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

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

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.

Original languageEnglish
Article number154262
JournalJournal of Alloys and Compounds
Volume827
DOIs
Publication statusPublished - Jun 25 2020

All Science Journal Classification (ASJC) codes

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

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