TY - JOUR
T1 - Self-supported MoSx/V2O3 heterostructures as efficient hybrid catalysts for hydrogen evolution reaction
AU - Hu, Mingwei
AU - Huang, Jin
AU - Li, Qizhong
AU - Tu, Rong
AU - Zhang, Song
AU - Yang, Meijun
AU - Li, Haiwen
AU - Goto, Takashi
AU - Zhang, Lianmeng
N1 - Funding Information:
The authors acknowledge the support from the National Key Research and Development Program of China ( 2017YFB0310400 ), and the National Natural Science Foundation of China , No. 51372188 , 11602251 , 51872212 , 51861145306 and the 111 Project ( B13035 ), and Joint Fund of Ministry of Education for Pre-research of Equipment ( 201922JJ02 ). This research was also supported by the International Science & Technology Cooperation Program of China ( 2014DFA53090 ) and the Natural Science Foundation of Hubei Province, China ( 2016CFA006 ), and the Fundamental Research Funds for the Central Universities ( WUT: 2017YB004 , 2018YS003 , 2018YS016 , 2019III028 , 2019III030 ) and Science Challenge Project (No. TZ2016001 ), and the State Key Laboratory of Advanced Technology for Materials Synthesis and Processing (WUT, Grant No: 2019-KF-12 ).
PY - 2020/6/25
Y1 - 2020/6/25
N2 - Earth-abundant and low-cost hydrogen evolution reaction (HER) electrocatalysts represent a future direction for achieving sustainable hydrogen energy production. Low-cost amorphous molybdenum sulfides (MoSx), with their highly active HER activity, have emerged as outstanding catalysts for electrochemical hydrogen production. Herein, we report the development of a synergetic amorphous MoSx hybrid catalysts on V2O3 with optimized HER activity of MoSx. Our synthetic and structural characterization shows that MoSx distributes on V2O3 uniformly. HER-inert V2O3 provides a highly electrochemically active surface area for HER and promotes electron transport. The obtained hybrid MoSx/V2O3/CC catalyst exhibits a low overpotential of 146 mV at 10 mA cm−2 toward HER under acidic conditions, which is comparable with the current advanced catalysts, and high stability with no significant changes over 10 h of electrolysis. The density functional theory calculations also demonstrate that the interface of V2O3 and MoSx helps to improve the conductivity.
AB - Earth-abundant and low-cost hydrogen evolution reaction (HER) electrocatalysts represent a future direction for achieving sustainable hydrogen energy production. Low-cost amorphous molybdenum sulfides (MoSx), with their highly active HER activity, have emerged as outstanding catalysts for electrochemical hydrogen production. Herein, we report the development of a synergetic amorphous MoSx hybrid catalysts on V2O3 with optimized HER activity of MoSx. Our synthetic and structural characterization shows that MoSx distributes on V2O3 uniformly. HER-inert V2O3 provides a highly electrochemically active surface area for HER and promotes electron transport. The obtained hybrid MoSx/V2O3/CC catalyst exhibits a low overpotential of 146 mV at 10 mA cm−2 toward HER under acidic conditions, which is comparable with the current advanced catalysts, and high stability with no significant changes over 10 h of electrolysis. The density functional theory calculations also demonstrate that the interface of V2O3 and MoSx helps to improve the conductivity.
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U2 - 10.1016/j.jallcom.2020.154262
DO - 10.1016/j.jallcom.2020.154262
M3 - Article
AN - SCOPUS:85079365124
VL - 827
JO - Journal of Alloys and Compounds
JF - Journal of Alloys and Compounds
SN - 0925-8388
M1 - 154262
ER -