Nanomaterials for Energy Storage and Conversion
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Nanomaterials for Energy Storage and Conversion Research Group
The Nanomaterials for Energy Storage and Conversion group conducts both fundamental and application-oriented research on new nanomaterials and nanostructures that can be used for energy storage and conversion. Particular emphasis is at the moment placed on the preparation of hollow, porous nanostructures and ordered nanowire/nanotube arrays of various inorganic materials, which not only possess large surface to volume ratios but also facilitate the transportation of electrolytes/ions/charge carriers. Comprehensive structural/compositional characterization in conjunction with studies of photoelectric, electrochemical and catalytic properties are carried out in order to elucidate the structure-property relation, to get a fundamental understanding about the underlying physics and chemistry in energy storage and conversion processes, and in turn to help materials design and optimization. Our research activities are primarily focused on the following areas:
Electrocatalysis. The group is committed to developing Pt-free electrocatalysts for use in hydrogen/oxygen evolution, oxygen reduction, and small molecule oxidation reactions.
Solar fuel production. Research efforts are devoted to: 1) Nanoatructured photocathodes and photoanodes; 2) Coupling of semiconductor photoelectrodes with HER or OER catalysts; 3) Improving lifetime of photoelectrodes.
Energy storage. The group is working on 1) Fabrication of hybrid/composite nanostructures; 2) Large-scale synthesis of porous/hollow nanostructures for use as electrode materials in Li-ion/Na-ion batteries and supercapacitors; 3) Flexible energy storage devices.
ON GOING RESEARCH PROJECTS
The project aims to develop efficient, low-cost and durable photocathodes for water reduction (solar H2 evolution) and photoanodes for water oxidation (solar O2 evolution). The research will be focused on developing robust nanowire arrays decorated with non-precious earth-abundant HER or OER catalysts. Optimized surface protection strategy will be employed to improve the operation lifetime of the photoelectrodes.
Hydrogen/oxygen evolution (HER/OER) and oxygen reduction (ORR) are important half-cell reactions in many electrochemical devices such as photoelectrochemical cells (PEC) and fuel cells. Pt-group metals are thus far the most efficient and commonly used catalysts for these reactions. However, for large-scale deployment of PEC cells and widespread use of fuel cells, it is apparently impractical to use Pt-group metals to catalyze these reactions because of the high cost and the scarcity of Pt. The project is aiming at developing non-precious earth-abundant catalysts for use as an alternative to Pt. Presently, the research is focused on the development of nanostructured transition metal oxides and sulfides.
The group aims to develop low-cost nanostructured hybrid solar cells using the Si nanowire or TiO2 nanotube arrays fabricated by the group. In addition, the group is also keen on lead iodide perovskite solar cells and their derivatives.
The project presently aims to develop binder-free electrodes for use as either anodes in lithium-ion batteries or electrodes in supercapcitors. The emphasis is placed on the development of metal oxide/sulfide nanostructures and carbon/oxide hybrids.
For future practical applications, large-scale and cost-effective synthesis of nanomaterials for use in energy storage and conversion is highly desired. The project aims to develop low-cost and scalable approaches to the fabrication of porous/hollow/core-shell nanostructures which can find applications in energy storage and conversion devices.
PUBLICATIONS
-
2021
Liu, Lifeng
Platinum group metal free nano-catalysts for proton exchange membrane water electrolysis Journal Article
Current Opinion in Chemical Engineering, 34 , 2021.
@article{Liu2021,
title = {Platinum group metal free nano-catalysts for proton exchange membrane water electrolysis},
author = {Liu, Lifeng},
url = {https://doi.org/10.1016/j.coche.2021.100743},
doi = {10.1016/j.coche.2021.100743},
year = {2021},
date = {2021-10-20},
journal = {Current Opinion in Chemical Engineering},
volume = {34},
abstract = {Green hydrogen produced by water electrolysis in combination with renewable energy is expected to become a key enabler for decarbonization of energy and transportation sectors as well as hard-to-abate industries, contributing to the achievement of carbon neutrality. Compared to the conventional alkaline water electrolysis technology, proton exchange membrane water electrolysis (PEMWE) possesses many advantages for green hydrogen production, but currently relies heavily on the expensive and scarce platinum group metals (PGMs) to catalyze the hydrogen evolution reaction (HER) and the oxygen evolution reaction (OER), which hinders widespread deployment of the PEMWE technology. This short review article briefly summarizes recent efforts dedicated to developing PGM-free HER and OER catalysts, with a focus on the emerging ones showing promising catalytic performance. Moreover, perspectives of future research on PGM-free catalysts are also outlined.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Green hydrogen produced by water electrolysis in combination with renewable energy is expected to become a key enabler for decarbonization of energy and transportation sectors as well as hard-to-abate industries, contributing to the achievement of carbon neutrality. Compared to the conventional alkaline water electrolysis technology, proton exchange membrane water electrolysis (PEMWE) possesses many advantages for green hydrogen production, but currently relies heavily on the expensive and scarce platinum group metals (PGMs) to catalyze the hydrogen evolution reaction (HER) and the oxygen evolution reaction (OER), which hinders widespread deployment of the PEMWE technology. This short review article briefly summarizes recent efforts dedicated to developing PGM-free HER and OER catalysts, with a focus on the emerging ones showing promising catalytic performance. Moreover, perspectives of future research on PGM-free catalysts are also outlined.Kundu, Manab, Xiong, Dehua, Thomas, Rajesh, Liu, Lifeng
Exceptional lithium storage performance achieved by iron-based nanostructures upon extended high-rate cycling Journal Article
Journal of Alloys and Compounds, 888 , 2021.
@article{Kundu2021,
title = {Exceptional lithium storage performance achieved by iron-based nanostructures upon extended high-rate cycling},
author = {Kundu, Manab, Xiong, Dehua, Thomas, Rajesh, Liu, Lifeng},
url = {https://doi.org/10.1016/j.jallcom.2021.161626},
doi = {10.1016/j.jallcom.2021.161626},
year = {2021},
date = {2021-08-17},
journal = {Journal of Alloys and Compounds},
volume = {888},
abstract = {Lithium storage performance of low-cost iron-based nanostructures including FeOOH nanorods (NRs) as well as Fe2O3 and FeP nanotubes (NTs) at high charge/discharge rates is comprehensively investigated. Although they show a low specific capacity at a rate of 1000 mA g−1 in the beginning of cycling test, it is found that the specific capacity increases as the cycling proceeds, and can eventually reach an exceptionally high value of 1670, 1644 and 1897 mAh g−1 for FeOOH NRs, Fe2O3 NTs and FeP NTs, respectively, after 1200 charge/discharge cycles. Moreover, even at a higher charge/discharge current density of 3000 mA g−1, FeOOH NRs, Fe2O3 NTs and FeP NTs can still deliver an impressive specific capacity of 419.4, 459.7 and 603.4 mAh g−1, respectively, upon 1400 charge/discharge cycles. The lithiation-induced activation process reported here offers a new perspective in designing high-performance anodes for long-lived lithium-ion batteries.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Lithium storage performance of low-cost iron-based nanostructures including FeOOH nanorods (NRs) as well as Fe2O3 and FeP nanotubes (NTs) at high charge/discharge rates is comprehensively investigated. Although they show a low specific capacity at a rate of 1000 mA g−1 in the beginning of cycling test, it is found that the specific capacity increases as the cycling proceeds, and can eventually reach an exceptionally high value of 1670, 1644 and 1897 mAh g−1 for FeOOH NRs, Fe2O3 NTs and FeP NTs, respectively, after 1200 charge/discharge cycles. Moreover, even at a higher charge/discharge current density of 3000 mA g−1, FeOOH NRs, Fe2O3 NTs and FeP NTs can still deliver an impressive specific capacity of 419.4, 459.7 and 603.4 mAh g−1, respectively, upon 1400 charge/discharge cycles. The lithiation-induced activation process reported here offers a new perspective in designing high-performance anodes for long-lived lithium-ion batteries. -
2020
Yu; Xu; Li; Wei; Zhang; Li; Miao; Araujo; Wang; Faria; Liu;* Lifeng Z P J Y Y F B N Y H W A Z C J L Y Y Liu*
J. Mater. Chem. A, 2020.
@article{Yu2020,
title = {Ultrafine oxygen vacancy-rich iridium oxide nanoclusters supported on high-surface-area, acid-stable titanium substrate for efficient and durable water oxidation at high current densities in acidic media},
author = {Yu; Xu; Li; Wei; Zhang; Li; Miao; Araujo; Wang; Faria; Liu;* Lifeng Z P J Y Y F B N Y H W A Z C J L Y Y Liu*},
editor = {Mater. Chem. J A},
doi = {10.1039/D0TA07093A},
year = {2020},
date = {2020-11-02},
journal = {J. Mater. Chem. A},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Yu; Xu; Li; Lifeng Z P J Y Y Liu*
Easy preparation of multifunctional ternary PdNiP/C catalysts for small organic molecule electro-oxidation with enhanced catalytic performance Journal Article Forthcoming
Journal of Energy Chemistry, Forthcoming.
@article{Liu*2020,
title = {Easy preparation of multifunctional ternary PdNiP/C catalysts for small organic molecule electro-oxidation with enhanced catalytic performance},
author = {Yu; Xu; Li; Lifeng Z P J Y Y Liu*},
editor = {Journal Energy of Chemistry},
doi = {https://doi.org/10.1016/j.jechem.2020.10.016},
year = {2020},
date = {2020-11-01},
journal = {Journal of Energy Chemistry},
keywords = {},
pubstate = {forthcoming},
tppubtype = {article}
}Yang; Xu; Wang; Yu; Bin; Tian; Fang; Liu; Qiao; Lifeng Liu*; B B J Y J Z P D T T X N Y L B H Liu
Amorphous phosphatized ruthenium-iron bimetallic nanoclusters with Pt-like activity for hydrogen evolution reaction Journal Article
Applied Catalysis B - Environmental, 2020.
@article{Liu2020,
title = {Amorphous phosphatized ruthenium-iron bimetallic nanoclusters with Pt-like activity for hydrogen evolution reaction},
author = {Yang; Xu; Wang; Yu; Bin; Tian; Fang; Liu; Qiao; Lifeng Liu*; B B J Y J Z P D T T X N Y L B H Liu},
editor = {Applied Catalysis B - Environmental},
doi = {10.1016/j.apcatb.2020.119583},
year = {2020},
date = {2020-10-14},
journal = {Applied Catalysis B - Environmental},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Wei;* Bihlmayer|;* Zhou; Feng; Kolen’ko; Xiong; Lifeng Liu; Bluegl; X K G X D W X Y V D H S R Dunin-Borkowshi
Discovery of two-dimensional topological ferroelectrinc metal in transition metal phosphides Journal Article
Advanced Materials, 2020.
@article{Dunin-Borkowshi2020,
title = {Discovery of two-dimensional topological ferroelectrinc metal in transition metal phosphides},
author = {Wei;* Bihlmayer|;* Zhou; Feng; Kolen’ko; Xiong; Lifeng Liu; Bluegl; X K G X D W X Y V D H S R Dunin-Borkowshi},
doi = {10.1002/adma.202003479},
year = {2020},
date = {2020-10-07},
journal = {Advanced Materials},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Liu; Wang; Oswarld; Tang; Wang; Yin; Lu; Lifeng Liu; Dong; Ma; Zhu; Zhu;* L J S H J Y Q H L F M O G Schmidt
Decoding of oxygen network distortion in a layered high-rate anode by in situ investigation of a single microelectrode Journal Article
ACS Nano, 2020.
@article{Liu2020b,
title = {Decoding of oxygen network distortion in a layered high-rate anode by in situ investigation of a single microelectrode},
author = {Liu; Wang; Oswarld; Tang; Wang; Yin; Lu; Lifeng Liu; Dong; Ma; Zhu; Zhu;* L J S H J Y Q H L F M O G Schmidt},
editor = {ACS Nano},
url = {https://pubs.acs.org/doi/10.1021/acsnano.0c04483},
year = {2020},
date = {2020-09-02},
journal = {ACS Nano},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Li; Wei; Yu; Bondarchuk; Araujo; Amorim; Xu;* Neves; Lifeng Y B Z P O A I J Y I C Liu*
Bifunctional porous cobalt phosphide foam for high-current-density alkaline water splitting with 4000-h long stability Journal Article
ACS Sustainable Chemistry & Engineering 2020, 2020.
@article{Liu*2020c,
title = {Bifunctional porous cobalt phosphide foam for high-current-density alkaline water splitting with 4000-h long stability},
author = {Li; Wei; Yu; Bondarchuk; Araujo; Amorim; Xu;* Neves; Lifeng Y B Z P O A I J Y I C Liu*},
url = {https://pubs.acs.org/doi/abs/10.1021/acssuschemeng.0c02671},
year = {2020},
date = {2020-08-27},
journal = {ACS Sustainable Chemistry & Engineering 2020},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Liu; Ma; Liu; Koch; Rosebrock; Li; Bettles; He; Koehn; Pfnur; Bigall; Ding; Y P S Y L F J M T R F T A H N C F L Zhang
Nitrogen doping improves the immobilization and catalytic effects of Co9S8 in Li-S batteries Journal Article
Advanced Functional Materials, 2020.
@article{Zhang2020,
title = {Nitrogen doping improves the immobilization and catalytic effects of Co9S8 in Li-S batteries},
author = {Liu; Ma; Liu; Koch; Rosebrock; Li; Bettles; He; Koehn; Pfnur; Bigall; Ding; Y P S Y L F J M T R F T A H N C F L Zhang},
doi = {https://doi.org/10.1002/adfm.202002462},
year = {2020},
date = {2020-06-21},
journal = {Advanced Functional Materials},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Xu; Amorim; Li; Li; Yu; Zhang; Araujo; Zhang; Lifeng J Y I Y J J Z P B S A N Liu*
Carbon Energy 2020, 2020.
@article{Liu*2020b,
title = {Stable overall water splitting in an asymmetric acid/alkaline electrolyzer comprising a bipolar membrane sandwiched by bifunctional cobalt nickel phosphide nanowire electrodes},
author = {Xu; Amorim; Li; Li; Yu; Zhang; Araujo; Zhang; Lifeng J Y I Y J J Z P B S A N Liu*},
editor = {Carbon Energy 2020},
doi = {10.1002/cey2.56},
year = {2020},
date = {2020-06-08},
journal = {Carbon Energy 2020},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Qi; Wu; Xu; Gao; Du; Liu; Lifeng Liu; Y J J Y H Z J B S D H Xiong*
One-step fabrication of self-supported Co@CoTe2 electrocatalyst for efficient and durable oxygen evolution reaction Journal Article
2020.
@article{Xiong*2020,
title = {One-step fabrication of self-supported Co@CoTe2 electrocatalyst for efficient and durable oxygen evolution reaction},
author = {Qi; Wu; Xu; Gao; Du; Liu; Lifeng Liu; Y J J Y H Z J B S D H Xiong*},
editor = {Inorganic Chemistry Frontier},
doi = {10.1039/d0qi00372g},
year = {2020},
date = {2020-05-25},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Wei;* Heggen; Xiong; Lifeng Liu; X K M D H R Dunin-Borkowski
Self-epitaxial hetero-nanolayers and surface atom reconstruction in electrocatalytic nickel phosphides Journal Article Forthcoming
ACS Applied Materials & Interfaces, (12), pp. 21616, Forthcoming.
@article{Dunin-Borkowski2020,
title = {Self-epitaxial hetero-nanolayers and surface atom reconstruction in electrocatalytic nickel phosphides},
author = {Wei;* Heggen; Xiong; Lifeng Liu; X K M D H R Dunin-Borkowski},
doi = {https://pubs.acs.org/doi/abs/10.1021/acsami.0c03154},
year = {2020},
date = {2020-04-17},
journal = {ACS Applied Materials & Interfaces},
number = {12},
pages = {21616},
keywords = {},
pubstate = {forthcoming},
tppubtype = {article}
}Li; Li*; Xu; Zhang; Li; Lifeng Liu*; Wang; Q J J J Y N Y P Z C F L Deepak
Ultrafine-grained porous Ir-based catalysts for high-performance overall water splitting in acidic media Journal Article
ACS Appl. Energy Mater, 2020.
@article{Deepak2020,
title = {Ultrafine-grained porous Ir-based catalysts for high-performance overall water splitting in acidic media},
author = {Li; Li*; Xu; Zhang; Li; Lifeng Liu*; Wang; Q J J J Y N Y P Z C F L Deepak},
doi = {https://doi.org/10.1021/acsaem.0c00201},
year = {2020},
date = {2020-04-07},
journal = {ACS Appl. Energy Mater},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Wei Li Amorim Thomas Thalluri Wang Zhou Xie Lifeng Liu* B J J I R S M Z C W Y S S 11. N. Zhang J. Y. Xu
ACS Applied Energy Materials, 2020.
@article{Zhang2020b,
title = {Mille-Crêpe-Like Metal Phosphide Nanocrystals/Carbon Nanotube Film Composites as High-Capacitance Negative Electrodes in Asymmetric Supercapacitors},
author = {Wei Li Amorim Thomas Thalluri Wang Zhou Xie Lifeng Liu* B J J I R S M Z C W Y S S 11. N. Zhang J. Y. Xu},
url = {https://pubs.acs.org/doi/abs/10.1021/acsaem.0c00263},
year = {2020},
date = {2020-03-05},
journal = {ACS Applied Energy Materials},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Xu; Lian; Wei; Li; Bondarchuk; Zhang; Yu; Araujo; Amorim; Wang;* Li;* Lifeng J Y Z B Y O N Z P A I Z C B Liu*
ACS Catalysis, 2020.
@article{Liu*2020d,
title = {Strong Electronic Coupling between Ultrafine Iridium–Ruthenium Nanoclusters and Conductive, Acid-Stable Tellurium Nanoparticle Support for Efficient and Durable Oxygen Evolution in Acidic and Neutral MediaACS Catalysis},
author = {Xu; Lian; Wei; Li; Bondarchuk; Zhang; Yu; Araujo; Amorim; Wang;* Li;* Lifeng J Y Z B Y O N Z P A I Z C B Liu*},
doi = {https://doi.org/10.1021/acscatal.9b05611},
year = {2020},
date = {2020-02-21},
journal = {ACS Catalysis},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Lv Huang Hu Lifeng Liu* C C Z P * X L * S. M. Thalluri L. C. Bai
Strategies for semiconductor/electrocatalysts coupling toward solar-driven water splitting Journal Article
Advanced Science, 2020.
@article{Thalluri2020,
title = {Strategies for semiconductor/electrocatalysts coupling toward solar-driven water splitting},
author = {Lv Huang Hu Lifeng Liu* C C Z P * X L * S. M. Thalluri L. C. Bai},
doi = {https://doi.org/10.1002/advs.201902102},
year = {2020},
date = {2020-02-04},
journal = {Advanced Science},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Yang; Duan; Tamirat; Liu; Lifeng Liu; B B B A G Y B H Liu*
Bamboo-like nitrogen-doped carbon nanotubes encapsulated with NiFeP nanoparticles and their efficient catalysis in the oxygen evolution reaction Journal Article
2020.
@article{Liu*2020e,
title = {Bamboo-like nitrogen-doped carbon nanotubes encapsulated with NiFeP nanoparticles and their efficient catalysis in the oxygen evolution reaction},
author = {Yang; Duan; Tamirat; Liu; Lifeng Liu; B B B A G Y B H Liu*},
doi = {https://doi.org/10.1016/j.electacta.2019.135360},
year = {2020},
date = {2020-01-20},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Zhang; Yi; He; Zhang; Shen; Liu; Lifeng Liu; Liu; R T J Y L J C P S J B H L Qiao
Proteomic and Metabolic Elucidation of Solar-Powered Biomanufacturing by Bio-Abiotic Hybrid System Journal Article
Chem, 2020 (6), pp. 234-249, 2020.
@article{Qiao2020,
title = {Proteomic and Metabolic Elucidation of Solar-Powered Biomanufacturing by Bio-Abiotic Hybrid System},
author = {Zhang; Yi; He; Zhang; Shen; Liu; Lifeng Liu; Liu; R T J Y L J C P S J B H L Qiao},
doi = {https://doi.org/10.1016/j.chempr.2019.11.002},
year = {2020},
date = {2020-01-09},
journal = {Chem},
volume = {2020},
number = {6},
pages = {234-249},
keywords = {},
pubstate = {published},
tppubtype = {article}
} -
2019
J.Y.Xu J.J.Li B.Wei I.Amorim R.Thomas S.M.Thalluri Y.Y.Liu G.H.Yu Lifeng Liu* N.Zhang Y.F.Li
High performance flexible solid-state asymmetric supercapacitors based on bi-metallic transition metal phosphide nanocrystals Journal Article
ACS Nano, 2019.
@article{Zhang2019,
title = {High performance flexible solid-state asymmetric supercapacitors based on bi-metallic transition metal phosphide nanocrystals},
author = {J.Y.Xu J.J.Li B.Wei I.Amorim R.Thomas S.M.Thalluri Y.Y.Liu G.H.Yu Lifeng Liu* N.Zhang Y.F.Li},
editor = {ACS Nano},
doi = {DOI: 10.1021/acsnano.9b04810},
year = {2019},
date = {2019-08-28},
journal = {ACS Nano},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Z.W.Fang X.Zhang X.Xu Y.Du Lifeng Liu Shixue Dou Guihua Yu* N.N.Wang Z.C.Bai
A general synthetic strategy for pomegranate-like transition metal phosphide@N-doped carbon nanostructures with high lithium storage capacity Journal Article
ACS Mater. Lett., 1 (265), 2019.
@article{Wang2019,
title = {A general synthetic strategy for pomegranate-like transition metal phosphide@N-doped carbon nanostructures with high lithium storage capacity},
author = {Z.W.Fang X.Zhang X.Xu Y.Du Lifeng Liu Shixue Dou Guihua Yu* N.N.Wang Z.C.Bai},
doi = {doi.org/10.1021/acsmaterialslett.9b00216},
year = {2019},
date = {2019-07-16},
journal = {ACS Mater. Lett.},
volume = {1},
number = {265},
keywords = {},
pubstate = {published},
tppubtype = {article}
}R.Thomas L.Qiao Z.C.Wang Lifeng Liu* S.M.Mouli B.Wei
Invert pyramid textured p-silicon covered with Co2P as an efficient and stable solar hydrogen evolution photocathode Journal Article
ACS Energy Lett., 4 (1755), 2019.
@article{S.M.Mouli2019,
title = {Invert pyramid textured p-silicon covered with Co2P as an efficient and stable solar hydrogen evolution photocathode},
author = {R.Thomas L.Qiao Z.C.Wang Lifeng Liu* S.M.Mouli B.Wei},
doi = {doi.org/10.1021/acsenergylett.9b00964},
year = {2019},
date = {2019-06-24},
journal = {ACS Energy Lett.},
volume = {4},
number = {1755},
keywords = {},
pubstate = {published},
tppubtype = {article}
}N.Zhang D.H.Xiong S.M.Thalluri R.Thomas J.P.S.Sousa A.Araujo H.Li Lifeng Liu* I Amorim J.Y.Xu
Bi-metallic cobalt-nickel phosphide nanowires for electrocatalysis of the oxygen and hydrogen evolution reactions Journal Article
Catal. Today, 2019.
