Self-supported MoSx/V2O3 heterostructures as efficient hybrid catalysts for hydrogen evolution reaction

Mingwei Hu, Jin Huang, Qizhong Li, Rong Tu, Song Zhang, Meijun Yang, Haiwen Li, Takashi Goto, Lianmeng Zhang

研究成果: ジャーナルへの寄稿学術誌査読

9 被引用数 (Scopus)

抄録

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.

本文言語英語
論文番号154262
ジャーナルJournal of Alloys and Compounds
827
DOI
出版ステータス出版済み - 6月 25 2020

!!!All Science Journal Classification (ASJC) codes

  • 材料力学
  • 機械工学
  • 金属および合金
  • 材料化学

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