@article{Amorim2019,
title = {Bi-metallic cobalt-nickel phosphide nanowires for electrocatalysis of the oxygen and hydrogen evolution reactions},
author = {N.Zhang D.H.Xiong S.M.Thalluri R.Thomas J.P.S.Sousa A.Araujo H.Li Lifeng Liu* I Amorim J.Y.Xu},
doi = {DOI: 10.1016/j.cattod.2019.05.037},
year = {2019},
date = {2019-05-20},
journal = {Catal. Today},
keywords = {},
pubstate = {published},
tppubtype = {article}
}S.Z.Huang X.Y.Lu L.Zhang Y.Li S.T.Wang Lifeng Liu* Q.H.Weng O.G.Schmidt L.X.Liu M.S.Zhu
Artificial electrode interface enables stable operation of freestanding anodes for high-performance flexible lithium ion batteries Journal Article
J. Mater. Chem. A, 7 (14097), 2019.
@article{L.X.Liu2019,
title = {Artificial electrode interface enables stable operation of freestanding anodes for high-performance flexible lithium ion batteries},
author = {S.Z.Huang X.Y.Lu L.Zhang Y.Li S.T.Wang Lifeng Liu* Q.H.Weng O.G.Schmidt L.X.Liu M.S.Zhu},
doi = {DOI: 10.1039/C9TA03302E},
year = {2019},
date = {2019-05-16},
journal = {J. Mater. Chem. A},
volume = {7},
number = {14097},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Y.Li J.Y.Xu* J.J.Li* Lifeng Liu F.L.Deepak Q.Li B.Wei
Large-scale fabrication of hollow Pt3Al nanoboxes and their electrocatalytic performance for hydrogen evolution reaction Journal Article
ACS Sus. Chem. Eng, 7 (9842), 2019.
@article{Q.Li2019,
title = {Large-scale fabrication of hollow Pt3Al nanoboxes and their electrocatalytic performance for hydrogen evolution reaction},
author = {Y.Li J.Y.Xu* J.J.Li* Lifeng Liu F.L.Deepak Q.Li B.Wei},
doi = {doi.org/10.1021/acssuschemeng.9b00372},
year = {2019},
date = {2019-05-13},
journal = {ACS Sus. Chem. Eng},
volume = {7},
number = {9842},
keywords = {},
pubstate = {published},
tppubtype = {article}
}X.FGao Lifeng Liu* W.Li D.H.Xiong
The oxygen evolution reaction enabled by transition metal phosphide and chalcogenide pre-catalysts with dynamic changes Journal Article
Chem. Commun, 55 (8744), 2019, (Invited Feature Article).
@article{W.Li2019,
title = {The oxygen evolution reaction enabled by transition metal phosphide and chalcogenide pre-catalysts with dynamic changes},
author = {X.FGao Lifeng Liu* W.Li D.H.Xiong},
doi = {DOI:10.1039/C9CC02845E},
year = {2019},
date = {2019-04-12},
journal = {Chem. Commun},
volume = {55},
number = {8744},
note = {Invited Feature Article},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Hong Li Junyuan Xu Junjie Li Xiujian Zhao Lifeng Liu Dehua Xiong Zijuan Du
Polyvinylpyrrolidone-Assisted Hydrothermal Synthesis of CuCoO2 Nanoplates with Enhanced Oxygen Evolution Reaction Performance Journal Article
ACS Sustainable Chemistry & Engineering, 7 , pp. 1493-1501, 2019.
@article{Xiong2019,
title = {Polyvinylpyrrolidone-Assisted Hydrothermal Synthesis of CuCoO2 Nanoplates with Enhanced Oxygen Evolution Reaction Performance},
author = {Hong Li Junyuan Xu Junjie Li Xiujian Zhao Lifeng Liu Dehua Xiong Zijuan Du},
url = {https://www.researchgate.net/publication/329147815_Polyvinylpyrrolidone-Assisted_Hydrothermal_Synthesis_of_CuCoO2_Nanoplates_with_Enhanced_Oxygen_Evolution_Reaction_Performance},
doi = {DOI:10.1021/acssuschemeng.8b05236},
year = {2019},
date = {2019-01-28},
journal = {ACS Sustainable Chemistry & Engineering},
volume = {7},
pages = {1493-1501},
abstract = {Tuning size and morphology and exploiting new catalytic materials are several important strategies commonly used to develop highly efficient oxygen evolution reaction (OER) electrocatalysts. In this work, we report the synthesis of CuCoO2 (CCO) nanoplates through a facile one-step PVP assisted hydrothermal process. The influence of hydrothermal reaction parameters, including the precursor composition, reaction temperature and duration, on the morphology, size and crystal phase of CCO crystals has been investigated in detail. In addition, X-ray diffractometry (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and X-ray photoelectron spectroscopy (XPS) have been used to comprehensively characterize CCO’s crystal structure, morphology, composition and chemical states of elements. Furthermore, the electrocatalytic performance of CCO nanoplates towards the OER is studied and compared to that of CCO micrometer-sized crystals. The CCO nanoplates only require a low overpotential of 390 mV to attain an anodic current density 10 mA cm-2 in alkaline solution, and show comparatively fast OER kinetics with a Tafel slope of 70 mV dec-1 and reasonably good long-term catalytic stability, substantially outperforming CCO micro-crystals, which highlights the importance of size and morphology of CCO for use in OER electrocatalysis.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Tuning size and morphology and exploiting new catalytic materials are several important strategies commonly used to develop highly efficient oxygen evolution reaction (OER) electrocatalysts. In this work, we report the synthesis of CuCoO2 (CCO) nanoplates through a facile one-step PVP assisted hydrothermal process. The influence of hydrothermal reaction parameters, including the precursor composition, reaction temperature and duration, on the morphology, size and crystal phase of CCO crystals has been investigated in detail. In addition, X-ray diffractometry (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and X-ray photoelectron spectroscopy (XPS) have been used to comprehensively characterize CCO’s crystal structure, morphology, composition and chemical states of elements. Furthermore, the electrocatalytic performance of CCO nanoplates towards the OER is studied and compared to that of CCO micrometer-sized crystals. The CCO nanoplates only require a low overpotential of 390 mV to attain an anodic current density 10 mA cm-2 in alkaline solution, and show comparatively fast OER kinetics with a Tafel slope of 70 mV dec-1 and reasonably good long-term catalytic stability, substantially outperforming CCO micro-crystals, which highlights the importance of size and morphology of CCO for use in OER electrocatalysis. -
2018
Junjie Li Isilda Amorim Bingsen Zhang Dehua Xiong Nan Zhang Sitaramanjaneya Mouli Thalluri Juliana P.S.Sousa Lifeng Liu Junyuan Xu Yuefeng Liu
J. Mater. Chem. A, 6 , 2018.
@article{Xu2018e,
title = {Hollow cobalt phosphide octahedral pre-catalysts with exceptionally high intrinsic catalytic activity for electro-oxidation of water and methanol},
author = {Junjie Li Isilda Amorim Bingsen Zhang Dehua Xiong Nan Zhang Sitaramanjaneya Mouli Thalluri Juliana P.S.Sousa Lifeng Liu Junyuan Xu Yuefeng Liu},
url = {https://www.researchgate.net/publication/328034898_Hollow_cobalt_phosphide_octahedral_pre-catalysts_with_exceptionally_high_intrinsic_catalytic_activity_for_electro-oxidation_of_water_and_methanol},
doi = {DOI:10.1039/C8TA07958G},
year = {2018},
date = {2018-10-16},
journal = {J. Mater. Chem. A},
volume = {6},
abstract = {Microstructural engineering is an effective approach to improving electrocatalytic activity of a catalyst. Shape-controlled hollow nanostructures represent a class of interesting architectures for use in electrocatalysis, given that they may offer large surface area, preferably exposed active sites, reduced diffusion pathways for both charge and mass transport, as well as enhanced catalytic activity due to the nano-cavity effect. Herein, we for the first time report the synthesis of hollow cobalt phosphide nanoparticles with well-defined octahedral shape (CoP OCHs) via multi-step reactions. When used as pre-catalysts for the oxygen evolution reaction (OER) in alkaline solution, the as-obtained CoP OCHs not only show high apparent catalytic activity requiring an overpotential of only 240 mV to deliver the benchmark current density of 10 mA cm-2, but also exhibit an exceptionally high catalyst surface-area-based turnover frequency (TOF) of 17.6 s-1 and a catalyst mass-based TOF of 0.072 s-1 at a low overpotential of 300 mV, demonstrating excellent intrinsic catalytic activity. Moreover, the CoP OCHs also show high electrocatalytic activity for the methanol oxidation reaction (MOR), outperforming most metal phosphide based MOR catalysts reported so far. The synthetic strategy reported here can be readily extended to prepare other hollow shape-controlled metal phosphide catalysts.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Microstructural engineering is an effective approach to improving electrocatalytic activity of a catalyst. Shape-controlled hollow nanostructures represent a class of interesting architectures for use in electrocatalysis, given that they may offer large surface area, preferably exposed active sites, reduced diffusion pathways for both charge and mass transport, as well as enhanced catalytic activity due to the nano-cavity effect. Herein, we for the first time report the synthesis of hollow cobalt phosphide nanoparticles with well-defined octahedral shape (CoP OCHs) via multi-step reactions. When used as pre-catalysts for the oxygen evolution reaction (OER) in alkaline solution, the as-obtained CoP OCHs not only show high apparent catalytic activity requiring an overpotential of only 240 mV to deliver the benchmark current density of 10 mA cm-2, but also exhibit an exceptionally high catalyst surface-area-based turnover frequency (TOF) of 17.6 s-1 and a catalyst mass-based TOF of 0.072 s-1 at a low overpotential of 300 mV, demonstrating excellent intrinsic catalytic activity. Moreover, the CoP OCHs also show high electrocatalytic activity for the methanol oxidation reaction (MOR), outperforming most metal phosphide based MOR catalysts reported so far. The synthetic strategy reported here can be readily extended to prepare other hollow shape-controlled metal phosphide catalysts.Dehua Xiong Rongsheng Cai Xian-Kui Wei Marc Heggen Emanuele Barborini Simone Vinati Rafal E.Dunin-Borkowski Richard E.Palmer Lifeng Liu Junyuan Xu Shane Murphy
Cluster Beam Deposition of Ultrafine Cobalt and Ruthenium Clusters for Efficient and Stable Oxygen Evolution Reaction Journal Article
ACS Applied Energy Materials, 1 , 2018.
@article{Xu2018eb,
title = {Cluster Beam Deposition of Ultrafine Cobalt and Ruthenium Clusters for Efficient and Stable Oxygen Evolution Reaction},
author = {Dehua Xiong Rongsheng Cai Xian-Kui Wei Marc Heggen Emanuele Barborini Simone Vinati Rafal E.Dunin-Borkowski Richard E.Palmer Lifeng Liu Junyuan Xu Shane Murphy},
url = {https://www.researchgate.net/publication/325703234_Cluster_Beam_Deposition_of_Ultrafine_Cobalt_and_Ruthenium_Clusters_for_Efficient_and_Stable_Oxygen_Evolution_Reaction},
doi = {DOI:10.1021/acsaem.8b00111},
year = {2018},
date = {2018-06-19},
journal = {ACS Applied Energy Materials},
volume = {1},
abstract = {Ultrafine cobalt and ruthenium clusters are deposited on carbon paper substrates by Cluster Beam Deposition using a Matrix Assembly Cluster Source and a Pulsed Microplasma Cluster Source, respectively. When used to catalyze the oxygen evolution reaction (OER), the cobalt and ruthenium clusters show electrocatalytic performance superior to the state-of-the-art Ru/C and RuO2 nanoparticle catalysts on both mass and specific-surface-area basis. Typically, the cobalt clusters can deliver 10 mA cm-2 at a low overpotential of 320 mV, and show a small Tafel slope of 50 mV dec-1 and a mass-based turnover frequency of 0.01 s-1 at an overpotential of 300 mV, outperforming many cobalt-based OER catalysts.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Ultrafine cobalt and ruthenium clusters are deposited on carbon paper substrates by Cluster Beam Deposition using a Matrix Assembly Cluster Source and a Pulsed Microplasma Cluster Source, respectively. When used to catalyze the oxygen evolution reaction (OER), the cobalt and ruthenium clusters show electrocatalytic performance superior to the state-of-the-art Ru/C and RuO2 nanoparticle catalysts on both mass and specific-surface-area basis. Typically, the cobalt clusters can deliver 10 mA cm-2 at a low overpotential of 320 mV, and show a small Tafel slope of 50 mV dec-1 and a mass-based turnover frequency of 0.01 s-1 at an overpotential of 300 mV, outperforming many cobalt-based OER catalysts.Schmidt Shaozhuan Huang; Lin Zhangad; Lifeng Liu; Lixiang Liu; Junjie Li; Han Hu; Jiawei Wang; Fei Dinga; Oliver G
High energy lithium ion battery using rationally engineered amorphous TiOx/Si/TiOx nanomembrane anode Journal Article
Energy Storage Materials, 2018.
@article{Huang2018,
title = {High energy lithium ion battery using rationally engineered amorphous TiOx/Si/TiOx nanomembrane anode},
author = {Schmidt Shaozhuan Huang; Lin Zhangad; Lifeng Liu; Lixiang Liu; Junjie Li; Han Hu; Jiawei Wang; Fei Dinga; Oliver G},
url = {https://www.sciencedirect.com/science/article/pii/S2405829717304919},
doi = {https://doi.org/10.1016/j.ensm.2017.11.010},
year = {2018},
date = {2018-05-12},
journal = {Energy Storage Materials},
abstract = {Energy density is the main performance indicator of lithium ion batteries (LIBs) that has driven the entire technology forward over the past decades. However, the current LIBs cannot meet the ever-increasing energy storage demand. Herein, a stable lithium-ion full battery with high energy density of 525 Wh kg-1 has been demonstrated, using a newly designed 3D amorphous TiOx/Si/TiOx nanomembranes (NMs) as the anode. The Li+ penetrable and electron conductive TiOx coating on the Si surface effectively improves the e-/Li+ transportability and enhances the structural stability of the TiOx/Si/TiOx NMs. The nanoscaled multi-winding membranes provide shortened pathway for rapid e-/Li+ transport, and empty channels allowing for free volume expansion of the Si without mechanical breaking. As a result, the customized TiOx/Si/TiOx NMs display improved lithium storage performance with high initial coulombic efficiency (ICE), long cycle life and excellent rate capability. When pairing this special anode with a commercial LiNi1/3Co1/3Mn1/3O2 (NCM) cathode, the TiOx/Si/TiOx-NCM full-battery delivers good cycling stability, excellent power capability and, most remarkably, an unprecedented improvement in the gravimetric energy density. Therefore, it is believed that this unique TiOx/Si/TiOx nanomaterials may hold promise for the next-generation LIBs with high energy density.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Energy density is the main performance indicator of lithium ion batteries (LIBs) that has driven the entire technology forward over the past decades. However, the current LIBs cannot meet the ever-increasing energy storage demand. Herein, a stable lithium-ion full battery with high energy density of 525 Wh kg-1 has been demonstrated, using a newly designed 3D amorphous TiOx/Si/TiOx nanomembranes (NMs) as the anode. The Li+ penetrable and electron conductive TiOx coating on the Si surface effectively improves the e-/Li+ transportability and enhances the structural stability of the TiOx/Si/TiOx NMs. The nanoscaled multi-winding membranes provide shortened pathway for rapid e-/Li+ transport, and empty channels allowing for free volume expansion of the Si without mechanical breaking. As a result, the customized TiOx/Si/TiOx NMs display improved lithium storage performance with high initial coulombic efficiency (ICE), long cycle life and excellent rate capability. When pairing this special anode with a commercial LiNi1/3Co1/3Mn1/3O2 (NCM) cathode, the TiOx/Si/TiOx-NCM full-battery delivers good cycling stability, excellent power capability and, most remarkably, an unprecedented improvement in the gravimetric energy density. Therefore, it is believed that this unique TiOx/Si/TiOx nanomaterials may hold promise for the next-generation LIBs with high energy density.Yu Xu Amorim Gaspar Qiao Ferreira Alpuim Liu K J I J L P P L S. Mouli Thalluri J. Borme
Conformal and continuous deposition of bifunctional cobalt phosphide layers on p-silicon nanowire arrays for improved solar hydrogen evolution Journal Article
Nano Research, 11 (9), pp. 4823–4835, 2018, ISSN: 1998-0124.
@article{Thalluri2018cb,
title = {Conformal and continuous deposition of bifunctional cobalt phosphide layers on p-silicon nanowire arrays for improved solar hydrogen evolution},
author = {Yu Xu Amorim Gaspar Qiao Ferreira Alpuim Liu K J I J L P P L S. Mouli Thalluri J. Borme},
doi = {10.1007/s12274-018-2070-4},
issn = {1998-0124},
year = {2018},
date = {2018-04-27},
journal = {Nano Research},
volume = {11},
number = {9},
pages = {4823–4835},
abstract = {Vertically aligned p-silicon nanowire (SiNW) arrays have been extensively investigated in recent years as promising photocathodes for solar-driven hydrogen evolution. However, the fabrication of SiNW photocathodes with both high photoelectrocatalytic activity and long-term operational stability using a simple and affordable approach is a challenging task. Herein, we report conformal and continuous deposition of a di-cobalt phosphide (Co2P) layer on lithography-patterned highly ordered SiNW arrays via a cost-effective drop-casting method followed by a low-temperature phosphorization treatment. The as-deposited Co2P layer consists of crystalline nanoparticles and has an intimate contact with SiNWs, forming a well-defined SiNW@Co2P core/shell nanostructure. The conformal and continuous Co2P layer functions as a highly efficient catalyst capable of substantially improving the photoelectrocatalytic activity for the hydrogen evolution reaction (HER) and effectively passivates the SiNWs to protect them from photo-oxidation, thus prolonging the lifetime of the electrode. As aconsequence, the SiNW@Co2P photocathode with an optimized Co2P layer thickness exhibits a high photocurrent density of–21.9 mA·cm−2 at 0 V versus reversible hydrogen electrode and excellent operational stability up to 20 h for solar-driven hydrogen evolution, outperforming many nanostructured silicon photocathodes reported in the literature. The combination of passivation and catalytic functions in a single continuous layer represents a promising strategy for designing high-performance semiconductor photoelectrodes for use insolar-driven water splitting, which may simplify fabrication procedures andpotentially reduce production costs.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Vertically aligned p-silicon nanowire (SiNW) arrays have been extensively investigated in recent years as promising photocathodes for solar-driven hydrogen evolution. However, the fabrication of SiNW photocathodes with both high photoelectrocatalytic activity and long-term operational stability using a simple and affordable approach is a challenging task. Herein, we report conformal and continuous deposition of a di-cobalt phosphide (Co2P) layer on lithography-patterned highly ordered SiNW arrays via a cost-effective drop-casting method followed by a low-temperature phosphorization treatment. The as-deposited Co2P layer consists of crystalline nanoparticles and has an intimate contact with SiNWs, forming a well-defined SiNW@Co2P core/shell nanostructure. The conformal and continuous Co2P layer functions as a highly efficient catalyst capable of substantially improving the photoelectrocatalytic activity for the hydrogen evolution reaction (HER) and effectively passivates the SiNWs to protect them from photo-oxidation, thus prolonging the lifetime of the electrode. As aconsequence, the SiNW@Co2P photocathode with an optimized Co2P layer thickness exhibits a high photocurrent density of–21.9 mA·cm−2 at 0 V versus reversible hydrogen electrode and excellent operational stability up to 20 h for solar-driven hydrogen evolution, outperforming many nanostructured silicon photocathodes reported in the literature. The combination of passivation and catalytic functions in a single continuous layer represents a promising strategy for designing high-performance semiconductor photoelectrodes for use insolar-driven water splitting, which may simplify fabrication procedures andpotentially reduce production costs.Li Liu Zhang Xiong Amorim Thalluri Li Liu Lifeng* T F; J J; Y F; B S; D H; I; S M; W; Xu J. Y.; Liu
Ruthenium cobalt phosphide hybrid clusters with exceptional hydrogen evolution performance in both acidic and alkaline electrolytes Journal Article
Energy Environ. Sci., 2018.
@article{Xu2018c,
title = {Ruthenium cobalt phosphide hybrid clusters with exceptional hydrogen evolution performance in both acidic and alkaline electrolytes},
author = {Li Liu Zhang Xiong Amorim Thalluri Li Liu Lifeng* T F; J J; Y F; B S; D H; I; S M; W; Xu J. Y.; Liu},
url = {http://pubs.rsc.org/en/content/articlehtml/2018/ee/c7ee03603e},
doi = {10.1039/C7EE03603E},
year = {2018},
date = {2018-04-11},
journal = {Energy Environ. Sci.},
abstract = {In this article, we for the first time report the synthesis and electrocatalytic properties of ruthenium cobalt phosphide hybrid clusters for the hydrogen evolution reaction (HER). Two types of catalysts are investigated: wet chemical reduction of Ru3+ on pre-formed cobalt phosphide (CoP) nanoparticles results in ruthenium–cobalt phosphide side-by-side structures (Ru/CoP); while phosphorizing chemically reduced RuCo alloy leads to the formation of hybrid ruthenium cobalt phosphide (RuCoP) clusters. Compared to pristine Ru clusters, both Ru/CoP and RuCoP show significantly improved HER performance in both acidic and alkaline solutions. In particular, the hybrid RuCoP clusters demonstrate a considerably low overpotential (η10) of 11 mV at −10 mA cm−2 and a high turnover frequency (TOF) of 10.95 s−1 at η = 100 mV in 0.5 M H2SO4. Even in 1.0 M KOH the excellent HER activity of the RuCoP clusters remains, with a very low η10 of 23 mV and exceptionally high TOF value of 7.26 s−1 at η = 100 mV. Moreover, the RuCoP catalysts can sustain galvanostatic electrolysis in both acidic and alkaline solutions at −10 mA cm−2 for 150 h with little degradation, showing better catalytic stability than the state-of-the-art commercial Pt/C catalysts. Our density functional theory (DFT) calculations indicate that the RuCoP hybrid exhibits a hydrogen adsorption energy very close to that of Pt and water and –OH adsorption energies distinct from pristine Ru, which reasonably explain the experimentally observed excellent HER activities and highlight the importance of synergistic coupling with cobalt phosphide to boost the HER performance of ruthenium.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}In this article, we for the first time report the synthesis and electrocatalytic properties of ruthenium cobalt phosphide hybrid clusters for the hydrogen evolution reaction (HER). Two types of catalysts are investigated: wet chemical reduction of Ru3+ on pre-formed cobalt phosphide (CoP) nanoparticles results in ruthenium–cobalt phosphide side-by-side structures (Ru/CoP); while phosphorizing chemically reduced RuCo alloy leads to the formation of hybrid ruthenium cobalt phosphide (RuCoP) clusters. Compared to pristine Ru clusters, both Ru/CoP and RuCoP show significantly improved HER performance in both acidic and alkaline solutions. In particular, the hybrid RuCoP clusters demonstrate a considerably low overpotential (η10) of 11 mV at −10 mA cm−2 and a high turnover frequency (TOF) of 10.95 s−1 at η = 100 mV in 0.5 M H2SO4. Even in 1.0 M KOH the excellent HER activity of the RuCoP clusters remains, with a very low η10 of 23 mV and exceptionally high TOF value of 7.26 s−1 at η = 100 mV. Moreover, the RuCoP catalysts can sustain galvanostatic electrolysis in both acidic and alkaline solutions at −10 mA cm−2 for 150 h with little degradation, showing better catalytic stability than the state-of-the-art commercial Pt/C catalysts. Our density functional theory (DFT) calculations indicate that the RuCoP hybrid exhibits a hydrogen adsorption energy very close to that of Pt and water and –OH adsorption energies distinct from pristine Ru, which reasonably explain the experimentally observed excellent HER activities and highlight the importance of synergistic coupling with cobalt phosphide to boost the HER performance of ruthenium.Yu Xu Amorim Gaspar Qiao Ferreira Alpuim Lifeng Liu* K J Y I J L P P S. M. Thalluri J. Borme
Conformal and continuous deposition of bifunctional cobalt phosphide layers on p-silicon nanowire arrays for improved solar hydrogen evolution Journal Article
Nano Research, 2018.
@article{Thalluri2018c,
title = {Conformal and continuous deposition of bifunctional cobalt phosphide layers on p-silicon nanowire arrays for improved solar hydrogen evolution},
author = {Yu Xu Amorim Gaspar Qiao Ferreira Alpuim Lifeng Liu* K J Y I J L P P S. M. Thalluri J. Borme},
url = {https://link.springer.com/article/10.1007%2Fs12274-018-2070-4},
doi = {10.1007/s12274-018-2070-4},
year = {2018},
date = {2018-04-07},
journal = {Nano Research},
abstract = {Vertically aligned p-silicon nanowire (SiNW) arrays have been extensively investigated in recent years as promising photocathodes for solar-driven hydrogen evolution. However, the fabrication of SiNW photocathodes with both high photoelectrocatalytic activity and long-term operational stability using a simple and affordable approach is a challenging task. Herein, we report conformal and continuous deposition of a di-cobalt phosphide (Co2P) layer on lithography-patterned highly ordered SiNW arrays via a cost-effective drop-casting method followed by a low-temperature phosphorization treatment. The as-deposited Co2P layer consists of crystalline nanoparticles and has an intimate contact with SiNWs, forming a well-defined SiNW@Co2P core/shell nanostructure. The conformal and continuous Co2P layer functions as a highly efficient catalyst capable of substantially improving the photoelectrocatalytic activity for the hydrogen evolution reaction (HER) and effectively passivates the SiNWs to protect them from photo-oxidation, thus prolonging the lifetime of the electrode. As aconsequence, the SiNW@Co2P photocathode with an optimized Co2P layer thickness exhibits a high photocurrent density of–21.9 mA·cm−2 at 0 V versus reversible hydrogen electrode and excellent operational stability up to 20 h for solar-driven hydrogen evolution, outperforming many nanostructured silicon photocathodes reported in the literature. The combination of passivation and catalytic functions in a single continuous layer represents a promising strategy for designing high-performance semiconductor photoelectrodes for use insolar-driven water splitting, which may simplify fabrication procedures andpotentially reduce production costs.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Vertically aligned p-silicon nanowire (SiNW) arrays have been extensively investigated in recent years as promising photocathodes for solar-driven hydrogen evolution. However, the fabrication of SiNW photocathodes with both high photoelectrocatalytic activity and long-term operational stability using a simple and affordable approach is a challenging task. Herein, we report conformal and continuous deposition of a di-cobalt phosphide (Co2P) layer on lithography-patterned highly ordered SiNW arrays via a cost-effective drop-casting method followed by a low-temperature phosphorization treatment. The as-deposited Co2P layer consists of crystalline nanoparticles and has an intimate contact with SiNWs, forming a well-defined SiNW@Co2P core/shell nanostructure. The conformal and continuous Co2P layer functions as a highly efficient catalyst capable of substantially improving the photoelectrocatalytic activity for the hydrogen evolution reaction (HER) and effectively passivates the SiNWs to protect them from photo-oxidation, thus prolonging the lifetime of the electrode. As aconsequence, the SiNW@Co2P photocathode with an optimized Co2P layer thickness exhibits a high photocurrent density of–21.9 mA·cm−2 at 0 V versus reversible hydrogen electrode and excellent operational stability up to 20 h for solar-driven hydrogen evolution, outperforming many nanostructured silicon photocathodes reported in the literature. The combination of passivation and catalytic functions in a single continuous layer represents a promising strategy for designing high-performance semiconductor photoelectrodes for use insolar-driven water splitting, which may simplify fabrication procedures andpotentially reduce production costs.Sitaramanjaneya Mouli Thalluri; Jérôme Borme; Dehua Xiong; Junyuan Xu; Wei Li; Isilda Amorim; Pedro Alpuim; João Gaspar; Hélder Fonseca; Liang Qiao; Lifeng Liu
Sustainable Energy & Fuels, 2 (5), pp. 978-982, 2018.
@article{Thalluri2018cc,
title = {Highly-ordered silicon nanowire arrays for photoelectrochemical hydrogen evolution: An investigation on the effect of wire diameter, length and inter-wire spacing},
author = {Sitaramanjaneya Mouli Thalluri; Jérôme Borme; Dehua Xiong; Junyuan Xu; Wei Li; Isilda Amorim; Pedro Alpuim; João Gaspar; Hélder Fonseca; Liang Qiao; Lifeng Liu},
url = {http://pubs.rsc.org/en/content/articlelanding/2018/se/c7se00591a#!divAbstract},
doi = {10.1039/C7SE00591A},
year = {2018},
date = {2018-03-08},
journal = {Sustainable Energy & Fuels},
volume = {2},
number = {5},
pages = {978-982},
abstract = {Vertically-aligned, highly-ordered silicon nanowire (SiNW) array photocathodes are fabricated employing e-beam lithography followed by deep reactive ion etching (DRIE) of Si. The effect of structural parameters of SiNWs, including wire diameter, length and inter-wire spacing, on their photoelectrocatalytic hydrogen evolution performance has been systematically investigated. Within the range of dimensions under study, the SiNW photocathode with a wire diameter of 200 nm, a length of 1 μm and an inter-wire spacing of 175 nm shows the best performance exhibiting a maximal saturated photocurrent density of 52 mA cm−2 and an onset potential (@−1 mA cm−2) of −0.17 V versus reversible hydrogen electrode. These lithography-patterned SiNWs with homogeneous structural parameters can help establish an unobscured structure–activity relation and facilitate Si-based photoelectrode design.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Vertically-aligned, highly-ordered silicon nanowire (SiNW) array photocathodes are fabricated employing e-beam lithography followed by deep reactive ion etching (DRIE) of Si. The effect of structural parameters of SiNWs, including wire diameter, length and inter-wire spacing, on their photoelectrocatalytic hydrogen evolution performance has been systematically investigated. Within the range of dimensions under study, the SiNW photocathode with a wire diameter of 200 nm, a length of 1 μm and an inter-wire spacing of 175 nm shows the best performance exhibiting a maximal saturated photocurrent density of 52 mA cm−2 and an onset potential (@−1 mA cm−2) of −0.17 V versus reversible hydrogen electrode. These lithography-patterned SiNWs with homogeneous structural parameters can help establish an unobscured structure–activity relation and facilitate Si-based photoelectrode design.Xiong Zhang Liu Wu Amorim Li Thalluri Lifeng Liu D H B S Y F K H I W S M J.Y. Xu J.J. Li
Trends in activity for the oxygen evolution reaction on transition metal (M = Fe, Co, Ni) monophosphide catalysts Journal Article
Chem. Sci., 2018.
@article{Xu2018b,
title = {Trends in activity for the oxygen evolution reaction on transition metal (M = Fe, Co, Ni) monophosphide catalysts},
author = {Xiong Zhang Liu Wu Amorim Li Thalluri Lifeng Liu D H B S Y F K H I W S M J.Y. Xu J.J. Li},
url = {http://pubs.rsc.org/en/content/articlelanding/2018/sc/c7sc05033j#!divAbstract},
doi = {10.1039/C7SC05033J},
year = {2018},
date = {2018-03-05},
journal = {Chem. Sci.},
abstract = {Transition metal phosphides (TMPs) have recently emerged as a new class of pre-catalysts that can efficiently catalyze the oxygen evolution reaction (OER). However, how the OER activity of TMPs varies with the catalyst composition has not been systematically explored. Here, we report the alkaline OER electrolysis of a series of nanoparticulate phosphides containing different equimolar metal (M = Fe, Co, Ni) components. Notable trends in OER activity are observed, following the order of FeP < NiP < CoP < FeNiP < FeCoP < CoNiP < FeCoNiP, which indicate that the introduction of a secondary metal(s) to a mono-metallic TMP substantially boosts the OER performance. We ascribe the promotional effect to the enhanced oxidizing power of bi- and tri-metallic TMPs that can facilitate the formation of MOH and chemical adsorption of OH− groups, which are the rate-limiting steps for these catalysts according to our Tafel analysis. Remarkably, the tri-metallic FeCoNiP pre-catalyst exhibits exceptionally high apparent and intrinsic OER activities, requiring only 200 mV to deliver 10 mA cm−2 and showing a high turnover frequency (TOF) of ≥0.94 s−1 at the overpotential of 350 mV.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Transition metal phosphides (TMPs) have recently emerged as a new class of pre-catalysts that can efficiently catalyze the oxygen evolution reaction (OER). However, how the OER activity of TMPs varies with the catalyst composition has not been systematically explored. Here, we report the alkaline OER electrolysis of a series of nanoparticulate phosphides containing different equimolar metal (M = Fe, Co, Ni) components. Notable trends in OER activity are observed, following the order of FeP < NiP < CoP < FeNiP < FeCoP < CoNiP < FeCoNiP, which indicate that the introduction of a secondary metal(s) to a mono-metallic TMP substantially boosts the OER performance. We ascribe the promotional effect to the enhanced oxidizing power of bi- and tri-metallic TMPs that can facilitate the formation of MOH and chemical adsorption of OH− groups, which are the rate-limiting steps for these catalysts according to our Tafel analysis. Remarkably, the tri-metallic FeCoNiP pre-catalyst exhibits exceptionally high apparent and intrinsic OER activities, requiring only 200 mV to deliver 10 mA cm−2 and showing a high turnover frequency (TOF) of ≥0.94 s−1 at the overpotential of 350 mV.Amori Lifeng Liu* ; I ; J.Y. Xu ; D. H. Xiong
Template-free synthesis of hollow iron phosphide-phosphate composite nanotubes for use as efficient and durable oxygen evolution catalysts Journal Article
ACS Applied Nano Materials, 2018.
@article{Xu2018bb,
title = {Template-free synthesis of hollow iron phosphide-phosphate composite nanotubes for use as efficient and durable oxygen evolution catalysts},
author = {Amori Lifeng Liu* ; I ; J.Y. Xu ; D. H. Xiong},
url = {https://pubs.acs.org/doi/abs/10.1021/acsanm.7b00122},
doi = {10.1021/acsanm.7b00122},
year = {2018},
date = {2018-01-29},
journal = {ACS Applied Nano Materials},
abstract = {The oxygen evolution reaction (OER) is a half-cell reaction that is of importance to many electrochemical processes, especially for electrochemical and photoelectrochemical water splitting. Developing efficient, durable, and low-cost OER electrocatalysts comprising Earth-abundant elements has been in the focus of electrocatalysis research. Herein, we report a cost-effective, scalable, and template-free approach to the fabrication of hollow iron phosphide–phosphate (FeP–FePxOy) composite nanotubes (NTs), which is realized by hydrothermal growth of iron oxy-hydroxide nanorods (NRs) and a subsequent postphosphorization treatment. The hollow interior of NTs results from the Kirkendall effect occurring upon phosphorization. When used to catalyze the OER in basic medium, the as-synthesized FeP–FePxOy composite NTs exhibit excellent catalytic activity, delivering the benchmark current density of 10 mA cm–2 at a low overpotential of 280 mV and showing a small Tafel slope of 48 mV dec–1 and a high turnover frequency of 0.10 s–1 at the overpotential of 350 mV. Moreover, the composite NTs demonstrate outstanding long-term stability, capable of catalyzing the OER at 10 mA cm–2 for 42 h without increasing the overpotential, holding substantial potential for use as active and inexpensive anode catalysts in water electrolyzers.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}The oxygen evolution reaction (OER) is a half-cell reaction that is of importance to many electrochemical processes, especially for electrochemical and photoelectrochemical water splitting. Developing efficient, durable, and low-cost OER electrocatalysts comprising Earth-abundant elements has been in the focus of electrocatalysis research. Herein, we report a cost-effective, scalable, and template-free approach to the fabrication of hollow iron phosphide–phosphate (FeP–FePxOy) composite nanotubes (NTs), which is realized by hydrothermal growth of iron oxy-hydroxide nanorods (NRs) and a subsequent postphosphorization treatment. The hollow interior of NTs results from the Kirkendall effect occurring upon phosphorization. When used to catalyze the OER in basic medium, the as-synthesized FeP–FePxOy composite NTs exhibit excellent catalytic activity, delivering the benchmark current density of 10 mA cm–2 at a low overpotential of 280 mV and showing a small Tafel slope of 48 mV dec–1 and a high turnover frequency of 0.10 s–1 at the overpotential of 350 mV. Moreover, the composite NTs demonstrate outstanding long-term stability, capable of catalyzing the OER at 10 mA cm–2 for 42 h without increasing the overpotential, holding substantial potential for use as active and inexpensive anode catalysts in water electrolyzers. -
2017
Santosh KumarVerma Baoshun Liu Xiujian Zhao Lifeng Liu Hong Li Zijuan Du Dehua Xiong
Inorganic Chem. Frontier, 5 , 2017.
@article{Du2017b,
title = {Low temperature hydrothermal synthesize delafossite CuCoO2 as an efficient electrocatalyst for the oxygen evolution reaction in alkaline solution},
author = {Santosh KumarVerma Baoshun Liu Xiujian Zhao Lifeng Liu Hong Li Zijuan Du Dehua Xiong},
url = {https://www.researchgate.net/publication/321028680_Low_temperature_hydrothermal_synthesize_delafossite_CuCoO2_as_an_efficient_electrocatalyst_for_the_oxygen_evolution_reaction_in_alkaline_solution [accessed Feb 01 2019].},
doi = {DOI:10.1039/C7QI00621G},
year = {2017},
date = {2017-11-14},
journal = {Inorganic Chem. Frontier},
volume = {5},
abstract = {Herein, we report the low temperature hydrothermal synthesis of delafossite CuCoO2 crystals at 100 °C. The structural, morphological and compositional characterization of CuCoO2 crystals were performed by powder X-ray diffraction (PXRD), field-emission scanning electron microscopy (FESEM) and X-ray photoelectron spectroscopy (XPS). Furthermore, the thermal stability of CuCoO2 in air and its electro-catalytic activity toward the oxygen evolution reaction (OER) have also been investigated.
(PDF) Low temperature hydrothermal synthesize delafossite CuCoO2 as an efficient electrocatalyst for the oxygen evolution reaction in alkaline solution.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Herein, we report the low temperature hydrothermal synthesis of delafossite CuCoO2 crystals at 100 °C. The structural, morphological and compositional characterization of CuCoO2 crystals were performed by powder X-ray diffraction (PXRD), field-emission scanning electron microscopy (FESEM) and X-ray photoelectron spectroscopy (XPS). Furthermore, the thermal stability of CuCoO2 in air and its electro-catalytic activity toward the oxygen evolution reaction (OER) have also been investigated.
(PDF) Low temperature hydrothermal synthesize delafossite CuCoO2 as an efficient electrocatalyst for the oxygen evolution reaction in alkaline solution.Santosh Kumar Verma Baoshun Liu Xiujian Zhao Lifeng Liu * Zijuan Du Dehua Xiong and Hong Li*
Inorganic Chem. Frontier, 2017.
@article{Du2017b,
title = {Low temperature hydrothermal synthesize delafossite CuCoO2 as an efficient electrocatalyst for the oxygen evolution reaction in alkaline solution},
author = {Santosh Kumar Verma Baoshun Liu Xiujian Zhao Lifeng Liu * Zijuan Du Dehua Xiong and Hong Li*},
url = {http://pubs.rsc.org/en/content/articlelanding/2018/qi/c7qi00621g#!divAbstract},
doi = {10.1039/C7QI00621G},
year = {2017},
date = {2017-11-13},
journal = {Inorganic Chem. Frontier},
abstract = {Herein, we report the low temperature hydrothermal synthesis of delafossite CuCoO2 crystals at 100 °C. The structural, morphological and compositional characterization of CuCoO2 crystals was performed by powder X-ray diffraction (PXRD), field-emission scanning electron microscopy (FESEM) and X-ray photoelectron spectroscopy (XPS). Furthermore, the thermal stability of CuCoO2 in air and its electro-catalytic activity toward the oxygen evolution reaction (OER) have also been investigated.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Herein, we report the low temperature hydrothermal synthesis of delafossite CuCoO2 crystals at 100 °C. The structural, morphological and compositional characterization of CuCoO2 crystals was performed by powder X-ray diffraction (PXRD), field-emission scanning electron microscopy (FESEM) and X-ray photoelectron spectroscopy (XPS). Furthermore, the thermal stability of CuCoO2 in air and its electro-catalytic activity toward the oxygen evolution reaction (OER) have also been investigated.Gao Song Xia Lifeng Liu* X F W G F W. Li D. H. Xiong
Self-supported Co-Ni-P ternary nanowire electrodes for highly efficient and stable electrocatalytic hydrogen evolution in acidic solution Journal Article
Catalysis Today, 287 , pp. 122, 2017.
@article{Li2017c,
title = {Self-supported Co-Ni-P ternary nanowire electrodes for highly efficient and stable electrocatalytic hydrogen evolution in acidic solution},
author = {Gao Song Xia Lifeng Liu* X F W G F W. Li D. H. Xiong},
url = {http://www.sciencedirect.com/science/article/pii/S0920586116305612},
year = {2017},
date = {2017-06-01},
journal = {Catalysis Today},
volume = {287},
pages = {122},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Xiong Wei Song Xu Lifeng Liu* D H F W G J Y W. Li X. F. Gao
Advanced Energy Materials, 2017.
@article{Li2017bb,
title = {Hydrothermal synthesis of monolithic Co3Se4 nanowire electrodes for oxygen evolution and overall water splitting with high efficiency and extraordinary catalytic stability},
author = {Xiong Wei Song Xu Lifeng Liu* D H F W G J Y W. Li X. F. Gao},
doi = {10.1002/aenm.201602579},
year = {2017},
date = {2017-05-10},
journal = {Advanced Energy Materials},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Lifeng Liu
Atomic layer deposition of electrocatalysts for use in fuel cells and electrolyzers Book Chapter
Chapter 5, Wiley-VCH Julien Bachmann Ed., 2017, (Chapter 5 in book Atomic Layer Deposition in Energy Conversion Applications).
@inbook{Liu2017,
title = {Atomic layer deposition of electrocatalysts for use in fuel cells and electrolyzers},
author = {Lifeng Liu},
year = {2017},
date = {2017-05-01},
edition = {Wiley-VCH Julien Bachmann Ed.},
chapter = {5},
note = {Chapter 5 in book Atomic Layer Deposition in Energy Conversion Applications},
keywords = {},
pubstate = {published},
tppubtype = {inbook}
}Lifeng Liu* D. H. Xiong W. Li
Chem Asian J., 12 , pp. 543, 2017.
@article{Xiong2017,
title = {Vertically-aligned porous Ni(OH)2 nanosheets supported on carbon paper with long-term oxygen evolution performance superior to RuO2 nanocatalysts},
author = {Lifeng Liu* D. H. Xiong W. Li},
url = {http://onlinelibrary.wiley.com/doi/10.1002/asia.201601590/full},
year = {2017},
date = {2017-02-07},
journal = {Chem Asian J.},
volume = {12},
pages = {543},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Thalluri Xu Li Fu Liu* S M J Y W X L L F D. H. Xiong Q. Q. Zhang
Chemistry – A European Journal, 2017.
@article{Xiong2017b,
title = {One-step fabrication of monolithic electrodes comprising Co9S8 particles supported on cobalt foam for efficient and durable oxygen evolution reaction},
author = {Thalluri Xu Li Fu Liu* S M J Y W X L L F D. H. Xiong Q. Q. Zhang},
doi = {10.1002/chem.201701391},
year = {2017},
date = {2017-02-06},
journal = {Chemistry – A European Journal},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Li Li Fu Cerqueira Alpuim Lifeng Liu W J J X L M F P D.H. Xiong Q.Q. Zhang
Atomic-layer-deposited ultrafine MoS2 nanocrystals on cobalt foam for efficient and stable electrochemical oxygen evolution Journal Article
Nanoscale, 9 , pp. 2711, 2017.
@article{Xiong2017bb,
title = {Atomic-layer-deposited ultrafine MoS2 nanocrystals on cobalt foam for efficient and stable electrochemical oxygen evolution},
author = {Li Li Fu Cerqueira Alpuim Lifeng Liu W J J X L M F P D.H. Xiong Q.Q. Zhang},
url = {http://pubs.rsc.org/en/content/articlelanding/2017/nr/c7nr00140a#!divAbstract},
year = {2017},
date = {2017-01-30},
journal = {Nanoscale},
volume = {9},
pages = {2711},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Xiong Xia Liu Song Xu Thalluri Fu Lifeng Liu* D H F J W G J Y S M X L W. Li X. F. Gao
Vapor-solid synthesis of monolithic single-crystalline CoP nanowire electrodes for efficient and robust water electrolysis Journal Article
Chem. Sci, 8 , pp. 2952, 2017.
@article{Li2017bc,
title = {Vapor-solid synthesis of monolithic single-crystalline CoP nanowire electrodes for efficient and robust water electrolysis},
author = {Xiong Xia Liu Song Xu Thalluri Fu Lifeng Liu* D H F J W G J Y S M X L W. Li X. F. Gao},
url = {http://pubs.rsc.org/en/content/articlelanding/2017/sc/c6sc05167g#!divAbstract},
year = {2017},
date = {2017-01-23},
journal = {Chem. Sci},
volume = {8},
pages = {2952},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Lu Lifeng Liu Liu Sun Yin Oswald Ding Schmidt X L L X X L Y S F O G Shaozhuan Huang* Lin Zhang*
Tunable pseudocapacitance in 3D Ti3+ self-doped TiO2 nanomembranes enabling superior lithium storage performance Journal Article
ACS Nano, 11 , pp. 821, 2017.
@article{Huang2017,
title = {Tunable pseudocapacitance in 3D Ti3+ self-doped TiO2 nanomembranes enabling superior lithium storage performance},
author = {Lu Lifeng Liu Liu Sun Yin Oswald Ding Schmidt X L L X X L Y S F O G Shaozhuan Huang* Lin Zhang*},
url = {https://www.researchgate.net/publication/311948019_Tunable_Pseudocapacitance_in_3D_TiO2-d_Nanomembranes_Enabling_Superior_Lithium_Storage_Performance},
year = {2017},
date = {2017-01-01},
journal = {ACS Nano},
volume = {11},
pages = {821},
keywords = {},
pubstate = {published},
tppubtype = {article}
} -
2016
Lifeng Liu* M. Kundu
Sci. Adv. Today, 2 , pp. 25252, 2016.
@article{Kundu2016,
title = {Easy fabrication of nanohybrids comprising Co3O4 nanoparticles on electrospun carbon nanofibers for use as binder-free lithium-ion battery anodes},
author = {Lifeng Liu* M. Kundu},
url = {https://www.researchgate.net/publication/311456682_Easy_fabrication_of_nanohybrids_comprising_Co3O4_nanoparticles_on_electrospun_carbon_nanofibers_for_use_as_binder-free_lithium-ion_battery_anodes},
year = {2016},
date = {2016-12-01},
journal = {Sci. Adv. Today},
volume = {2},
pages = {25252},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Wang Lifeng Liu* X G D. H. Xiong W. Li
Surface passivation of hematite photoanodes with a phosphorus overlayer for enhanced photoelectrochemical water oxidation Journal Article
Nanotechnology, 27 , pp. 375401, 2016.
@article{Xiong2016b,
title = {Surface passivation of hematite photoanodes with a phosphorus overlayer for enhanced photoelectrochemical water oxidation},
author = {Wang Lifeng Liu* X G D. H. Xiong W. Li},
url = {https://www.researchgate.net/publication/305822737_Passivation_of_hematite_nanorod_photoanodes_with_a_phosphorus_overlayer_for_enhanced_photoelectrochemical_water_oxidation},
year = {2016},
date = {2016-09-01},
journal = {Nanotechnology},
volume = {27},
pages = {375401},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Wang Xiong Huang Guo Bao Lifeng Liu* X G D H P P W G X Q W. Li X. F. Gao
From water reduction to oxidation: Janus Co-Ni-P nanowires as high-efficiency and ultrastable electrocatalysts for over 3000 h water splitting Journal Article
Journal of Power Sources, 330 , pp. 156, 2016.
@article{Li2016b,
title = {From water reduction to oxidation: Janus Co-Ni-P nanowires as high-efficiency and ultrastable electrocatalysts for over 3000 h water splitting},
author = {Wang Xiong Huang Guo Bao Lifeng Liu* X G D H P P W G X Q W. Li X. F. Gao},
url = {https://www.researchgate.net/publication/307967490_From_water_reduction_to_oxidation_Janus_Co-Ni-P_nanowires_as_high-efficiency_and_ultrastable_electrocatalysts_for_over_3000_h_water_splitting},
year = {2016},
date = {2016-09-01},
journal = {Journal of Power Sources},
volume = {330},
pages = {156},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Kundu Attila Goren Maria Silva Lifeng Liu Senentxu Lanceros-Mendez* M Joao Nunes-Pereira Manab
Effect of filler type on poly(vinylidene fluoride-co-trifluoroethylene) based composite separator membranes on Li-ion battery performance Journal Article
Composites Part B, 96 , pp. 94-102, 2016.
@article{Nunes-Pereira2016,
title = {Effect of filler type on poly(vinylidene fluoride-co-trifluoroethylene) based composite separator membranes on Li-ion battery performance},
author = {Kundu Attila Goren Maria Silva Lifeng Liu Senentxu Lanceros-Mendez* M Joao Nunes-Pereira Manab},
url = {https://www.researchgate.net/publication/301719540_Optimization_of_filler_type_within_polyvinylidene_fluoride-co-trifluoroethylene_composite_separator_membranes_for_improved_lithium-ion_battery_performance},
year = {2016},
date = {2016-07-01},
journal = {Composites Part B},
volume = {96},
pages = {94-102},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Li Lifeng Liu* W Dehua Xiong X. G. Wang
Facile synthesis of iron phosphide nanorods for efficient and durable electrochemical oxygen evolution Journal Article
Chem. Commun, 52 , pp. 8711-8714, 2016.
@article{Xiong2016b,
title = {Facile synthesis of iron phosphide nanorods for efficient and durable electrochemical oxygen evolution},
author = {Li Lifeng Liu* W Dehua Xiong X. G. Wang},
url = {https://www.researchgate.net/publication/303994209_Facile_synthesis_of_iron_phosphide_nanorods_for_efficient_and_durable_electrochemical_oxygen_evolution},
year = {2016},
date = {2016-06-01},
journal = {Chem. Commun},
volume = {52},
pages = {8711-8714},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Xiong Lifeng Liu* D H X. G. Wang W. Li
Fast fabrication of self-supported porous nickel phosphide foam for efficient, durable oxygen evolution and overall water splitting Journal Article
J. Mater. Chem, 4 , pp. 5639, 2016.
@article{Wang2016,
title = {Fast fabrication of self-supported porous nickel phosphide foam for efficient, durable oxygen evolution and overall water splitting},
author = {Xiong Lifeng Liu* D H X. G. Wang W. Li},
year = {2016},
date = {2016-04-01},
journal = {J. Mater. Chem},
volume = {4},
pages = {5639},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Xiong Petrovykh Lifeng Liu* D H D Y X. G. Wang W. Li
Adv. Funct. Mater., 26 , pp. 4067-4077, 2016.
@article{Wang2016b,
title = {Efficient and stable overall electrochemical water splitting using self-supported carbon paper electrodes integrated with bi-functional nickel phosphide catalysts},
author = {Xiong Petrovykh Lifeng Liu* D H D Y X. G. Wang W. Li},
url = {https://www.researchgate.net/publication/301230094_Bifunctional_Nickel_Phosphide_Nanocatalysts_Supported_on_Carbon_Fiber_Paper_for_Highly_Efficient_and_Stable_Overall_Water_Splitting},
year = {2016},
date = {2016-04-01},
journal = {Adv. Funct. Mater.},
volume = {26},
pages = {4067-4077},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Xiong Lifeng Liu* D H W. Li X. G. Wang
Efficient and durable electrochemical hydrogen evolution using cocoon-like MoS2 with preferentially exposed edges Journal Article
Int. J. Hydrogen Energy 2016, 41, 9344-9354, 41 , pp. 9344-9354, 2016.
@article{Li2016c,
title = {Efficient and durable electrochemical hydrogen evolution using cocoon-like MoS2 with preferentially exposed edges},
author = {Xiong Lifeng Liu* D H W. Li X. G. Wang},
url = {https://www.researchgate.net/publication/301759885_Efficient_and_durable_electrochemical_hydrogen_evolution_using_cocoon-like_MoS2_with_preferentially_exposed_edges},
year = {2016},
date = {2016-04-01},
journal = {Int. J. Hydrogen Energy 2016, 41, 9344-9354},
volume = {41},
pages = {9344-9354},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Lifeng Liu Wang Zeng Xie Jin Zhang H Y W J C H * Z C. Y. Wu W. Huang
Synthesis and phase transformation of hierarchical structure LiFePO4 for Li-ion Battery Journal Article
CrystEngComm, 18 , pp. 7707, 2016.
@article{Wu2016,
title = {Synthesis and phase transformation of hierarchical structure LiFePO4 for Li-ion Battery},
author = {Lifeng Liu Wang Zeng Xie Jin Zhang H Y W J C H * Z C. Y. Wu W. Huang},
url = {https://www.researchgate.net/publication/305423204_Facile_synthesis_of_hierarchical_b-LiFePO4_and_its_phase_transformation_to_electrochemically_active_a-LiFePO4_for_li-ion_battery},
year = {2016},
date = {2016-01-01},
journal = {CrystEngComm},
volume = {18},
pages = {7707},
keywords = {},
pubstate = {published},
tppubtype = {article}
} -
2015
Lifeng Liu
Efficient water oxidation using α-Fe2O3 thin films conformally coated on vertically aligned titania nanotube arrays by atomic layer deposition Journal Article
Mater. Lett., 159 , pp. 284-288, 2015.
@article{Liu2015,
title = {Efficient water oxidation using α-Fe2O3 thin films conformally coated on vertically aligned titania nanotube arrays by atomic layer deposition},
author = {Lifeng Liu},
url = {https://www.researchgate.net/publication/280832195_Efficient_water_oxidation_using_a-Fe2O3_thin_films_conformally_coated_on_vertically_aligned_titania_nanotube_arrays_by_atomic_layer_deposition},
year = {2015},
date = {2015-11-01},
journal = {Mater. Lett.},
volume = {159},
pages = {284-288},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Rodriguez Fatima Cerqueira Petrovykh Lifeng Liu Kolen’ko C M D Y Y V Enrique Carbo-Argibay X.Q. Bao
Up-scaling the Synthesis of Cu2O Submicron Particles with Controlled Morphologies for Solar H2 Evolution from Water Journal Article
J. Colloid. Interf. Sci., 456 , pp. 219-227, 2015.
@article{Carbo-Argibay2015,
title = {Up-scaling the Synthesis of Cu2O Submicron Particles with Controlled Morphologies for Solar H2 Evolution from Water},
author = {Rodriguez Fatima Cerqueira Petrovykh Lifeng Liu Kolen’ko C M D Y Y V Enrique Carbo-Argibay X.Q. Bao},
url = {https://www.researchgate.net/publication/278404169_Up-scaling_the_Synthesis_of_Cu2O_Submicron_Particles_with_Controlled_Morphologies_for_Solar_H2_Evolution_from_Water},
year = {2015},
date = {2015-10-01},
journal = {J. Colloid. Interf. Sci.},
volume = {456},
pages = {219-227},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Xiong Qin Yan* J * Y C L Y. Chen Lifeng Liu
Porous Si nanowires from cheap metallurgical silicon stabilized by surface oxide layer for lithium ion batteries Journal Article
Adv. Energy Mater, 2015.
@article{Chen2015,
title = {Porous Si nanowires from cheap metallurgical silicon stabilized by surface oxide layer for lithium ion batteries},
author = {Xiong Qin Yan* J * Y C L Y. Chen Lifeng Liu},
url = {https://www.researchgate.net/publication/282749354_Porous_Si_Nanowires_from_Cheap_Metallurgical_Silicon_Stabilized_by_a_Surface_Oxide_Layer_for_Lithium_Ion_Batteries},
doi = {10.1002/adfm.201503206},
year = {2015},
date = {2015-10-01},
journal = {Adv. Energy Mater},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Goren Silva Lifeng Liu Costa Lanceros-Mendez A M M C M S R. E. Sousa M. Kundu
Poly(vinylidene fluoride-co-chlorotrifluoroethylene) (PVDF-CTFE) lithium-ion battery separator membranes prepared by phase inversion Journal Article
RSC Adv, 5 , pp. 90428-90436, 2015.
@article{Sousa2015,
title = {Poly(vinylidene fluoride-co-chlorotrifluoroethylene) (PVDF-CTFE) lithium-ion battery separator membranes prepared by phase inversion},
author = {Goren Silva Lifeng Liu Costa Lanceros-Mendez A M M C M S R. E. Sousa M. Kundu},
url = {https://www.researchgate.net/publication/283243523_Polyvinylidene_fluoride-co-chlorotrifluoroethylene_PVDF-CTFE_lithium-ion_battery_separator_membranes_prepared_by_phase_inversion},
year = {2015},
date = {2015-10-01},
journal = {RSC Adv},
volume = {5},
pages = {90428-90436},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Alpuim Stroppa Guldris Costa Fonseca Gaspar Jin Lifeng Liu* P D N M H J C H X.Q. Bao D. Petrovykh
Amorphous molybdenum oxysulfide modified p-type silicon microwire arrays for efficient photoelectrochemical water splitting Journal Article
Nano Energy, 16 , pp. 130-142, 2015.
@article{Bao2015b,
title = {Amorphous molybdenum oxysulfide modified p-type silicon microwire arrays for efficient photoelectrochemical water splitting},
author = {Alpuim Stroppa Guldris Costa Fonseca Gaspar Jin Lifeng Liu* P D N M H J C H X.Q. Bao D. Petrovykh},
url = {https://www.researchgate.net/publication/280832158_Amorphous_oxygen-rich_molybdenum_oxysulfide_Decorated_p-type_silicon_microwire_Arrays_for_efficient_photoelectrochemical_water_reduction},
year = {2015},
date = {2015-09-02},
journal = {Nano Energy},
volume = {16},
pages = {130-142},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Paz Carbo-Argibay Rodriguez-Abreu Lifeng Liu Kovnir Kolen’ko E E C K Y V .L. Lado X.G. Wang
Design and synthesis of a novel highly active Al-Ni-P foam electrode for hydrogen evolution reaction Journal Article
ACS Catalysis, 5 , pp. 6503, 2015.
@article{Lado2015c,
title = {Design and synthesis of a novel highly active Al-Ni-P foam electrode for hydrogen evolution reaction},
author = {Paz Carbo-Argibay Rodriguez-Abreu Lifeng Liu Kovnir Kolen’ko E E C K Y V .L. Lado X.G. Wang},
url = {https://www.researchgate.net/publication/282512404_Design_and_Synthesis_of_Highly_Active_Al-Ni-P_Foam_Electrode_for_Hydrogen_Evolution_Reaction},
year = {2015},
date = {2015-09-02},
journal = {ACS Catalysis},
volume = {5},
pages = {6503},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Bao Kovnir Lifeng Liu X Q K X.G. Wang Y.V. Kolen’ko
One-step synthesis of self-supported nickel phosphide nanosheet array cathodes for efficient electrocatalytic H2 generation Journal Article
Angew. Chem. Int. Ed. 2015, 54 , pp. 8188, 2015.
@article{Wang2015b,
title = {One-step synthesis of self-supported nickel phosphide nanosheet array cathodes for efficient electrocatalytic H2 generation},
author = {Bao Kovnir Lifeng Liu X Q K X.G. Wang Y.V. Kolen’ko},
url = {https://www.researchgate.net/publication/277560898_One-Step_Synthesis_of_Self-Supported_Nickel_Phosphide_Nanosheet_Array_Cathodes_for_Efficient_Electrocatalytic_Hydrogen_Generation},
year = {2015},
date = {2015-06-06},
journal = {Angew. Chem. Int. Ed. 2015},
volume = {54},
pages = {8188},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Si Lifeng Liu Yan Oswald Schmidt W P C L S O G X.Y. Lu J.W. Deng
Trilayered Pd/MnOx/Pd Nanomembranes as Cathode Materials for Rechargeable Li-O2 Batteries with Extremely Low Charge Potential Journal Article
Adv. Sci. 2015, 51 , pp. 1500113, 2015.
@article{Lu2015,
title = {Trilayered Pd/MnOx/Pd Nanomembranes as Cathode Materials for Rechargeable Li-O2 Batteries with Extremely Low Charge Potential},
author = {Si Lifeng Liu Yan Oswald Schmidt W P C L S O G X.Y. Lu J.W. Deng},
url = {https://www.researchgate.net/publication/277337423_High-Performance_Li-O2_Batteries_with_Trilayered_PdMnOxPd_Nanomembranes?_iepl%5BviewId%5D=WCzXbhkWBOatiJM4GwmTuoZF&_iepl%5Bcontexts%5D%5B0%5D=timeline&_iepl%5Bdata%5D%5BactivityData%5D%5BactivityId%5D=277337423&_iepl%5Bdata%5D%5BactivityData%5D%5BactivityType%5D=Publication&_iepl%5Bdata%5D%5BactivityData%5D%5BactivityTimestamp%5D=1430438400&_iepl%5Bdata%5D%5BviewType%5D=self&_iepl%5BinteractionType%5D=publicationClickThrough},
year = {2015},
date = {2015-05-01},
journal = {Adv. Sci. 2015},
volume = {51},
pages = {1500113},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Pedro Alpuim Lifeng Liu * Xiao-Qing Bao M. Fatima Cerqueira
Silicon Nanowire Arrays Coupled with Cobalt Phosphide Spheres as A Low-Cost Photocathode for Efficient Solar Hydrogen Evolution Journal Article
Chem. Commun, 51 , pp. 10742-17045, 2015.
@article{Bao2015b,
title = {Silicon Nanowire Arrays Coupled with Cobalt Phosphide Spheres as A Low-Cost Photocathode for Efficient Solar Hydrogen Evolution},
author = {Pedro Alpuim Lifeng Liu * Xiao-Qing Bao M. Fatima Cerqueira},
url = {http://pubs.rsc.org/en/content/articlelanding/2015/cc/c5cc02331a#!divAbstract},
year = {2015},
date = {2015-05-01},
journal = {Chem. Commun},
volume = {51},
pages = {10742-17045},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Lifeng Liu* M. Kundu
Binder-free electrodes consisting of porous NiO nanofibers directly electrospun on nickel foam for high-rate supercapacitors Journal Article
Mater. Lett., 144 , pp. 114, 2015.
@article{Kundu2015b,
title = {Binder-free electrodes consisting of porous NiO nanofibers directly electrospun on nickel foam for high-rate supercapacitors},
author = {Lifeng Liu* M. Kundu},
url = {https://www.researchgate.net/publication/271773568_Binder-free_electrodes_consisting_of_porous_NiO_nanofibers_directly_electrospun_on_nickel_foam_for_high-rate_supercapacitors},
year = {2015},
date = {2015-04-01},
journal = {Mater. Lett.},
volume = {144},
pages = {114},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Lifeng Liu* X.G. Wang Y.V. Ko’lenko
Chem. Commun, 51 , pp. 6738, 2015, (Highlighted as back cover).
@article{Wang2015b,
title = {Direct solvothermal phosphorization of nickel foam to fabricate Ni2P-nanorods/Ni integrated electrodes for efficient electrocatalytic hydrogen evolution},
author = {Lifeng Liu* X.G. Wang Y.V. Ko’lenko},
url = {https://www.researchgate.net/publication/273325434_Direct_solvothermal_phosphorization_of_nickel_foam_to_fabricate_integrated_Ni2P-nanorodsNi_electrodes_for_efficient_electrocatalytic_hydrogen_evolution},
year = {2015},
date = {2015-03-06},
journal = {Chem. Commun},
volume = {51},
pages = {6738},
note = {Highlighted as back cover},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Lifeng Liu M. Kundu
Electrospun porous nickel oxide nanofibers for high-performance electrochemical energy storage Journal Article
Sci. Lett. J., 4 , pp. 123, 2015.
@article{Kundu2015b,
title = {Electrospun porous nickel oxide nanofibers for high-performance electrochemical energy storage},
author = {Lifeng Liu M. Kundu},
url = {https://www.researchgate.net/publication/269687837_Electrospun_porous_nickel_oxide_nanofibers_for_high-performance_electrochemical_energy_storage},
year = {2015},
date = {2015-02-01},
journal = {Sci. Lett. J.},
volume = {4},
pages = {123},
keywords = {},
pubstate = {published},
tppubtype = {article}
} -
2014
X.Q. Bao Lifeng Liu*
Improved photo-stability of silicon nanobelt arrays by atomic layer deposition for efficient photocatalytic hydrogen evolution Journal Article
J. Power Sources, 268 , pp. 677, 2014.
@article{Bao2014b,
title = {Improved photo-stability of silicon nanobelt arrays by atomic layer deposition for efficient photocatalytic hydrogen evolution},
author = {X.Q. Bao Lifeng Liu*},
url = {https://www.researchgate.net/publication/263896526_Improved_photo-stability_of_silicon_nanobelt_arrays_by_atomic_layer_deposition_for_efficient_photocatalytic_hydrogen_evolution},
year = {2014},
date = {2014-12-03},
journal = {J. Power Sources},
volume = {268},
pages = {677},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Sun Deng Baunack Oswald Lifeng Liu Yan Schmidt X L J W S S C L * O G X.H. Liu * W.P. Si
Free-Standing Fe2O3 Nanomembranes as Anodes for Li-Ion Batteries with Long Cycling Life and High-Rate Capability Journal Article
Sci. Reports, 4 , pp. 7452, 2014.
@article{Liu2014b,
title = {Free-Standing Fe2O3 Nanomembranes as Anodes for Li-Ion Batteries with Long Cycling Life and High-Rate Capability},
author = {Sun Deng Baunack Oswald Lifeng Liu Yan Schmidt X L J W S S C L * O G X.H. Liu * W.P. Si},
url = {https://www.researchgate.net/publication/269774870_Free-standing_Fe2O3_nanomembranes_enabling_ultra-long_cycling_life_and_high_rate_capability_for_Li-ion_batteries},
year = {2014},
date = {2014-12-03},
journal = {Sci. Reports},
volume = {4},
pages = {7452},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Liu Deng Xi Lifeng Liu Yan Schmidt X H J W L X C L O G X.L. Sun W.P. Si
Multifunctional nickel/oxide hybrid nanomembranes as anode materials for high-performance Li-ion batteries Journal Article
Nano Energy, 9 , pp. 168, 2014.
@article{Sun2014b,
title = {Multifunctional nickel/oxide hybrid nanomembranes as anode materials for high-performance Li-ion batteries},
author = {Liu Deng Xi Lifeng Liu Yan Schmidt X H J W L X C L O G X.L. Sun W.P. Si},
url = {https://www.researchgate.net/publication/263277902_Multifunctional_NiNiO_hybrid_nanomembranes_as_anode_materials_for_high-rate_Li-ion_batteries},
year = {2014},
date = {2014-10-02},
journal = {Nano Energy},
volume = {9},
pages = {168},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Lifeng Liu Si Oswald Xi Kundu Ma Gemming Baunack Ding Yan Schmidt W P S L X M G Z T S F C L O G L. Zhang* J.W. Deng
Hierarchically designed SiOx/SiOy bilayer nanomembranes as stable anodes for lithium ion batteries Journal Article
Adv. Mater, 26 , pp. 4527, 2014.
@article{Sun2014bb,
title = {Hierarchically designed SiOx/SiOy bilayer nanomembranes as stable anodes for lithium ion batteries},
author = {Lifeng Liu Si Oswald Xi Kundu Ma Gemming Baunack Ding Yan Schmidt W P S L X M G Z T S F C L O G L. Zhang* J.W. Deng},
url = {https://www.researchgate.net/publication/262024171_Hierarchically_Designed_SiOxSiOy_Bilayer_Nanomembranes_as_Stable_Anodes_for_Lithium_Ion_Batteries},
year = {2014},
date = {2014-07-05},
journal = {Adv. Mater},
volume = {26},
pages = {4527},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Bao * X Q Lifeng Liu
Silicon nanowires fabricated by porous gold thin film assisted chemical etching and their photoelectrochemical properties Journal Article
Mater. Lett., 125 , pp. 28-31, 2014.
@article{Liu2014bb,
title = {Silicon nanowires fabricated by porous gold thin film assisted chemical etching and their photoelectrochemical properties},
author = {Bao * X Q Lifeng Liu},
url = {https://www.researchgate.net/publication/261564568_Silicon_nanowires_fabricated_by_porous_gold_thin_film_assisted_chemical_etching_and_their_photoelectrochemical_properties},
year = {2014},
date = {2014-06-01},
journal = {Mater. Lett.},
volume = {125},
pages = {28-31},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Chen Si Deng Oswald Lifeng Liu Schmidt * Y W P J W S O G X.L. Sun C.L. Yan
Three-dimensionally curved NiO nanomembranes as ultra high rate capability anodes for Li-ion batteries with long cycle life Journal Article
Nanoscale, 6 , pp. 2097-2101, 2014.
@article{Sun2014c,
title = {Three-dimensionally curved NiO nanomembranes as ultra high rate capability anodes for Li-ion batteries with long cycle life},
author = {Chen Si Deng Oswald Lifeng Liu Schmidt * Y W P J W S O G X.L. Sun C.L. Yan},
url = {https://www.researchgate.net/publication/259651917_Ordered_arrays_of_tilted_silicon_nanobelts_with_enhanced_solar_hydrogen_evolution_performance},
year = {2014},
date = {2014-01-02},
journal = {Nanoscale},
volume = {6},
pages = {2097-2101},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Xingsen Gao Lifeng Liu
Fabrication of Bi2Fe4O9 nanotubes decorated with iron-rich nanorings by Rayleigh instability induced sol-gel synthesis in porous anodic alumina Journal Article
J. Nanosci. Lett., 4 , pp. 6, 2014.
@article{Liu2014c,
title = {Fabrication of Bi2Fe4O9 nanotubes decorated with iron-rich nanorings by Rayleigh instability induced sol-gel synthesis in porous anodic alumina},
author = {Xingsen Gao Lifeng Liu},
url = {https://www.researchgate.net/publication/257920986_Fabrication_of_Bi2Fe4O9_nanotubes_decorated_with_iron-rich_nanorings_by_Rayleigh_instability_induced_sol-gel_synthesis_in_porous_anodic_alumina},
year = {2014},
date = {2014-01-01},
journal = {J. Nanosci. Lett.},
volume = {4},
pages = {6},
keywords = {},
pubstate = {published},
tppubtype = {article}
} -
2013
Lifeng Liu
Nano-aggregates of cobalt nickel oxysulfide as a high-performance electrode material for supercapacitors Journal Article
Nanscale, 5 , pp. 11615, 2013.
@article{Liu2013b,
title = {Nano-aggregates of cobalt nickel oxysulfide as a high-performance electrode material for supercapacitors},
author = {Lifeng Liu},
url = {https://www.researchgate.net/publication/257814179_Nano-aggregates_of_cobalt_nickel_oxysulfide_as_a_high-performance_electrode_material_for_supercapacitors},
year = {2013},
date = {2013-10-01},
journal = {Nanscale},
volume = {5},
pages = {11615},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Lifeng Liu Manab Kundu
Direct growth of mesoporous MnO2 nanosheet arrays on nickel foam current collectors for high-performance pseudocapacitors Journal Article
J. Power Sources, (243), pp. 676, 2013.
@article{Kundu2013,
title = {Direct growth of mesoporous MnO2 nanosheet arrays on nickel foam current collectors for high-performance pseudocapacitors},
author = {Lifeng Liu Manab Kundu},
url = {https://www.researchgate.net/publication/249326281_Direct_growth_of_mesoporous_MnO2_nanosheet_arrays_on_nickel_foam_current_collectors_for_high-performance_pseudocapacitors},
year = {2013},
date = {2013-08-01},
journal = {J. Power Sources},
number = {243},
pages = {676},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Woo Lee Mato Knez Lifeng Liu Daoai Wang Lianbing Zhang
Novel three-dimensional nanoporous alumina as a template for hierarchical TiO2 nanotube arrays Journal Article
Small, 9 , pp. 1025, 2013.
@article{Wang2013b,
title = {Novel three-dimensional nanoporous alumina as a template for hierarchical TiO2 nanotube arrays},
author = {Woo Lee Mato Knez Lifeng Liu Daoai Wang Lianbing Zhang},
url = {https://www.researchgate.net/publication/236010667_Novel_Three-Dimensional_Nanoporous_Alumina_as_a_Template_for_Hierarchical_TiO2_Nanotube_Arrays},
year = {2013},
date = {2013-04-01},
journal = {Small},
volume = {9},
pages = {1025},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Lifeng Liu
Porous Co16S16O96 nanosheets as a new electrode material for use in supercapacitors Journal Article
J. Power Sources, 239 , pp. 24, 2013.
@article{Liu2013b,
title = {Porous Co16S16O96 nanosheets as a new electrode material for use in supercapacitors},
author = {Lifeng Liu},
url = {https://www.researchgate.net/publication/236751704_Porous_Co16S16O96_nanosheets_as_a_new_electrode_material_for_use_in_supercapacitors},
year = {2013},
date = {2013-03-01},
journal = {J. Power Sources},
volume = {239},
pages = {24},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
GROUP LEADER
THE TEAM
Jonathan Ruiz
Research Fellow
Haiyan Jin
Research Fellow
Zhixin Tai
Research Fellow
Bruno Xavier
Associate
Isilda Amorim
Associate
Yajie Liu
Associate
Yue Li
Associate
Zhipeng Yu
Associate
Ziyu Lu
Associate
Ana Araújo
Research Assistant
Former Group Members
Junyuan Xu (Research Fellow)
Thomas LaTempa (Postdoc)
Teasha Fitztham (Intern from MIT)
Manab Kundu (Postdoc researcher, Norwegian University of Science and Technology, Norway)
Justin Bao (Institute of Optics and Electronics, Chinese Academy of Sciences)
Xiaoguang Wang (Taiyuan Institute of Technology, China)
Wei Li (Postdoc researcher, Utha State Unviersity, USA)
Dehua Xiong (Wuhan University of Technology, China)
Nanomaterials for Energy Storage and Conversion Research Group
The Nanomaterials for Energy Storage and Conversion group conducts both fundamental and application-oriented research on new nanomaterials and nanostructures that can be used for energy storage and conversion. Particular emphasis is at the moment placed on the preparation of hollow, porous nanostructures and ordered nanowire/nanotube arrays of various inorganic materials, which not only possess large surface to volume ratios but also facilitate the transportation of electrolytes/ions/charge carriers. Comprehensive structural/compositional characterization in conjunction with studies of photoelectric, electrochemical and catalytic properties are carried out in order to elucidate the structure-property relation, to get a fundamental understanding about the underlying physics and chemistry in energy storage and conversion processes, and in turn to help materials design and optimization. Our research activities are primarily focused on the following areas:
Electrocatalysis. The group is committed to developing Pt-free electrocatalysts for use in hydrogen/oxygen evolution, oxygen reduction, and small molecule oxidation reactions.
Solar fuel production. Research efforts are devoted to: 1) Nanoatructured photocathodes and photoanodes; 2) Coupling of semiconductor photoelectrodes with HER or OER catalysts; 3) Improving lifetime of photoelectrodes.
Energy storage. The group is working on 1) Fabrication of hybrid/composite nanostructures; 2) Large-scale synthesis of porous/hollow nanostructures for use as electrode materials in Li-ion/Na-ion batteries and supercapacitors; 3) Flexible energy storage devices.
ON GOING RESEARCH PROJECTS
The project aims to develop efficient, low-cost and durable photocathodes for water reduction (solar H2 evolution) and photoanodes for water oxidation (solar O2 evolution). The research will be focused on developing robust nanowire arrays decorated with non-precious earth-abundant HER or OER catalysts. Optimized surface protection strategy will be employed to improve the operation lifetime of the photoelectrodes.
Hydrogen/oxygen evolution (HER/OER) and oxygen reduction (ORR) are important half-cell reactions in many electrochemical devices such as photoelectrochemical cells (PEC) and fuel cells. Pt-group metals are thus far the most efficient and commonly used catalysts for these reactions. However, for large-scale deployment of PEC cells and widespread use of fuel cells, it is apparently impractical to use Pt-group metals to catalyze these reactions because of the high cost and the scarcity of Pt. The project is aiming at developing non-precious earth-abundant catalysts for use as an alternative to Pt. Presently, the research is focused on the development of nanostructured transition metal oxides and sulfides.
The group aims to develop low-cost nanostructured hybrid solar cells using the Si nanowire or TiO2 nanotube arrays fabricated by the group. In addition, the group is also keen on lead iodide perovskite solar cells and their derivatives.
The project presently aims to develop binder-free electrodes for use as either anodes in lithium-ion batteries or electrodes in supercapcitors. The emphasis is placed on the development of metal oxide/sulfide nanostructures and carbon/oxide hybrids.
For future practical applications, large-scale and cost-effective synthesis of nanomaterials for use in energy storage and conversion is highly desired. The project aims to develop low-cost and scalable approaches to the fabrication of porous/hollow/core-shell nanostructures which can find applications in energy storage and conversion devices.
PUBLICATIONS
-
2020
Yu; Xu; Li; Wei; Zhang; Li; Miao; Araujo; Wang; Faria; Liu;* Lifeng Z P J Y Y F B N Y H W A Z C J L Y Y Liu*
J. Mater. Chem. A, 2020.
@article{Yu2020,
title = {Ultrafine oxygen vacancy-rich iridium oxide nanoclusters supported on high-surface-area, acid-stable titanium substrate for efficient and durable water oxidation at high current densities in acidic media},
author = {Yu; Xu; Li; Wei; Zhang; Li; Miao; Araujo; Wang; Faria; Liu;* Lifeng Z P J Y Y F B N Y H W A Z C J L Y Y Liu*},
editor = {Mater. Chem. J A},
doi = {10.1039/D0TA07093A},
year = {2020},
date = {2020-11-02},
journal = {J. Mater. Chem. A},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Yu; Xu; Li; Lifeng Z P J Y Y Liu*
Easy preparation of multifunctional ternary PdNiP/C catalysts for small organic molecule electro-oxidation with enhanced catalytic performance Journal Article Forthcoming
Journal of Energy Chemistry, Forthcoming.
@article{Liu*2020,
title = {Easy preparation of multifunctional ternary PdNiP/C catalysts for small organic molecule electro-oxidation with enhanced catalytic performance},
author = {Yu; Xu; Li; Lifeng Z P J Y Y Liu*},
editor = {Journal Energy of Chemistry},
doi = {https://doi.org/10.1016/j.jechem.2020.10.016},
year = {2020},
date = {2020-11-01},
journal = {Journal of Energy Chemistry},
keywords = {},
pubstate = {forthcoming},
tppubtype = {article}
}Yang; Xu; Wang; Yu; Bin; Tian; Fang; Liu; Qiao; Lifeng Liu*; B B J Y J Z P D T T X N Y L B H Liu
Amorphous phosphatized ruthenium-iron bimetallic nanoclusters with Pt-like activity for hydrogen evolution reaction Journal Article
Applied Catalysis B - Environmental, 2020.
@article{Liu2020,
title = {Amorphous phosphatized ruthenium-iron bimetallic nanoclusters with Pt-like activity for hydrogen evolution reaction},
author = {Yang; Xu; Wang; Yu; Bin; Tian; Fang; Liu; Qiao; Lifeng Liu*; B B J Y J Z P D T T X N Y L B H Liu},
editor = {Applied Catalysis B - Environmental},
doi = {10.1016/j.apcatb.2020.119583},
year = {2020},
date = {2020-10-14},
journal = {Applied Catalysis B - Environmental},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Wei;* Bihlmayer|;* Zhou; Feng; Kolen’ko; Xiong; Lifeng Liu; Bluegl; X K G X D W X Y V D H S R Dunin-Borkowshi
Discovery of two-dimensional topological ferroelectrinc metal in transition metal phosphides Journal Article
Advanced Materials, 2020.
@article{Dunin-Borkowshi2020,
title = {Discovery of two-dimensional topological ferroelectrinc metal in transition metal phosphides},
author = {Wei;* Bihlmayer|;* Zhou; Feng; Kolen’ko; Xiong; Lifeng Liu; Bluegl; X K G X D W X Y V D H S R Dunin-Borkowshi},
doi = {10.1002/adma.202003479},
year = {2020},
date = {2020-10-07},
journal = {Advanced Materials},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Liu; Wang; Oswarld; Tang; Wang; Yin; Lu; Lifeng Liu; Dong; Ma; Zhu; Zhu;* L J S H J Y Q H L F M O G Schmidt
Decoding of oxygen network distortion in a layered high-rate anode by in situ investigation of a single microelectrode Journal Article
ACS Nano, 2020.
@article{Liu2020b,
title = {Decoding of oxygen network distortion in a layered high-rate anode by in situ investigation of a single microelectrode},
author = {Liu; Wang; Oswarld; Tang; Wang; Yin; Lu; Lifeng Liu; Dong; Ma; Zhu; Zhu;* L J S H J Y Q H L F M O G Schmidt},
editor = {ACS Nano},
url = {https://pubs.acs.org/doi/10.1021/acsnano.0c04483},
year = {2020},
date = {2020-09-02},
journal = {ACS Nano},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Li; Wei; Yu; Bondarchuk; Araujo; Amorim; Xu;* Neves; Lifeng Y B Z P O A I J Y I C Liu*
Bifunctional porous cobalt phosphide foam for high-current-density alkaline water splitting with 4000-h long stability Journal Article
ACS Sustainable Chemistry & Engineering 2020, 2020.
@article{Liu*2020c,
title = {Bifunctional porous cobalt phosphide foam for high-current-density alkaline water splitting with 4000-h long stability},
author = {Li; Wei; Yu; Bondarchuk; Araujo; Amorim; Xu;* Neves; Lifeng Y B Z P O A I J Y I C Liu*},
url = {https://pubs.acs.org/doi/abs/10.1021/acssuschemeng.0c02671},
year = {2020},
date = {2020-08-27},
journal = {ACS Sustainable Chemistry & Engineering 2020},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Liu; Ma; Liu; Koch; Rosebrock; Li; Bettles; He; Koehn; Pfnur; Bigall; Ding; Y P S Y L F J M T R F T A H N C F L Zhang
Nitrogen doping improves the immobilization and catalytic effects of Co9S8 in Li-S batteries Journal Article
Advanced Functional Materials, 2020.
@article{Zhang2020,
title = {Nitrogen doping improves the immobilization and catalytic effects of Co9S8 in Li-S batteries},
author = {Liu; Ma; Liu; Koch; Rosebrock; Li; Bettles; He; Koehn; Pfnur; Bigall; Ding; Y P S Y L F J M T R F T A H N C F L Zhang},
doi = {https://doi.org/10.1002/adfm.202002462},
year = {2020},
date = {2020-06-21},
journal = {Advanced Functional Materials},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Xu; Amorim; Li; Li; Yu; Zhang; Araujo; Zhang; Lifeng J Y I Y J J Z P B S A N Liu*
Carbon Energy 2020, 2020.
@article{Liu*2020b,
title = {Stable overall water splitting in an asymmetric acid/alkaline electrolyzer comprising a bipolar membrane sandwiched by bifunctional cobalt nickel phosphide nanowire electrodes},
author = {Xu; Amorim; Li; Li; Yu; Zhang; Araujo; Zhang; Lifeng J Y I Y J J Z P B S A N Liu*},
editor = {Carbon Energy 2020},
doi = {10.1002/cey2.56},
year = {2020},
date = {2020-06-08},
journal = {Carbon Energy 2020},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Qi; Wu; Xu; Gao; Du; Liu; Lifeng Liu; Y J J Y H Z J B S D H Xiong*
One-step fabrication of self-supported Co@CoTe2 electrocatalyst for efficient and durable oxygen evolution reaction Journal Article
2020.
@article{Xiong*2020,
title = {One-step fabrication of self-supported Co@CoTe2 electrocatalyst for efficient and durable oxygen evolution reaction},
author = {Qi; Wu; Xu; Gao; Du; Liu; Lifeng Liu; Y J J Y H Z J B S D H Xiong*},
editor = {Inorganic Chemistry Frontier},
doi = {10.1039/d0qi00372g},
year = {2020},
date = {2020-05-25},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Wei;* Heggen; Xiong; Lifeng Liu; X K M D H R Dunin-Borkowski
Self-epitaxial hetero-nanolayers and surface atom reconstruction in electrocatalytic nickel phosphides Journal Article Forthcoming
ACS Applied Materials & Interfaces, (12), pp. 21616, Forthcoming.
@article{Dunin-Borkowski2020,
title = {Self-epitaxial hetero-nanolayers and surface atom reconstruction in electrocatalytic nickel phosphides},
author = {Wei;* Heggen; Xiong; Lifeng Liu; X K M D H R Dunin-Borkowski},
doi = {https://pubs.acs.org/doi/abs/10.1021/acsami.0c03154},
year = {2020},
date = {2020-04-17},
journal = {ACS Applied Materials & Interfaces},
number = {12},
pages = {21616},
keywords = {},
pubstate = {forthcoming},
tppubtype = {article}
}Li; Li*; Xu; Zhang; Li; Lifeng Liu*; Wang; Q J J J Y N Y P Z C F L Deepak
Ultrafine-grained porous Ir-based catalysts for high-performance overall water splitting in acidic media Journal Article
ACS Appl. Energy Mater, 2020.
@article{Deepak2020,
title = {Ultrafine-grained porous Ir-based catalysts for high-performance overall water splitting in acidic media},
author = {Li; Li*; Xu; Zhang; Li; Lifeng Liu*; Wang; Q J J J Y N Y P Z C F L Deepak},
doi = {https://doi.org/10.1021/acsaem.0c00201},
year = {2020},
date = {2020-04-07},
journal = {ACS Appl. Energy Mater},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Wei Li Amorim Thomas Thalluri Wang Zhou Xie Lifeng Liu* B J J I R S M Z C W Y S S 11. N. Zhang J. Y. Xu
ACS Applied Energy Materials, 2020.
@article{Zhang2020b,
title = {Mille-Crêpe-Like Metal Phosphide Nanocrystals/Carbon Nanotube Film Composites as High-Capacitance Negative Electrodes in Asymmetric Supercapacitors},
author = {Wei Li Amorim Thomas Thalluri Wang Zhou Xie Lifeng Liu* B J J I R S M Z C W Y S S 11. N. Zhang J. Y. Xu},
url = {https://pubs.acs.org/doi/abs/10.1021/acsaem.0c00263},
year = {2020},
date = {2020-03-05},
journal = {ACS Applied Energy Materials},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Xu; Lian; Wei; Li; Bondarchuk; Zhang; Yu; Araujo; Amorim; Wang;* Li;* Lifeng J Y Z B Y O N Z P A I Z C B Liu*
ACS Catalysis, 2020.
@article{Liu*2020d,
title = {Strong Electronic Coupling between Ultrafine Iridium–Ruthenium Nanoclusters and Conductive, Acid-Stable Tellurium Nanoparticle Support for Efficient and Durable Oxygen Evolution in Acidic and Neutral MediaACS Catalysis},
author = {Xu; Lian; Wei; Li; Bondarchuk; Zhang; Yu; Araujo; Amorim; Wang;* Li;* Lifeng J Y Z B Y O N Z P A I Z C B Liu*},
doi = {https://doi.org/10.1021/acscatal.9b05611},
year = {2020},
date = {2020-02-21},
journal = {ACS Catalysis},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Lv Huang Hu Lifeng Liu* C C Z P * X L * S. M. Thalluri L. C. Bai
Strategies for semiconductor/electrocatalysts coupling toward solar-driven water splitting Journal Article
Advanced Science, 2020.
@article{Thalluri2020,
title = {Strategies for semiconductor/electrocatalysts coupling toward solar-driven water splitting},
author = {Lv Huang Hu Lifeng Liu* C C Z P * X L * S. M. Thalluri L. C. Bai},
doi = {https://doi.org/10.1002/advs.201902102},
year = {2020},
date = {2020-02-04},
journal = {Advanced Science},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Yang; Duan; Tamirat; Liu; Lifeng Liu; B B B A G Y B H Liu*
Bamboo-like nitrogen-doped carbon nanotubes encapsulated with NiFeP nanoparticles and their efficient catalysis in the oxygen evolution reaction Journal Article
2020.
@article{Liu*2020e,
title = {Bamboo-like nitrogen-doped carbon nanotubes encapsulated with NiFeP nanoparticles and their efficient catalysis in the oxygen evolution reaction},
author = {Yang; Duan; Tamirat; Liu; Lifeng Liu; B B B A G Y B H Liu*},
doi = {https://doi.org/10.1016/j.electacta.2019.135360},
year = {2020},
date = {2020-01-20},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Zhang; Yi; He; Zhang; Shen; Liu; Lifeng Liu; Liu; R T J Y L J C P S J B H L Qiao
Proteomic and Metabolic Elucidation of Solar-Powered Biomanufacturing by Bio-Abiotic Hybrid System Journal Article
Chem, 2020 (6), pp. 234-249, 2020.
@article{Qiao2020,
title = {Proteomic and Metabolic Elucidation of Solar-Powered Biomanufacturing by Bio-Abiotic Hybrid System},
author = {Zhang; Yi; He; Zhang; Shen; Liu; Lifeng Liu; Liu; R T J Y L J C P S J B H L Qiao},
doi = {https://doi.org/10.1016/j.chempr.2019.11.002},
year = {2020},
date = {2020-01-09},
journal = {Chem},
volume = {2020},
number = {6},
pages = {234-249},
keywords = {},
pubstate = {published},
tppubtype = {article}
} -
2019
J.Y.Xu J.J.Li B.Wei I.Amorim R.Thomas S.M.Thalluri Y.Y.Liu G.H.Yu Lifeng Liu* N.Zhang Y.F.Li
High performance flexible solid-state asymmetric supercapacitors based on bi-metallic transition metal phosphide nanocrystals Journal Article
ACS Nano, 2019.
@article{Zhang2019,
title = {High performance flexible solid-state asymmetric supercapacitors based on bi-metallic transition metal phosphide nanocrystals},
author = {J.Y.Xu J.J.Li B.Wei I.Amorim R.Thomas S.M.Thalluri Y.Y.Liu G.H.Yu Lifeng Liu* N.Zhang Y.F.Li},
editor = {ACS Nano},
doi = {DOI: 10.1021/acsnano.9b04810},
year = {2019},
date = {2019-08-28},
journal = {ACS Nano},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Z.W.Fang X.Zhang X.Xu Y.Du Lifeng Liu Shixue Dou Guihua Yu* N.N.Wang Z.C.Bai
A general synthetic strategy for pomegranate-like transition metal phosphide@N-doped carbon nanostructures with high lithium storage capacity Journal Article
ACS Mater. Lett., 1 (265), 2019.
@article{Wang2019,
title = {A general synthetic strategy for pomegranate-like transition metal phosphide@N-doped carbon nanostructures with high lithium storage capacity},
author = {Z.W.Fang X.Zhang X.Xu Y.Du Lifeng Liu Shixue Dou Guihua Yu* N.N.Wang Z.C.Bai},
doi = {doi.org/10.1021/acsmaterialslett.9b00216},
year = {2019},
date = {2019-07-16},
journal = {ACS Mater. Lett.},
volume = {1},
number = {265},
keywords = {},
pubstate = {published},
tppubtype = {article}
}R.Thomas L.Qiao Z.C.Wang Lifeng Liu* S.M.Mouli B.Wei
Invert pyramid textured p-silicon covered with Co2P as an efficient and stable solar hydrogen evolution photocathode Journal Article
ACS Energy Lett., 4 (1755), 2019.
@article{S.M.Mouli2019,
title = {Invert pyramid textured p-silicon covered with Co2P as an efficient and stable solar hydrogen evolution photocathode},
author = {R.Thomas L.Qiao Z.C.Wang Lifeng Liu* S.M.Mouli B.Wei},
doi = {doi.org/10.1021/acsenergylett.9b00964},
year = {2019},
date = {2019-06-24},
journal = {ACS Energy Lett.},
volume = {4},
number = {1755},
keywords = {},
pubstate = {published},
tppubtype = {article}
}N.Zhang D.H.Xiong S.M.Thalluri R.Thomas J.P.S.Sousa A.Araujo H.Li Lifeng Liu* I Amorim J.Y.Xu
Bi-metallic cobalt-nickel phosphide nanowires for electrocatalysis of the oxygen and hydrogen evolution reactions Journal Article
Catal. Today, 2019.
@article{Amorim2019,
title = {Bi-metallic cobalt-nickel phosphide nanowires for electrocatalysis of the oxygen and hydrogen evolution reactions},
author = {N.Zhang D.H.Xiong S.M.Thalluri R.Thomas J.P.S.Sousa A.Araujo H.Li Lifeng Liu* I Amorim J.Y.Xu},
doi = {DOI: 10.1016/j.cattod.2019.05.037},
year = {2019},
date = {2019-05-20},
journal = {Catal. Today},
keywords = {},
pubstate = {published},
tppubtype = {article}
}S.Z.Huang X.Y.Lu L.Zhang Y.Li S.T.Wang Lifeng Liu* Q.H.Weng O.G.Schmidt L.X.Liu M.S.Zhu
Artificial electrode interface enables stable operation of freestanding anodes for high-performance flexible lithium ion batteries Journal Article
J. Mater. Chem. A, 7 (14097), 2019.
@article{L.X.Liu2019,
title = {Artificial electrode interface enables stable operation of freestanding anodes for high-performance flexible lithium ion batteries},
author = {S.Z.Huang X.Y.Lu L.Zhang Y.Li S.T.Wang Lifeng Liu* Q.H.Weng O.G.Schmidt L.X.Liu M.S.Zhu},
doi = {DOI: 10.1039/C9TA03302E},
year = {2019},
date = {2019-05-16},
journal = {J. Mater. Chem. A},
volume = {7},
number = {14097},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Y.Li J.Y.Xu* J.J.Li* Lifeng Liu F.L.Deepak Q.Li B.Wei
Large-scale fabrication of hollow Pt3Al nanoboxes and their electrocatalytic performance for hydrogen evolution reaction Journal Article
ACS Sus. Chem. Eng, 7 (9842), 2019.
@article{Q.Li2019,
title = {Large-scale fabrication of hollow Pt3Al nanoboxes and their electrocatalytic performance for hydrogen evolution reaction},
author = {Y.Li J.Y.Xu* J.J.Li* Lifeng Liu F.L.Deepak Q.Li B.Wei},
doi = {doi.org/10.1021/acssuschemeng.9b00372},
year = {2019},
date = {2019-05-13},
journal = {ACS Sus. Chem. Eng},
volume = {7},
number = {9842},
keywords = {},
pubstate = {published},
tppubtype = {article}
}X.FGao Lifeng Liu* W.Li D.H.Xiong
The oxygen evolution reaction enabled by transition metal phosphide and chalcogenide pre-catalysts with dynamic changes Journal Article
Chem. Commun, 55 (8744), 2019, (Invited Feature Article).
@article{W.Li2019,
title = {The oxygen evolution reaction enabled by transition metal phosphide and chalcogenide pre-catalysts with dynamic changes},
author = {X.FGao Lifeng Liu* W.Li D.H.Xiong},
doi = {DOI:10.1039/C9CC02845E},
year = {2019},
date = {2019-04-12},
journal = {Chem. Commun},
volume = {55},
number = {8744},
note = {Invited Feature Article},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Hong Li Junyuan Xu Junjie Li Xiujian Zhao Lifeng Liu Dehua Xiong Zijuan Du
Polyvinylpyrrolidone-Assisted Hydrothermal Synthesis of CuCoO2 Nanoplates with Enhanced Oxygen Evolution Reaction Performance Journal Article
ACS Sustainable Chemistry & Engineering, 7 , pp. 1493-1501, 2019.
@article{Xiong2019,
title = {Polyvinylpyrrolidone-Assisted Hydrothermal Synthesis of CuCoO2 Nanoplates with Enhanced Oxygen Evolution Reaction Performance},
author = {Hong Li Junyuan Xu Junjie Li Xiujian Zhao Lifeng Liu Dehua Xiong Zijuan Du},
url = {https://www.researchgate.net/publication/329147815_Polyvinylpyrrolidone-Assisted_Hydrothermal_Synthesis_of_CuCoO2_Nanoplates_with_Enhanced_Oxygen_Evolution_Reaction_Performance},
doi = {DOI:10.1021/acssuschemeng.8b05236},
year = {2019},
date = {2019-01-28},
journal = {ACS Sustainable Chemistry & Engineering},
volume = {7},
pages = {1493-1501},
abstract = {Tuning size and morphology and exploiting new catalytic materials are several important strategies commonly used to develop highly efficient oxygen evolution reaction (OER) electrocatalysts. In this work, we report the synthesis of CuCoO2 (CCO) nanoplates through a facile one-step PVP assisted hydrothermal process. The influence of hydrothermal reaction parameters, including the precursor composition, reaction temperature and duration, on the morphology, size and crystal phase of CCO crystals has been investigated in detail. In addition, X-ray diffractometry (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and X-ray photoelectron spectroscopy (XPS) have been used to comprehensively characterize CCO’s crystal structure, morphology, composition and chemical states of elements. Furthermore, the electrocatalytic performance of CCO nanoplates towards the OER is studied and compared to that of CCO micrometer-sized crystals. The CCO nanoplates only require a low overpotential of 390 mV to attain an anodic current density 10 mA cm-2 in alkaline solution, and show comparatively fast OER kinetics with a Tafel slope of 70 mV dec-1 and reasonably good long-term catalytic stability, substantially outperforming CCO micro-crystals, which highlights the importance of size and morphology of CCO for use in OER electrocatalysis.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Tuning size and morphology and exploiting new catalytic materials are several important strategies commonly used to develop highly efficient oxygen evolution reaction (OER) electrocatalysts. In this work, we report the synthesis of CuCoO2 (CCO) nanoplates through a facile one-step PVP assisted hydrothermal process. The influence of hydrothermal reaction parameters, including the precursor composition, reaction temperature and duration, on the morphology, size and crystal phase of CCO crystals has been investigated in detail. In addition, X-ray diffractometry (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and X-ray photoelectron spectroscopy (XPS) have been used to comprehensively characterize CCO’s crystal structure, morphology, composition and chemical states of elements. Furthermore, the electrocatalytic performance of CCO nanoplates towards the OER is studied and compared to that of CCO micrometer-sized crystals. The CCO nanoplates only require a low overpotential of 390 mV to attain an anodic current density 10 mA cm-2 in alkaline solution, and show comparatively fast OER kinetics with a Tafel slope of 70 mV dec-1 and reasonably good long-term catalytic stability, substantially outperforming CCO micro-crystals, which highlights the importance of size and morphology of CCO for use in OER electrocatalysis. -
2018
Junjie Li Isilda Amorim Bingsen Zhang Dehua Xiong Nan Zhang Sitaramanjaneya Mouli Thalluri Juliana P.S.Sousa Lifeng Liu Junyuan Xu Yuefeng Liu
J. Mater. Chem. A, 6 , 2018.
@article{Xu2018e,
title = {Hollow cobalt phosphide octahedral pre-catalysts with exceptionally high intrinsic catalytic activity for electro-oxidation of water and methanol},
author = {Junjie Li Isilda Amorim Bingsen Zhang Dehua Xiong Nan Zhang Sitaramanjaneya Mouli Thalluri Juliana P.S.Sousa Lifeng Liu Junyuan Xu Yuefeng Liu},
url = {https://www.researchgate.net/publication/328034898_Hollow_cobalt_phosphide_octahedral_pre-catalysts_with_exceptionally_high_intrinsic_catalytic_activity_for_electro-oxidation_of_water_and_methanol},
doi = {DOI:10.1039/C8TA07958G},
year = {2018},
date = {2018-10-16},
journal = {J. Mater. Chem. A},
volume = {6},
abstract = {Microstructural engineering is an effective approach to improving electrocatalytic activity of a catalyst. Shape-controlled hollow nanostructures represent a class of interesting architectures for use in electrocatalysis, given that they may offer large surface area, preferably exposed active sites, reduced diffusion pathways for both charge and mass transport, as well as enhanced catalytic activity due to the nano-cavity effect. Herein, we for the first time report the synthesis of hollow cobalt phosphide nanoparticles with well-defined octahedral shape (CoP OCHs) via multi-step reactions. When used as pre-catalysts for the oxygen evolution reaction (OER) in alkaline solution, the as-obtained CoP OCHs not only show high apparent catalytic activity requiring an overpotential of only 240 mV to deliver the benchmark current density of 10 mA cm-2, but also exhibit an exceptionally high catalyst surface-area-based turnover frequency (TOF) of 17.6 s-1 and a catalyst mass-based TOF of 0.072 s-1 at a low overpotential of 300 mV, demonstrating excellent intrinsic catalytic activity. Moreover, the CoP OCHs also show high electrocatalytic activity for the methanol oxidation reaction (MOR), outperforming most metal phosphide based MOR catalysts reported so far. The synthetic strategy reported here can be readily extended to prepare other hollow shape-controlled metal phosphide catalysts.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Microstructural engineering is an effective approach to improving electrocatalytic activity of a catalyst. Shape-controlled hollow nanostructures represent a class of interesting architectures for use in electrocatalysis, given that they may offer large surface area, preferably exposed active sites, reduced diffusion pathways for both charge and mass transport, as well as enhanced catalytic activity due to the nano-cavity effect. Herein, we for the first time report the synthesis of hollow cobalt phosphide nanoparticles with well-defined octahedral shape (CoP OCHs) via multi-step reactions. When used as pre-catalysts for the oxygen evolution reaction (OER) in alkaline solution, the as-obtained CoP OCHs not only show high apparent catalytic activity requiring an overpotential of only 240 mV to deliver the benchmark current density of 10 mA cm-2, but also exhibit an exceptionally high catalyst surface-area-based turnover frequency (TOF) of 17.6 s-1 and a catalyst mass-based TOF of 0.072 s-1 at a low overpotential of 300 mV, demonstrating excellent intrinsic catalytic activity. Moreover, the CoP OCHs also show high electrocatalytic activity for the methanol oxidation reaction (MOR), outperforming most metal phosphide based MOR catalysts reported so far. The synthetic strategy reported here can be readily extended to prepare other hollow shape-controlled metal phosphide catalysts.Dehua Xiong Rongsheng Cai Xian-Kui Wei Marc Heggen Emanuele Barborini Simone Vinati Rafal E.Dunin-Borkowski Richard E.Palmer Lifeng Liu Junyuan Xu Shane Murphy
Cluster Beam Deposition of Ultrafine Cobalt and Ruthenium Clusters for Efficient and Stable Oxygen Evolution Reaction Journal Article
ACS Applied Energy Materials, 1 , 2018.
@article{Xu2018eb,
title = {Cluster Beam Deposition of Ultrafine Cobalt and Ruthenium Clusters for Efficient and Stable Oxygen Evolution Reaction},
author = {Dehua Xiong Rongsheng Cai Xian-Kui Wei Marc Heggen Emanuele Barborini Simone Vinati Rafal E.Dunin-Borkowski Richard E.Palmer Lifeng Liu Junyuan Xu Shane Murphy},
url = {https://www.researchgate.net/publication/325703234_Cluster_Beam_Deposition_of_Ultrafine_Cobalt_and_Ruthenium_Clusters_for_Efficient_and_Stable_Oxygen_Evolution_Reaction},
doi = {DOI:10.1021/acsaem.8b00111},
year = {2018},
date = {2018-06-19},
journal = {ACS Applied Energy Materials},
volume = {1},
abstract = {Ultrafine cobalt and ruthenium clusters are deposited on carbon paper substrates by Cluster Beam Deposition using a Matrix Assembly Cluster Source and a Pulsed Microplasma Cluster Source, respectively. When used to catalyze the oxygen evolution reaction (OER), the cobalt and ruthenium clusters show electrocatalytic performance superior to the state-of-the-art Ru/C and RuO2 nanoparticle catalysts on both mass and specific-surface-area basis. Typically, the cobalt clusters can deliver 10 mA cm-2 at a low overpotential of 320 mV, and show a small Tafel slope of 50 mV dec-1 and a mass-based turnover frequency of 0.01 s-1 at an overpotential of 300 mV, outperforming many cobalt-based OER catalysts.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Ultrafine cobalt and ruthenium clusters are deposited on carbon paper substrates by Cluster Beam Deposition using a Matrix Assembly Cluster Source and a Pulsed Microplasma Cluster Source, respectively. When used to catalyze the oxygen evolution reaction (OER), the cobalt and ruthenium clusters show electrocatalytic performance superior to the state-of-the-art Ru/C and RuO2 nanoparticle catalysts on both mass and specific-surface-area basis. Typically, the cobalt clusters can deliver 10 mA cm-2 at a low overpotential of 320 mV, and show a small Tafel slope of 50 mV dec-1 and a mass-based turnover frequency of 0.01 s-1 at an overpotential of 300 mV, outperforming many cobalt-based OER catalysts.Schmidt Shaozhuan Huang; Lin Zhangad; Lifeng Liu; Lixiang Liu; Junjie Li; Han Hu; Jiawei Wang; Fei Dinga; Oliver G
High energy lithium ion battery using rationally engineered amorphous TiOx/Si/TiOx nanomembrane anode Journal Article
Energy Storage Materials, 2018.
@article{Huang2018,
title = {High energy lithium ion battery using rationally engineered amorphous TiOx/Si/TiOx nanomembrane anode},
author = {Schmidt Shaozhuan Huang; Lin Zhangad; Lifeng Liu; Lixiang Liu; Junjie Li; Han Hu; Jiawei Wang; Fei Dinga; Oliver G},
url = {https://www.sciencedirect.com/science/article/pii/S2405829717304919},
doi = {https://doi.org/10.1016/j.ensm.2017.11.010},
year = {2018},
date = {2018-05-12},
journal = {Energy Storage Materials},
abstract = {Energy density is the main performance indicator of lithium ion batteries (LIBs) that has driven the entire technology forward over the past decades. However, the current LIBs cannot meet the ever-increasing energy storage demand. Herein, a stable lithium-ion full battery with high energy density of 525 Wh kg-1 has been demonstrated, using a newly designed 3D amorphous TiOx/Si/TiOx nanomembranes (NMs) as the anode. The Li+ penetrable and electron conductive TiOx coating on the Si surface effectively improves the e-/Li+ transportability and enhances the structural stability of the TiOx/Si/TiOx NMs. The nanoscaled multi-winding membranes provide shortened pathway for rapid e-/Li+ transport, and empty channels allowing for free volume expansion of the Si without mechanical breaking. As a result, the customized TiOx/Si/TiOx NMs display improved lithium storage performance with high initial coulombic efficiency (ICE), long cycle life and excellent rate capability. When pairing this special anode with a commercial LiNi1/3Co1/3Mn1/3O2 (NCM) cathode, the TiOx/Si/TiOx-NCM full-battery delivers good cycling stability, excellent power capability and, most remarkably, an unprecedented improvement in the gravimetric energy density. Therefore, it is believed that this unique TiOx/Si/TiOx nanomaterials may hold promise for the next-generation LIBs with high energy density.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Energy density is the main performance indicator of lithium ion batteries (LIBs) that has driven the entire technology forward over the past decades. However, the current LIBs cannot meet the ever-increasing energy storage demand. Herein, a stable lithium-ion full battery with high energy density of 525 Wh kg-1 has been demonstrated, using a newly designed 3D amorphous TiOx/Si/TiOx nanomembranes (NMs) as the anode. The Li+ penetrable and electron conductive TiOx coating on the Si surface effectively improves the e-/Li+ transportability and enhances the structural stability of the TiOx/Si/TiOx NMs. The nanoscaled multi-winding membranes provide shortened pathway for rapid e-/Li+ transport, and empty channels allowing for free volume expansion of the Si without mechanical breaking. As a result, the customized TiOx/Si/TiOx NMs display improved lithium storage performance with high initial coulombic efficiency (ICE), long cycle life and excellent rate capability. When pairing this special anode with a commercial LiNi1/3Co1/3Mn1/3O2 (NCM) cathode, the TiOx/Si/TiOx-NCM full-battery delivers good cycling stability, excellent power capability and, most remarkably, an unprecedented improvement in the gravimetric energy density. Therefore, it is believed that this unique TiOx/Si/TiOx nanomaterials may hold promise for the next-generation LIBs with high energy density.Yu Xu Amorim Gaspar Qiao Ferreira Alpuim Liu K J I J L P P L S. Mouli Thalluri J. Borme
Conformal and continuous deposition of bifunctional cobalt phosphide layers on p-silicon nanowire arrays for improved solar hydrogen evolution Journal Article
Nano Research, 11 (9), pp. 4823–4835, 2018, ISSN: 1998-0124.
@article{Thalluri2018cb,
title = {Conformal and continuous deposition of bifunctional cobalt phosphide layers on p-silicon nanowire arrays for improved solar hydrogen evolution},
author = {Yu Xu Amorim Gaspar Qiao Ferreira Alpuim Liu K J I J L P P L S. Mouli Thalluri J. Borme},
doi = {10.1007/s12274-018-2070-4},
issn = {1998-0124},
year = {2018},
date = {2018-04-27},
journal = {Nano Research},
volume = {11},
number = {9},
pages = {4823–4835},
abstract = {Vertically aligned p-silicon nanowire (SiNW) arrays have been extensively investigated in recent years as promising photocathodes for solar-driven hydrogen evolution. However, the fabrication of SiNW photocathodes with both high photoelectrocatalytic activity and long-term operational stability using a simple and affordable approach is a challenging task. Herein, we report conformal and continuous deposition of a di-cobalt phosphide (Co2P) layer on lithography-patterned highly ordered SiNW arrays via a cost-effective drop-casting method followed by a low-temperature phosphorization treatment. The as-deposited Co2P layer consists of crystalline nanoparticles and has an intimate contact with SiNWs, forming a well-defined SiNW@Co2P core/shell nanostructure. The conformal and continuous Co2P layer functions as a highly efficient catalyst capable of substantially improving the photoelectrocatalytic activity for the hydrogen evolution reaction (HER) and effectively passivates the SiNWs to protect them from photo-oxidation, thus prolonging the lifetime of the electrode. As aconsequence, the SiNW@Co2P photocathode with an optimized Co2P layer thickness exhibits a high photocurrent density of–21.9 mA·cm−2 at 0 V versus reversible hydrogen electrode and excellent operational stability up to 20 h for solar-driven hydrogen evolution, outperforming many nanostructured silicon photocathodes reported in the literature. The combination of passivation and catalytic functions in a single continuous layer represents a promising strategy for designing high-performance semiconductor photoelectrodes for use insolar-driven water splitting, which may simplify fabrication procedures andpotentially reduce production costs.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Vertically aligned p-silicon nanowire (SiNW) arrays have been extensively investigated in recent years as promising photocathodes for solar-driven hydrogen evolution. However, the fabrication of SiNW photocathodes with both high photoelectrocatalytic activity and long-term operational stability using a simple and affordable approach is a challenging task. Herein, we report conformal and continuous deposition of a di-cobalt phosphide (Co2P) layer on lithography-patterned highly ordered SiNW arrays via a cost-effective drop-casting method followed by a low-temperature phosphorization treatment. The as-deposited Co2P layer consists of crystalline nanoparticles and has an intimate contact with SiNWs, forming a well-defined SiNW@Co2P core/shell nanostructure. The conformal and continuous Co2P layer functions as a highly efficient catalyst capable of substantially improving the photoelectrocatalytic activity for the hydrogen evolution reaction (HER) and effectively passivates the SiNWs to protect them from photo-oxidation, thus prolonging the lifetime of the electrode. As aconsequence, the SiNW@Co2P photocathode with an optimized Co2P layer thickness exhibits a high photocurrent density of–21.9 mA·cm−2 at 0 V versus reversible hydrogen electrode and excellent operational stability up to 20 h for solar-driven hydrogen evolution, outperforming many nanostructured silicon photocathodes reported in the literature. The combination of passivation and catalytic functions in a single continuous layer represents a promising strategy for designing high-performance semiconductor photoelectrodes for use insolar-driven water splitting, which may simplify fabrication procedures andpotentially reduce production costs.Li Liu Zhang Xiong Amorim Thalluri Li Liu Lifeng* T F; J J; Y F; B S; D H; I; S M; W; Xu J. Y.; Liu
Ruthenium cobalt phosphide hybrid clusters with exceptional hydrogen evolution performance in both acidic and alkaline electrolytes Journal Article
Energy Environ. Sci., 2018.
@article{Xu2018c,
title = {Ruthenium cobalt phosphide hybrid clusters with exceptional hydrogen evolution performance in both acidic and alkaline electrolytes},
author = {Li Liu Zhang Xiong Amorim Thalluri Li Liu Lifeng* T F; J J; Y F; B S; D H; I; S M; W; Xu J. Y.; Liu},
url = {http://pubs.rsc.org/en/content/articlehtml/2018/ee/c7ee03603e},
doi = {10.1039/C7EE03603E},
year = {2018},
date = {2018-04-11},
journal = {Energy Environ. Sci.},
abstract = {In this article, we for the first time report the synthesis and electrocatalytic properties of ruthenium cobalt phosphide hybrid clusters for the hydrogen evolution reaction (HER). Two types of catalysts are investigated: wet chemical reduction of Ru3+ on pre-formed cobalt phosphide (CoP) nanoparticles results in ruthenium–cobalt phosphide side-by-side structures (Ru/CoP); while phosphorizing chemically reduced RuCo alloy leads to the formation of hybrid ruthenium cobalt phosphide (RuCoP) clusters. Compared to pristine Ru clusters, both Ru/CoP and RuCoP show significantly improved HER performance in both acidic and alkaline solutions. In particular, the hybrid RuCoP clusters demonstrate a considerably low overpotential (η10) of 11 mV at −10 mA cm−2 and a high turnover frequency (TOF) of 10.95 s−1 at η = 100 mV in 0.5 M H2SO4. Even in 1.0 M KOH the excellent HER activity of the RuCoP clusters remains, with a very low η10 of 23 mV and exceptionally high TOF value of 7.26 s−1 at η = 100 mV. Moreover, the RuCoP catalysts can sustain galvanostatic electrolysis in both acidic and alkaline solutions at −10 mA cm−2 for 150 h with little degradation, showing better catalytic stability than the state-of-the-art commercial Pt/C catalysts. Our density functional theory (DFT) calculations indicate that the RuCoP hybrid exhibits a hydrogen adsorption energy very close to that of Pt and water and –OH adsorption energies distinct from pristine Ru, which reasonably explain the experimentally observed excellent HER activities and highlight the importance of synergistic coupling with cobalt phosphide to boost the HER performance of ruthenium.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}In this article, we for the first time report the synthesis and electrocatalytic properties of ruthenium cobalt phosphide hybrid clusters for the hydrogen evolution reaction (HER). Two types of catalysts are investigated: wet chemical reduction of Ru3+ on pre-formed cobalt phosphide (CoP) nanoparticles results in ruthenium–cobalt phosphide side-by-side structures (Ru/CoP); while phosphorizing chemically reduced RuCo alloy leads to the formation of hybrid ruthenium cobalt phosphide (RuCoP) clusters. Compared to pristine Ru clusters, both Ru/CoP and RuCoP show significantly improved HER performance in both acidic and alkaline solutions. In particular, the hybrid RuCoP clusters demonstrate a considerably low overpotential (η10) of 11 mV at −10 mA cm−2 and a high turnover frequency (TOF) of 10.95 s−1 at η = 100 mV in 0.5 M H2SO4. Even in 1.0 M KOH the excellent HER activity of the RuCoP clusters remains, with a very low η10 of 23 mV and exceptionally high TOF value of 7.26 s−1 at η = 100 mV. Moreover, the RuCoP catalysts can sustain galvanostatic electrolysis in both acidic and alkaline solutions at −10 mA cm−2 for 150 h with little degradation, showing better catalytic stability than the state-of-the-art commercial Pt/C catalysts. Our density functional theory (DFT) calculations indicate that the RuCoP hybrid exhibits a hydrogen adsorption energy very close to that of Pt and water and –OH adsorption energies distinct from pristine Ru, which reasonably explain the experimentally observed excellent HER activities and highlight the importance of synergistic coupling with cobalt phosphide to boost the HER performance of ruthenium.Yu Xu Amorim Gaspar Qiao Ferreira Alpuim Lifeng Liu* K J Y I J L P P S. M. Thalluri J. Borme
Conformal and continuous deposition of bifunctional cobalt phosphide layers on p-silicon nanowire arrays for improved solar hydrogen evolution Journal Article
Nano Research, 2018.
@article{Thalluri2018c,
title = {Conformal and continuous deposition of bifunctional cobalt phosphide layers on p-silicon nanowire arrays for improved solar hydrogen evolution},
author = {Yu Xu Amorim Gaspar Qiao Ferreira Alpuim Lifeng Liu* K J Y I J L P P S. M. Thalluri J. Borme},
url = {https://link.springer.com/article/10.1007%2Fs12274-018-2070-4},
doi = {10.1007/s12274-018-2070-4},
year = {2018},
date = {2018-04-07},
journal = {Nano Research},
abstract = {Vertically aligned p-silicon nanowire (SiNW) arrays have been extensively investigated in recent years as promising photocathodes for solar-driven hydrogen evolution. However, the fabrication of SiNW photocathodes with both high photoelectrocatalytic activity and long-term operational stability using a simple and affordable approach is a challenging task. Herein, we report conformal and continuous deposition of a di-cobalt phosphide (Co2P) layer on lithography-patterned highly ordered SiNW arrays via a cost-effective drop-casting method followed by a low-temperature phosphorization treatment. The as-deposited Co2P layer consists of crystalline nanoparticles and has an intimate contact with SiNWs, forming a well-defined SiNW@Co2P core/shell nanostructure. The conformal and continuous Co2P layer functions as a highly efficient catalyst capable of substantially improving the photoelectrocatalytic activity for the hydrogen evolution reaction (HER) and effectively passivates the SiNWs to protect them from photo-oxidation, thus prolonging the lifetime of the electrode. As aconsequence, the SiNW@Co2P photocathode with an optimized Co2P layer thickness exhibits a high photocurrent density of–21.9 mA·cm−2 at 0 V versus reversible hydrogen electrode and excellent operational stability up to 20 h for solar-driven hydrogen evolution, outperforming many nanostructured silicon photocathodes reported in the literature. The combination of passivation and catalytic functions in a single continuous layer represents a promising strategy for designing high-performance semiconductor photoelectrodes for use insolar-driven water splitting, which may simplify fabrication procedures andpotentially reduce production costs.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Vertically aligned p-silicon nanowire (SiNW) arrays have been extensively investigated in recent years as promising photocathodes for solar-driven hydrogen evolution. However, the fabrication of SiNW photocathodes with both high photoelectrocatalytic activity and long-term operational stability using a simple and affordable approach is a challenging task. Herein, we report conformal and continuous deposition of a di-cobalt phosphide (Co2P) layer on lithography-patterned highly ordered SiNW arrays via a cost-effective drop-casting method followed by a low-temperature phosphorization treatment. The as-deposited Co2P layer consists of crystalline nanoparticles and has an intimate contact with SiNWs, forming a well-defined SiNW@Co2P core/shell nanostructure. The conformal and continuous Co2P layer functions as a highly efficient catalyst capable of substantially improving the photoelectrocatalytic activity for the hydrogen evolution reaction (HER) and effectively passivates the SiNWs to protect them from photo-oxidation, thus prolonging the lifetime of the electrode. As aconsequence, the SiNW@Co2P photocathode with an optimized Co2P layer thickness exhibits a high photocurrent density of–21.9 mA·cm−2 at 0 V versus reversible hydrogen electrode and excellent operational stability up to 20 h for solar-driven hydrogen evolution, outperforming many nanostructured silicon photocathodes reported in the literature. The combination of passivation and catalytic functions in a single continuous layer represents a promising strategy for designing high-performance semiconductor photoelectrodes for use insolar-driven water splitting, which may simplify fabrication procedures andpotentially reduce production costs.Sitaramanjaneya Mouli Thalluri; Jérôme Borme; Dehua Xiong; Junyuan Xu; Wei Li; Isilda Amorim; Pedro Alpuim; João Gaspar; Hélder Fonseca; Liang Qiao; Lifeng Liu
Sustainable Energy & Fuels, 2 (5), pp. 978-982, 2018.
@article{Thalluri2018cc,
title = {Highly-ordered silicon nanowire arrays for photoelectrochemical hydrogen evolution: An investigation on the effect of wire diameter, length and inter-wire spacing},
author = {Sitaramanjaneya Mouli Thalluri; Jérôme Borme; Dehua Xiong; Junyuan Xu; Wei Li; Isilda Amorim; Pedro Alpuim; João Gaspar; Hélder Fonseca; Liang Qiao; Lifeng Liu},
url = {http://pubs.rsc.org/en/content/articlelanding/2018/se/c7se00591a#!divAbstract},
doi = {10.1039/C7SE00591A},
year = {2018},
date = {2018-03-08},
journal = {Sustainable Energy & Fuels},
volume = {2},
number = {5},
pages = {978-982},
abstract = {Vertically-aligned, highly-ordered silicon nanowire (SiNW) array photocathodes are fabricated employing e-beam lithography followed by deep reactive ion etching (DRIE) of Si. The effect of structural parameters of SiNWs, including wire diameter, length and inter-wire spacing, on their photoelectrocatalytic hydrogen evolution performance has been systematically investigated. Within the range of dimensions under study, the SiNW photocathode with a wire diameter of 200 nm, a length of 1 μm and an inter-wire spacing of 175 nm shows the best performance exhibiting a maximal saturated photocurrent density of 52 mA cm−2 and an onset potential (@−1 mA cm−2) of −0.17 V versus reversible hydrogen electrode. These lithography-patterned SiNWs with homogeneous structural parameters can help establish an unobscured structure–activity relation and facilitate Si-based photoelectrode design.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Vertically-aligned, highly-ordered silicon nanowire (SiNW) array photocathodes are fabricated employing e-beam lithography followed by deep reactive ion etching (DRIE) of Si. The effect of structural parameters of SiNWs, including wire diameter, length and inter-wire spacing, on their photoelectrocatalytic hydrogen evolution performance has been systematically investigated. Within the range of dimensions under study, the SiNW photocathode with a wire diameter of 200 nm, a length of 1 μm and an inter-wire spacing of 175 nm shows the best performance exhibiting a maximal saturated photocurrent density of 52 mA cm−2 and an onset potential (@−1 mA cm−2) of −0.17 V versus reversible hydrogen electrode. These lithography-patterned SiNWs with homogeneous structural parameters can help establish an unobscured structure–activity relation and facilitate Si-based photoelectrode design.Xiong Zhang Liu Wu Amorim Li Thalluri Lifeng Liu D H B S Y F K H I W S M J.Y. Xu J.J. Li
Trends in activity for the oxygen evolution reaction on transition metal (M = Fe, Co, Ni) monophosphide catalysts Journal Article
Chem. Sci., 2018.
@article{Xu2018b,
title = {Trends in activity for the oxygen evolution reaction on transition metal (M = Fe, Co, Ni) monophosphide catalysts},
author = {Xiong Zhang Liu Wu Amorim Li Thalluri Lifeng Liu D H B S Y F K H I W S M J.Y. Xu J.J. Li},
url = {http://pubs.rsc.org/en/content/articlelanding/2018/sc/c7sc05033j#!divAbstract},
doi = {10.1039/C7SC05033J},
year = {2018},
date = {2018-03-05},
journal = {Chem. Sci.},
abstract = {Transition metal phosphides (TMPs) have recently emerged as a new class of pre-catalysts that can efficiently catalyze the oxygen evolution reaction (OER). However, how the OER activity of TMPs varies with the catalyst composition has not been systematically explored. Here, we report the alkaline OER electrolysis of a series of nanoparticulate phosphides containing different equimolar metal (M = Fe, Co, Ni) components. Notable trends in OER activity are observed, following the order of FeP < NiP < CoP < FeNiP < FeCoP < CoNiP < FeCoNiP, which indicate that the introduction of a secondary metal(s) to a mono-metallic TMP substantially boosts the OER performance. We ascribe the promotional effect to the enhanced oxidizing power of bi- and tri-metallic TMPs that can facilitate the formation of MOH and chemical adsorption of OH− groups, which are the rate-limiting steps for these catalysts according to our Tafel analysis. Remarkably, the tri-metallic FeCoNiP pre-catalyst exhibits exceptionally high apparent and intrinsic OER activities, requiring only 200 mV to deliver 10 mA cm−2 and showing a high turnover frequency (TOF) of ≥0.94 s−1 at the overpotential of 350 mV.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Transition metal phosphides (TMPs) have recently emerged as a new class of pre-catalysts that can efficiently catalyze the oxygen evolution reaction (OER). However, how the OER activity of TMPs varies with the catalyst composition has not been systematically explored. Here, we report the alkaline OER electrolysis of a series of nanoparticulate phosphides containing different equimolar metal (M = Fe, Co, Ni) components. Notable trends in OER activity are observed, following the order of FeP < NiP < CoP < FeNiP < FeCoP < CoNiP < FeCoNiP, which indicate that the introduction of a secondary metal(s) to a mono-metallic TMP substantially boosts the OER performance. We ascribe the promotional effect to the enhanced oxidizing power of bi- and tri-metallic TMPs that can facilitate the formation of MOH and chemical adsorption of OH− groups, which are the rate-limiting steps for these catalysts according to our Tafel analysis. Remarkably, the tri-metallic FeCoNiP pre-catalyst exhibits exceptionally high apparent and intrinsic OER activities, requiring only 200 mV to deliver 10 mA cm−2 and showing a high turnover frequency (TOF) of ≥0.94 s−1 at the overpotential of 350 mV.Amori Lifeng Liu* ; I ; J.Y. Xu ; D. H. Xiong
Template-free synthesis of hollow iron phosphide-phosphate composite nanotubes for use as efficient and durable oxygen evolution catalysts Journal Article
ACS Applied Nano Materials, 2018.
@article{Xu2018bb,
title = {Template-free synthesis of hollow iron phosphide-phosphate composite nanotubes for use as efficient and durable oxygen evolution catalysts},
author = {Amori Lifeng Liu* ; I ; J.Y. Xu ; D. H. Xiong},
url = {https://pubs.acs.org/doi/abs/10.1021/acsanm.7b00122},
doi = {10.1021/acsanm.7b00122},
year = {2018},
date = {2018-01-29},
journal = {ACS Applied Nano Materials},
abstract = {The oxygen evolution reaction (OER) is a half-cell reaction that is of importance to many electrochemical processes, especially for electrochemical and photoelectrochemical water splitting. Developing efficient, durable, and low-cost OER electrocatalysts comprising Earth-abundant elements has been in the focus of electrocatalysis research. Herein, we report a cost-effective, scalable, and template-free approach to the fabrication of hollow iron phosphide–phosphate (FeP–FePxOy) composite nanotubes (NTs), which is realized by hydrothermal growth of iron oxy-hydroxide nanorods (NRs) and a subsequent postphosphorization treatment. The hollow interior of NTs results from the Kirkendall effect occurring upon phosphorization. When used to catalyze the OER in basic medium, the as-synthesized FeP–FePxOy composite NTs exhibit excellent catalytic activity, delivering the benchmark current density of 10 mA cm–2 at a low overpotential of 280 mV and showing a small Tafel slope of 48 mV dec–1 and a high turnover frequency of 0.10 s–1 at the overpotential of 350 mV. Moreover, the composite NTs demonstrate outstanding long-term stability, capable of catalyzing the OER at 10 mA cm–2 for 42 h without increasing the overpotential, holding substantial potential for use as active and inexpensive anode catalysts in water electrolyzers.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}The oxygen evolution reaction (OER) is a half-cell reaction that is of importance to many electrochemical processes, especially for electrochemical and photoelectrochemical water splitting. Developing efficient, durable, and low-cost OER electrocatalysts comprising Earth-abundant elements has been in the focus of electrocatalysis research. Herein, we report a cost-effective, scalable, and template-free approach to the fabrication of hollow iron phosphide–phosphate (FeP–FePxOy) composite nanotubes (NTs), which is realized by hydrothermal growth of iron oxy-hydroxide nanorods (NRs) and a subsequent postphosphorization treatment. The hollow interior of NTs results from the Kirkendall effect occurring upon phosphorization. When used to catalyze the OER in basic medium, the as-synthesized FeP–FePxOy composite NTs exhibit excellent catalytic activity, delivering the benchmark current density of 10 mA cm–2 at a low overpotential of 280 mV and showing a small Tafel slope of 48 mV dec–1 and a high turnover frequency of 0.10 s–1 at the overpotential of 350 mV. Moreover, the composite NTs demonstrate outstanding long-term stability, capable of catalyzing the OER at 10 mA cm–2 for 42 h without increasing the overpotential, holding substantial potential for use as active and inexpensive anode catalysts in water electrolyzers. -
2017
Santosh KumarVerma Baoshun Liu Xiujian Zhao Lifeng Liu Hong Li Zijuan Du Dehua Xiong
Inorganic Chem. Frontier, 5 , 2017.
@article{Du2017b,
title = {Low temperature hydrothermal synthesize delafossite CuCoO2 as an efficient electrocatalyst for the oxygen evolution reaction in alkaline solution},
author = {Santosh KumarVerma Baoshun Liu Xiujian Zhao Lifeng Liu Hong Li Zijuan Du Dehua Xiong},
url = {https://www.researchgate.net/publication/321028680_Low_temperature_hydrothermal_synthesize_delafossite_CuCoO2_as_an_efficient_electrocatalyst_for_the_oxygen_evolution_reaction_in_alkaline_solution [accessed Feb 01 2019].},
doi = {DOI:10.1039/C7QI00621G},
year = {2017},
date = {2017-11-14},
journal = {Inorganic Chem. Frontier},
volume = {5},
abstract = {Herein, we report the low temperature hydrothermal synthesis of delafossite CuCoO2 crystals at 100 °C. The structural, morphological and compositional characterization of CuCoO2 crystals were performed by powder X-ray diffraction (PXRD), field-emission scanning electron microscopy (FESEM) and X-ray photoelectron spectroscopy (XPS). Furthermore, the thermal stability of CuCoO2 in air and its electro-catalytic activity toward the oxygen evolution reaction (OER) have also been investigated.
(PDF) Low temperature hydrothermal synthesize delafossite CuCoO2 as an efficient electrocatalyst for the oxygen evolution reaction in alkaline solution.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Herein, we report the low temperature hydrothermal synthesis of delafossite CuCoO2 crystals at 100 °C. The structural, morphological and compositional characterization of CuCoO2 crystals were performed by powder X-ray diffraction (PXRD), field-emission scanning electron microscopy (FESEM) and X-ray photoelectron spectroscopy (XPS). Furthermore, the thermal stability of CuCoO2 in air and its electro-catalytic activity toward the oxygen evolution reaction (OER) have also been investigated.
(PDF) Low temperature hydrothermal synthesize delafossite CuCoO2 as an efficient electrocatalyst for the oxygen evolution reaction in alkaline solution.Santosh Kumar Verma Baoshun Liu Xiujian Zhao Lifeng Liu * Zijuan Du Dehua Xiong and Hong Li*
Inorganic Chem. Frontier, 2017.
@article{Du2017b,
title = {Low temperature hydrothermal synthesize delafossite CuCoO2 as an efficient electrocatalyst for the oxygen evolution reaction in alkaline solution},
author = {Santosh Kumar Verma Baoshun Liu Xiujian Zhao Lifeng Liu * Zijuan Du Dehua Xiong and Hong Li*},
url = {http://pubs.rsc.org/en/content/articlelanding/2018/qi/c7qi00621g#!divAbstract},
doi = {10.1039/C7QI00621G},
year = {2017},
date = {2017-11-13},
journal = {Inorganic Chem. Frontier},
abstract = {Herein, we report the low temperature hydrothermal synthesis of delafossite CuCoO2 crystals at 100 °C. The structural, morphological and compositional characterization of CuCoO2 crystals was performed by powder X-ray diffraction (PXRD), field-emission scanning electron microscopy (FESEM) and X-ray photoelectron spectroscopy (XPS). Furthermore, the thermal stability of CuCoO2 in air and its electro-catalytic activity toward the oxygen evolution reaction (OER) have also been investigated.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Herein, we report the low temperature hydrothermal synthesis of delafossite CuCoO2 crystals at 100 °C. The structural, morphological and compositional characterization of CuCoO2 crystals was performed by powder X-ray diffraction (PXRD), field-emission scanning electron microscopy (FESEM) and X-ray photoelectron spectroscopy (XPS). Furthermore, the thermal stability of CuCoO2 in air and its electro-catalytic activity toward the oxygen evolution reaction (OER) have also been investigated.Gao Song Xia Lifeng Liu* X F W G F W. Li D. H. Xiong
Self-supported Co-Ni-P ternary nanowire electrodes for highly efficient and stable electrocatalytic hydrogen evolution in acidic solution Journal Article
Catalysis Today, 287 , pp. 122, 2017.
@article{Li2017c,
title = {Self-supported Co-Ni-P ternary nanowire electrodes for highly efficient and stable electrocatalytic hydrogen evolution in acidic solution},
author = {Gao Song Xia Lifeng Liu* X F W G F W. Li D. H. Xiong},
url = {http://www.sciencedirect.com/science/article/pii/S0920586116305612},
year = {2017},
date = {2017-06-01},
journal = {Catalysis Today},
volume = {287},
pages = {122},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Xiong Wei Song Xu Lifeng Liu* D H F W G J Y W. Li X. F. Gao
Advanced Energy Materials, 2017.
@article{Li2017bb,
title = {Hydrothermal synthesis of monolithic Co3Se4 nanowire electrodes for oxygen evolution and overall water splitting with high efficiency and extraordinary catalytic stability},
author = {Xiong Wei Song Xu Lifeng Liu* D H F W G J Y W. Li X. F. Gao},
doi = {10.1002/aenm.201602579},
year = {2017},
date = {2017-05-10},
journal = {Advanced Energy Materials},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Lifeng Liu
Atomic layer deposition of electrocatalysts for use in fuel cells and electrolyzers Book Chapter
Chapter 5, Wiley-VCH Julien Bachmann Ed., 2017, (Chapter 5 in book Atomic Layer Deposition in Energy Conversion Applications).
@inbook{Liu2017,
title = {Atomic layer deposition of electrocatalysts for use in fuel cells and electrolyzers},
author = {Lifeng Liu},
year = {2017},
date = {2017-05-01},
edition = {Wiley-VCH Julien Bachmann Ed.},
chapter = {5},
note = {Chapter 5 in book Atomic Layer Deposition in Energy Conversion Applications},
keywords = {},
pubstate = {published},
tppubtype = {inbook}
}Lifeng Liu* D. H. Xiong W. Li
Chem Asian J., 12 , pp. 543, 2017.
@article{Xiong2017,
title = {Vertically-aligned porous Ni(OH)2 nanosheets supported on carbon paper with long-term oxygen evolution performance superior to RuO2 nanocatalysts},
author = {Lifeng Liu* D. H. Xiong W. Li},
url = {http://onlinelibrary.wiley.com/doi/10.1002/asia.201601590/full},
year = {2017},
date = {2017-02-07},
journal = {Chem Asian J.},
volume = {12},
pages = {543},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Thalluri Xu Li Fu Liu* S M J Y W X L L F D. H. Xiong Q. Q. Zhang
Chemistry – A European Journal, 2017.
@article{Xiong2017b,
title = {One-step fabrication of monolithic electrodes comprising Co9S8 particles supported on cobalt foam for efficient and durable oxygen evolution reaction},
author = {Thalluri Xu Li Fu Liu* S M J Y W X L L F D. H. Xiong Q. Q. Zhang},
doi = {10.1002/chem.201701391},
year = {2017},
date = {2017-02-06},
journal = {Chemistry – A European Journal},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Li Li Fu Cerqueira Alpuim Lifeng Liu W J J X L M F P D.H. Xiong Q.Q. Zhang
Atomic-layer-deposited ultrafine MoS2 nanocrystals on cobalt foam for efficient and stable electrochemical oxygen evolution Journal Article
Nanoscale, 9 , pp. 2711, 2017.
@article{Xiong2017bb,
title = {Atomic-layer-deposited ultrafine MoS2 nanocrystals on cobalt foam for efficient and stable electrochemical oxygen evolution},
author = {Li Li Fu Cerqueira Alpuim Lifeng Liu W J J X L M F P D.H. Xiong Q.Q. Zhang},
url = {http://pubs.rsc.org/en/content/articlelanding/2017/nr/c7nr00140a#!divAbstract},
year = {2017},
date = {2017-01-30},
journal = {Nanoscale},
volume = {9},
pages = {2711},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Xiong Xia Liu Song Xu Thalluri Fu Lifeng Liu* D H F J W G J Y S M X L W. Li X. F. Gao
Vapor-solid synthesis of monolithic single-crystalline CoP nanowire electrodes for efficient and robust water electrolysis Journal Article
Chem. Sci, 8 , pp. 2952, 2017.
@article{Li2017bc,
title = {Vapor-solid synthesis of monolithic single-crystalline CoP nanowire electrodes for efficient and robust water electrolysis},
author = {Xiong Xia Liu Song Xu Thalluri Fu Lifeng Liu* D H F J W G J Y S M X L W. Li X. F. Gao},
url = {http://pubs.rsc.org/en/content/articlelanding/2017/sc/c6sc05167g#!divAbstract},
year = {2017},
date = {2017-01-23},
journal = {Chem. Sci},
volume = {8},
pages = {2952},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Lu Lifeng Liu Liu Sun Yin Oswald Ding Schmidt X L L X X L Y S F O G Shaozhuan Huang* Lin Zhang*
Tunable pseudocapacitance in 3D Ti3+ self-doped TiO2 nanomembranes enabling superior lithium storage performance Journal Article
ACS Nano, 11 , pp. 821, 2017.
@article{Huang2017,
title = {Tunable pseudocapacitance in 3D Ti3+ self-doped TiO2 nanomembranes enabling superior lithium storage performance},
author = {Lu Lifeng Liu Liu Sun Yin Oswald Ding Schmidt X L L X X L Y S F O G Shaozhuan Huang* Lin Zhang*},
url = {https://www.researchgate.net/publication/311948019_Tunable_Pseudocapacitance_in_3D_TiO2-d_Nanomembranes_Enabling_Superior_Lithium_Storage_Performance},
year = {2017},
date = {2017-01-01},
journal = {ACS Nano},
volume = {11},
pages = {821},
keywords = {},
pubstate = {published},
tppubtype = {article}
} -
2016
Lifeng Liu* M. Kundu
Sci. Adv. Today, 2 , pp. 25252, 2016.
@article{Kundu2016,
title = {Easy fabrication of nanohybrids comprising Co3O4 nanoparticles on electrospun carbon nanofibers for use as binder-free lithium-ion battery anodes},
author = {Lifeng Liu* M. Kundu},
url = {https://www.researchgate.net/publication/311456682_Easy_fabrication_of_nanohybrids_comprising_Co3O4_nanoparticles_on_electrospun_carbon_nanofibers_for_use_as_binder-free_lithium-ion_battery_anodes},
year = {2016},
date = {2016-12-01},
journal = {Sci. Adv. Today},
volume = {2},
pages = {25252},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Wang Lifeng Liu* X G D. H. Xiong W. Li
Surface passivation of hematite photoanodes with a phosphorus overlayer for enhanced photoelectrochemical water oxidation Journal Article
Nanotechnology, 27 , pp. 375401, 2016.
@article{Xiong2016b,
title = {Surface passivation of hematite photoanodes with a phosphorus overlayer for enhanced photoelectrochemical water oxidation},
author = {Wang Lifeng Liu* X G D. H. Xiong W. Li},
url = {https://www.researchgate.net/publication/305822737_Passivation_of_hematite_nanorod_photoanodes_with_a_phosphorus_overlayer_for_enhanced_photoelectrochemical_water_oxidation},
year = {2016},
date = {2016-09-01},
journal = {Nanotechnology},
volume = {27},
pages = {375401},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Wang Xiong Huang Guo Bao Lifeng Liu* X G D H P P W G X Q W. Li X. F. Gao
From water reduction to oxidation: Janus Co-Ni-P nanowires as high-efficiency and ultrastable electrocatalysts for over 3000 h water splitting Journal Article
Journal of Power Sources, 330 , pp. 156, 2016.
@article{Li2016b,
title = {From water reduction to oxidation: Janus Co-Ni-P nanowires as high-efficiency and ultrastable electrocatalysts for over 3000 h water splitting},
author = {Wang Xiong Huang Guo Bao Lifeng Liu* X G D H P P W G X Q W. Li X. F. Gao},
url = {https://www.researchgate.net/publication/307967490_From_water_reduction_to_oxidation_Janus_Co-Ni-P_nanowires_as_high-efficiency_and_ultrastable_electrocatalysts_for_over_3000_h_water_splitting},
year = {2016},
date = {2016-09-01},
journal = {Journal of Power Sources},
volume = {330},
pages = {156},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Kundu Attila Goren Maria Silva Lifeng Liu Senentxu Lanceros-Mendez* M Joao Nunes-Pereira Manab
Effect of filler type on poly(vinylidene fluoride-co-trifluoroethylene) based composite separator membranes on Li-ion battery performance Journal Article
Composites Part B, 96 , pp. 94-102, 2016.
@article{Nunes-Pereira2016,
title = {Effect of filler type on poly(vinylidene fluoride-co-trifluoroethylene) based composite separator membranes on Li-ion battery performance},
author = {Kundu Attila Goren Maria Silva Lifeng Liu Senentxu Lanceros-Mendez* M Joao Nunes-Pereira Manab},
url = {https://www.researchgate.net/publication/301719540_Optimization_of_filler_type_within_polyvinylidene_fluoride-co-trifluoroethylene_composite_separator_membranes_for_improved_lithium-ion_battery_performance},
year = {2016},
date = {2016-07-01},
journal = {Composites Part B},
volume = {96},
pages = {94-102},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Li Lifeng Liu* W Dehua Xiong X. G. Wang
Facile synthesis of iron phosphide nanorods for efficient and durable electrochemical oxygen evolution Journal Article
Chem. Commun, 52 , pp. 8711-8714, 2016.
@article{Xiong2016b,
title = {Facile synthesis of iron phosphide nanorods for efficient and durable electrochemical oxygen evolution},
author = {Li Lifeng Liu* W Dehua Xiong X. G. Wang},
url = {https://www.researchgate.net/publication/303994209_Facile_synthesis_of_iron_phosphide_nanorods_for_efficient_and_durable_electrochemical_oxygen_evolution},
year = {2016},
date = {2016-06-01},
journal = {Chem. Commun},
volume = {52},
pages = {8711-8714},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Xiong Lifeng Liu* D H X. G. Wang W. Li
Fast fabrication of self-supported porous nickel phosphide foam for efficient, durable oxygen evolution and overall water splitting Journal Article
J. Mater. Chem, 4 , pp. 5639, 2016.
@article{Wang2016,
title = {Fast fabrication of self-supported porous nickel phosphide foam for efficient, durable oxygen evolution and overall water splitting},
author = {Xiong Lifeng Liu* D H X. G. Wang W. Li},
year = {2016},
date = {2016-04-01},
journal = {J. Mater. Chem},
volume = {4},
pages = {5639},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Xiong Petrovykh Lifeng Liu* D H D Y X. G. Wang W. Li
Adv. Funct. Mater., 26 , pp. 4067-4077, 2016.
@article{Wang2016b,
title = {Efficient and stable overall electrochemical water splitting using self-supported carbon paper electrodes integrated with bi-functional nickel phosphide catalysts},
author = {Xiong Petrovykh Lifeng Liu* D H D Y X. G. Wang W. Li},
url = {https://www.researchgate.net/publication/301230094_Bifunctional_Nickel_Phosphide_Nanocatalysts_Supported_on_Carbon_Fiber_Paper_for_Highly_Efficient_and_Stable_Overall_Water_Splitting},
year = {2016},
date = {2016-04-01},
journal = {Adv. Funct. Mater.},
volume = {26},
pages = {4067-4077},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Xiong Lifeng Liu* D H W. Li X. G. Wang
Efficient and durable electrochemical hydrogen evolution using cocoon-like MoS2 with preferentially exposed edges Journal Article
Int. J. Hydrogen Energy 2016, 41, 9344-9354, 41 , pp. 9344-9354, 2016.
@article{Li2016c,
title = {Efficient and durable electrochemical hydrogen evolution using cocoon-like MoS2 with preferentially exposed edges},
author = {Xiong Lifeng Liu* D H W. Li X. G. Wang},
url = {https://www.researchgate.net/publication/301759885_Efficient_and_durable_electrochemical_hydrogen_evolution_using_cocoon-like_MoS2_with_preferentially_exposed_edges},
year = {2016},
date = {2016-04-01},
journal = {Int. J. Hydrogen Energy 2016, 41, 9344-9354},
volume = {41},
pages = {9344-9354},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Lifeng Liu Wang Zeng Xie Jin Zhang H Y W J C H * Z C. Y. Wu W. Huang
Synthesis and phase transformation of hierarchical structure LiFePO4 for Li-ion Battery Journal Article
CrystEngComm, 18 , pp. 7707, 2016.
@article{Wu2016,
title = {Synthesis and phase transformation of hierarchical structure LiFePO4 for Li-ion Battery},
author = {Lifeng Liu Wang Zeng Xie Jin Zhang H Y W J C H * Z C. Y. Wu W. Huang},
url = {https://www.researchgate.net/publication/305423204_Facile_synthesis_of_hierarchical_b-LiFePO4_and_its_phase_transformation_to_electrochemically_active_a-LiFePO4_for_li-ion_battery},
year = {2016},
date = {2016-01-01},
journal = {CrystEngComm},
volume = {18},
pages = {7707},
keywords = {},
pubstate = {published},
tppubtype = {article}
} -
2015
Lifeng Liu
Efficient water oxidation using α-Fe2O3 thin films conformally coated on vertically aligned titania nanotube arrays by atomic layer deposition Journal Article
Mater. Lett., 159 , pp. 284-288, 2015.
@article{Liu2015,
title = {Efficient water oxidation using α-Fe2O3 thin films conformally coated on vertically aligned titania nanotube arrays by atomic layer deposition},
author = {Lifeng Liu},
url = {https://www.researchgate.net/publication/280832195_Efficient_water_oxidation_using_a-Fe2O3_thin_films_conformally_coated_on_vertically_aligned_titania_nanotube_arrays_by_atomic_layer_deposition},
year = {2015},
date = {2015-11-01},
journal = {Mater. Lett.},
volume = {159},
pages = {284-288},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Rodriguez Fatima Cerqueira Petrovykh Lifeng Liu Kolen’ko C M D Y Y V Enrique Carbo-Argibay X.Q. Bao
Up-scaling the Synthesis of Cu2O Submicron Particles with Controlled Morphologies for Solar H2 Evolution from Water Journal Article
J. Colloid. Interf. Sci., 456 , pp. 219-227, 2015.
@article{Carbo-Argibay2015,
title = {Up-scaling the Synthesis of Cu2O Submicron Particles with Controlled Morphologies for Solar H2 Evolution from Water},
author = {Rodriguez Fatima Cerqueira Petrovykh Lifeng Liu Kolen’ko C M D Y Y V Enrique Carbo-Argibay X.Q. Bao},
url = {https://www.researchgate.net/publication/278404169_Up-scaling_the_Synthesis_of_Cu2O_Submicron_Particles_with_Controlled_Morphologies_for_Solar_H2_Evolution_from_Water},
year = {2015},
date = {2015-10-01},
journal = {J. Colloid. Interf. Sci.},
volume = {456},
pages = {219-227},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Xiong Qin Yan* J * Y C L Y. Chen Lifeng Liu
Porous Si nanowires from cheap metallurgical silicon stabilized by surface oxide layer for lithium ion batteries Journal Article
Adv. Energy Mater, 2015.
@article{Chen2015,
title = {Porous Si nanowires from cheap metallurgical silicon stabilized by surface oxide layer for lithium ion batteries},
author = {Xiong Qin Yan* J * Y C L Y. Chen Lifeng Liu},
url = {https://www.researchgate.net/publication/282749354_Porous_Si_Nanowires_from_Cheap_Metallurgical_Silicon_Stabilized_by_a_Surface_Oxide_Layer_for_Lithium_Ion_Batteries},
doi = {10.1002/adfm.201503206},
year = {2015},
date = {2015-10-01},
journal = {Adv. Energy Mater},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Goren Silva Lifeng Liu Costa Lanceros-Mendez A M M C M S R. E. Sousa M. Kundu
Poly(vinylidene fluoride-co-chlorotrifluoroethylene) (PVDF-CTFE) lithium-ion battery separator membranes prepared by phase inversion Journal Article
RSC Adv, 5 , pp. 90428-90436, 2015.
@article{Sousa2015,
title = {Poly(vinylidene fluoride-co-chlorotrifluoroethylene) (PVDF-CTFE) lithium-ion battery separator membranes prepared by phase inversion},
author = {Goren Silva Lifeng Liu Costa Lanceros-Mendez A M M C M S R. E. Sousa M. Kundu},
url = {https://www.researchgate.net/publication/283243523_Polyvinylidene_fluoride-co-chlorotrifluoroethylene_PVDF-CTFE_lithium-ion_battery_separator_membranes_prepared_by_phase_inversion},
year = {2015},
date = {2015-10-01},
journal = {RSC Adv},
volume = {5},
pages = {90428-90436},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Alpuim Stroppa Guldris Costa Fonseca Gaspar Jin Lifeng Liu* P D N M H J C H X.Q. Bao D. Petrovykh
Amorphous molybdenum oxysulfide modified p-type silicon microwire arrays for efficient photoelectrochemical water splitting Journal Article
Nano Energy, 16 , pp. 130-142, 2015.
@article{Bao2015b,
title = {Amorphous molybdenum oxysulfide modified p-type silicon microwire arrays for efficient photoelectrochemical water splitting},
author = {Alpuim Stroppa Guldris Costa Fonseca Gaspar Jin Lifeng Liu* P D N M H J C H X.Q. Bao D. Petrovykh},
url = {https://www.researchgate.net/publication/280832158_Amorphous_oxygen-rich_molybdenum_oxysulfide_Decorated_p-type_silicon_microwire_Arrays_for_efficient_photoelectrochemical_water_reduction},
year = {2015},
date = {2015-09-02},
journal = {Nano Energy},
volume = {16},
pages = {130-142},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Paz Carbo-Argibay Rodriguez-Abreu Lifeng Liu Kovnir Kolen’ko E E C K Y V .L. Lado X.G. Wang
Design and synthesis of a novel highly active Al-Ni-P foam electrode for hydrogen evolution reaction Journal Article
ACS Catalysis, 5 , pp. 6503, 2015.
@article{Lado2015c,
title = {Design and synthesis of a novel highly active Al-Ni-P foam electrode for hydrogen evolution reaction},
author = {Paz Carbo-Argibay Rodriguez-Abreu Lifeng Liu Kovnir Kolen’ko E E C K Y V .L. Lado X.G. Wang},
url = {https://www.researchgate.net/publication/282512404_Design_and_Synthesis_of_Highly_Active_Al-Ni-P_Foam_Electrode_for_Hydrogen_Evolution_Reaction},
year = {2015},
date = {2015-09-02},
journal = {ACS Catalysis},
volume = {5},
pages = {6503},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Bao Kovnir Lifeng Liu X Q K X.G. Wang Y.V. Kolen’ko
One-step synthesis of self-supported nickel phosphide nanosheet array cathodes for efficient electrocatalytic H2 generation Journal Article
Angew. Chem. Int. Ed. 2015, 54 , pp. 8188, 2015.
@article{Wang2015b,
title = {One-step synthesis of self-supported nickel phosphide nanosheet array cathodes for efficient electrocatalytic H2 generation},
author = {Bao Kovnir Lifeng Liu X Q K X.G. Wang Y.V. Kolen’ko},
url = {https://www.researchgate.net/publication/277560898_One-Step_Synthesis_of_Self-Supported_Nickel_Phosphide_Nanosheet_Array_Cathodes_for_Efficient_Electrocatalytic_Hydrogen_Generation},
year = {2015},
date = {2015-06-06},
journal = {Angew. Chem. Int. Ed. 2015},
volume = {54},
pages = {8188},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Si Lifeng Liu Yan Oswald Schmidt W P C L S O G X.Y. Lu J.W. Deng
Trilayered Pd/MnOx/Pd Nanomembranes as Cathode Materials for Rechargeable Li-O2 Batteries with Extremely Low Charge Potential Journal Article
Adv. Sci. 2015, 51 , pp. 1500113, 2015.
@article{Lu2015,
title = {Trilayered Pd/MnOx/Pd Nanomembranes as Cathode Materials for Rechargeable Li-O2 Batteries with Extremely Low Charge Potential},
author = {Si Lifeng Liu Yan Oswald Schmidt W P C L S O G X.Y. Lu J.W. Deng},
url = {https://www.researchgate.net/publication/277337423_High-Performance_Li-O2_Batteries_with_Trilayered_PdMnOxPd_Nanomembranes?_iepl%5BviewId%5D=WCzXbhkWBOatiJM4GwmTuoZF&_iepl%5Bcontexts%5D%5B0%5D=timeline&_iepl%5Bdata%5D%5BactivityData%5D%5BactivityId%5D=277337423&_iepl%5Bdata%5D%5BactivityData%5D%5BactivityType%5D=Publication&_iepl%5Bdata%5D%5BactivityData%5D%5BactivityTimestamp%5D=1430438400&_iepl%5Bdata%5D%5BviewType%5D=self&_iepl%5BinteractionType%5D=publicationClickThrough},
year = {2015},
date = {2015-05-01},
journal = {Adv. Sci. 2015},
volume = {51},
pages = {1500113},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Pedro Alpuim Lifeng Liu * Xiao-Qing Bao M. Fatima Cerqueira
Silicon Nanowire Arrays Coupled with Cobalt Phosphide Spheres as A Low-Cost Photocathode for Efficient Solar Hydrogen Evolution Journal Article
Chem. Commun, 51 , pp. 10742-17045, 2015.
@article{Bao2015b,
title = {Silicon Nanowire Arrays Coupled with Cobalt Phosphide Spheres as A Low-Cost Photocathode for Efficient Solar Hydrogen Evolution},
author = {Pedro Alpuim Lifeng Liu * Xiao-Qing Bao M. Fatima Cerqueira},
url = {http://pubs.rsc.org/en/content/articlelanding/2015/cc/c5cc02331a#!divAbstract},
year = {2015},
date = {2015-05-01},
journal = {Chem. Commun},
volume = {51},
pages = {10742-17045},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Lifeng Liu* M. Kundu
Binder-free electrodes consisting of porous NiO nanofibers directly electrospun on nickel foam for high-rate supercapacitors Journal Article
Mater. Lett., 144 , pp. 114, 2015.
@article{Kundu2015b,
title = {Binder-free electrodes consisting of porous NiO nanofibers directly electrospun on nickel foam for high-rate supercapacitors},
author = {Lifeng Liu* M. Kundu},
url = {https://www.researchgate.net/publication/271773568_Binder-free_electrodes_consisting_of_porous_NiO_nanofibers_directly_electrospun_on_nickel_foam_for_high-rate_supercapacitors},
year = {2015},
date = {2015-04-01},
journal = {Mater. Lett.},
volume = {144},
pages = {114},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Lifeng Liu* X.G. Wang Y.V. Ko’lenko
Chem. Commun, 51 , pp. 6738, 2015, (Highlighted as back cover).
@article{Wang2015b,
title = {Direct solvothermal phosphorization of nickel foam to fabricate Ni2P-nanorods/Ni integrated electrodes for efficient electrocatalytic hydrogen evolution},
author = {Lifeng Liu* X.G. Wang Y.V. Ko’lenko},
url = {https://www.researchgate.net/publication/273325434_Direct_solvothermal_phosphorization_of_nickel_foam_to_fabricate_integrated_Ni2P-nanorodsNi_electrodes_for_efficient_electrocatalytic_hydrogen_evolution},
year = {2015},
date = {2015-03-06},
journal = {Chem. Commun},
volume = {51},
pages = {6738},
note = {Highlighted as back cover},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Lifeng Liu M. Kundu
Electrospun porous nickel oxide nanofibers for high-performance electrochemical energy storage Journal Article
Sci. Lett. J., 4 , pp. 123, 2015.
@article{Kundu2015b,
title = {Electrospun porous nickel oxide nanofibers for high-performance electrochemical energy storage},
author = {Lifeng Liu M. Kundu},
url = {https://www.researchgate.net/publication/269687837_Electrospun_porous_nickel_oxide_nanofibers_for_high-performance_electrochemical_energy_storage},
year = {2015},
date = {2015-02-01},
journal = {Sci. Lett. J.},
volume = {4},
pages = {123},
keywords = {},
pubstate = {published},
tppubtype = {article}
} -
2014
X.Q. Bao Lifeng Liu*
Improved photo-stability of silicon nanobelt arrays by atomic layer deposition for efficient photocatalytic hydrogen evolution Journal Article
J. Power Sources, 268 , pp. 677, 2014.
@article{Bao2014b,
title = {Improved photo-stability of silicon nanobelt arrays by atomic layer deposition for efficient photocatalytic hydrogen evolution},
author = {X.Q. Bao Lifeng Liu*},
url = {https://www.researchgate.net/publication/263896526_Improved_photo-stability_of_silicon_nanobelt_arrays_by_atomic_layer_deposition_for_efficient_photocatalytic_hydrogen_evolution},
year = {2014},
date = {2014-12-03},
journal = {J. Power Sources},
volume = {268},
pages = {677},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Sun Deng Baunack Oswald Lifeng Liu Yan Schmidt X L J W S S C L * O G X.H. Liu * W.P. Si
Free-Standing Fe2O3 Nanomembranes as Anodes for Li-Ion Batteries with Long Cycling Life and High-Rate Capability Journal Article
Sci. Reports, 4 , pp. 7452, 2014.
@article{Liu2014b,
title = {Free-Standing Fe2O3 Nanomembranes as Anodes for Li-Ion Batteries with Long Cycling Life and High-Rate Capability},
author = {Sun Deng Baunack Oswald Lifeng Liu Yan Schmidt X L J W S S C L * O G X.H. Liu * W.P. Si},
url = {https://www.researchgate.net/publication/269774870_Free-standing_Fe2O3_nanomembranes_enabling_ultra-long_cycling_life_and_high_rate_capability_for_Li-ion_batteries},
year = {2014},
date = {2014-12-03},
journal = {Sci. Reports},
volume = {4},
pages = {7452},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Liu Deng Xi Lifeng Liu Yan Schmidt X H J W L X C L O G X.L. Sun W.P. Si
Multifunctional nickel/oxide hybrid nanomembranes as anode materials for high-performance Li-ion batteries Journal Article
Nano Energy, 9 , pp. 168, 2014.
@article{Sun2014b,
title = {Multifunctional nickel/oxide hybrid nanomembranes as anode materials for high-performance Li-ion batteries},
author = {Liu Deng Xi Lifeng Liu Yan Schmidt X H J W L X C L O G X.L. Sun W.P. Si},
url = {https://www.researchgate.net/publication/263277902_Multifunctional_NiNiO_hybrid_nanomembranes_as_anode_materials_for_high-rate_Li-ion_batteries},
year = {2014},
date = {2014-10-02},
journal = {Nano Energy},
volume = {9},
pages = {168},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Lifeng Liu Si Oswald Xi Kundu Ma Gemming Baunack Ding Yan Schmidt W P S L X M G Z T S F C L O G L. Zhang* J.W. Deng
Hierarchically designed SiOx/SiOy bilayer nanomembranes as stable anodes for lithium ion batteries Journal Article
Adv. Mater, 26 , pp. 4527, 2014.
@article{Sun2014bb,
title = {Hierarchically designed SiOx/SiOy bilayer nanomembranes as stable anodes for lithium ion batteries},
author = {Lifeng Liu Si Oswald Xi Kundu Ma Gemming Baunack Ding Yan Schmidt W P S L X M G Z T S F C L O G L. Zhang* J.W. Deng},
url = {https://www.researchgate.net/publication/262024171_Hierarchically_Designed_SiOxSiOy_Bilayer_Nanomembranes_as_Stable_Anodes_for_Lithium_Ion_Batteries},
year = {2014},
date = {2014-07-05},
journal = {Adv. Mater},
volume = {26},
pages = {4527},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Bao * X Q Lifeng Liu
Silicon nanowires fabricated by porous gold thin film assisted chemical etching and their photoelectrochemical properties Journal Article
Mater. Lett., 125 , pp. 28-31, 2014.
@article{Liu2014bb,
title = {Silicon nanowires fabricated by porous gold thin film assisted chemical etching and their photoelectrochemical properties},
author = {Bao * X Q Lifeng Liu},
url = {https://www.researchgate.net/publication/261564568_Silicon_nanowires_fabricated_by_porous_gold_thin_film_assisted_chemical_etching_and_their_photoelectrochemical_properties},
year = {2014},
date = {2014-06-01},
journal = {Mater. Lett.},
volume = {125},
pages = {28-31},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Chen Si Deng Oswald Lifeng Liu Schmidt * Y W P J W S O G X.L. Sun C.L. Yan
Three-dimensionally curved NiO nanomembranes as ultra high rate capability anodes for Li-ion batteries with long cycle life Journal Article
Nanoscale, 6 , pp. 2097-2101, 2014.
@article{Sun2014c,
title = {Three-dimensionally curved NiO nanomembranes as ultra high rate capability anodes for Li-ion batteries with long cycle life},
author = {Chen Si Deng Oswald Lifeng Liu Schmidt * Y W P J W S O G X.L. Sun C.L. Yan},
url = {https://www.researchgate.net/publication/259651917_Ordered_arrays_of_tilted_silicon_nanobelts_with_enhanced_solar_hydrogen_evolution_performance},
year = {2014},
date = {2014-01-02},
journal = {Nanoscale},
volume = {6},
pages = {2097-2101},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Xingsen Gao Lifeng Liu
Fabrication of Bi2Fe4O9 nanotubes decorated with iron-rich nanorings by Rayleigh instability induced sol-gel synthesis in porous anodic alumina Journal Article
J. Nanosci. Lett., 4 , pp. 6, 2014.
@article{Liu2014c,
title = {Fabrication of Bi2Fe4O9 nanotubes decorated with iron-rich nanorings by Rayleigh instability induced sol-gel synthesis in porous anodic alumina},
author = {Xingsen Gao Lifeng Liu},
url = {https://www.researchgate.net/publication/257920986_Fabrication_of_Bi2Fe4O9_nanotubes_decorated_with_iron-rich_nanorings_by_Rayleigh_instability_induced_sol-gel_synthesis_in_porous_anodic_alumina},
year = {2014},
date = {2014-01-01},
journal = {J. Nanosci. Lett.},
volume = {4},
pages = {6},
keywords = {},
pubstate = {published},
tppubtype = {article}
} -
2013
Lifeng Liu
Nano-aggregates of cobalt nickel oxysulfide as a high-performance electrode material for supercapacitors Journal Article
Nanscale, 5 , pp. 11615, 2013.
@article{Liu2013b,
title = {Nano-aggregates of cobalt nickel oxysulfide as a high-performance electrode material for supercapacitors},
author = {Lifeng Liu},
url = {https://www.researchgate.net/publication/257814179_Nano-aggregates_of_cobalt_nickel_oxysulfide_as_a_high-performance_electrode_material_for_supercapacitors},
year = {2013},
date = {2013-10-01},
journal = {Nanscale},
volume = {5},
pages = {11615},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Lifeng Liu Manab Kundu
Direct growth of mesoporous MnO2 nanosheet arrays on nickel foam current collectors for high-performance pseudocapacitors Journal Article
J. Power Sources, (243), pp. 676, 2013.
@article{Kundu2013,
title = {Direct growth of mesoporous MnO2 nanosheet arrays on nickel foam current collectors for high-performance pseudocapacitors},
author = {Lifeng Liu Manab Kundu},
url = {https://www.researchgate.net/publication/249326281_Direct_growth_of_mesoporous_MnO2_nanosheet_arrays_on_nickel_foam_current_collectors_for_high-performance_pseudocapacitors},
year = {2013},
date = {2013-08-01},
journal = {J. Power Sources},
number = {243},
pages = {676},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Woo Lee Mato Knez Lifeng Liu Daoai Wang Lianbing Zhang
Novel three-dimensional nanoporous alumina as a template for hierarchical TiO2 nanotube arrays Journal Article
Small, 9 , pp. 1025, 2013.
@article{Wang2013b,
title = {Novel three-dimensional nanoporous alumina as a template for hierarchical TiO2 nanotube arrays},
author = {Woo Lee Mato Knez Lifeng Liu Daoai Wang Lianbing Zhang},
url = {https://www.researchgate.net/publication/236010667_Novel_Three-Dimensional_Nanoporous_Alumina_as_a_Template_for_Hierarchical_TiO2_Nanotube_Arrays},
year = {2013},
date = {2013-04-01},
journal = {Small},
volume = {9},
pages = {1025},
keywords = {},
pubstate = {published},
tppubtype = {article}
}Lifeng Liu
Porous Co16S16O96 nanosheets as a new electrode material for use in supercapacitors Journal Article
J. Power Sources, 239 , pp. 24, 2013.
@article{Liu2013b,
title = {Porous Co16S16O96 nanosheets as a new electrode material for use in supercapacitors},
author = {Lifeng Liu},
url = {https://www.researchgate.net/publication/236751704_Porous_Co16S16O96_nanosheets_as_a_new_electrode_material_for_use_in_supercapacitors},
year = {2013},
date = {2013-03-01},
journal = {J. Power Sources},
volume = {239},
pages = {24},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
GROUP LEADER
THE TEAM
Junyuan Xu
Research Fellow
Nan Zhang
Research Fellow
Mouli Thalluri
Research Fellow
Rajesh Thomas
Research Fellow
Zhixin Tai
Research Fellow
Bruno Xavier
Associate
Isilda Amorim
Associate
Yajie Liu
Associate
Yue Li
Associate
Zhipeng Yu
Associate
Ziyu Lu
Associate
Ana Araújo
Research Assistant
FORMER GROUP MEMBERS
Thomas LaTempa (Postdoc)
Teasha Fitztham (Intern from MIT)
Manab Kundu (Postdoc researcher, Norwegian University of Science and Technology, Norway)
Justin Bao (Institute of Optics and Electronics, Chinese Academy of Sciences)
Xiaoguang Wang (Taiyuan Institute of Technology, China)
Wei Li (Postdoc researcher, Utha State Unviersity, USA)
Dehua Xiong (Wuhan University of Technology, China)