Synthesis of Chevrel phase (Cu$_{1.8}$Mo$_6$S$_8$) in composite with molybdenum carbide for hydrogen evolution reactions

Bulletin of Materials Science

KASINATH OJHA^1¹  SHIVALI BANERJEE^1² 

[1] Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India^1;Institute of Nano Science and Technology, Habitat Center, Phase 10, Sector 64, Mohali 160062, India^2

关键词: Cu$_{1.8}$Mo$_6$S$_8$;    Chevrel phase;    molybdenum carbide;    hydrogen evolution reactions.;   

DOI  :  

学科分类：材料工程

来源: Indian Academy of Sciences

【 摘 要 】

Sustainable hydrogen generation from water electrolysis using renewable energy sources is the most promising pathway for future energy and hydrogen economy. Here, the Chevrel phase (Cu$_{1.8}$Mo$_6$S$_8$) was synthesized in composite with Mo$_2$C and good hydrogen evolution activity in acidic media has been demonstrated. Bundles of nanowires were formed in the templated synthesis route. The composites were characterized by X-ray diffraction, transmission electron microscopy, scanning electron microscopy and elemental analysis. Detailed electrochemical analysis reveals that MCS-Cu50 compositeexhibits higher hydrogen evolution reaction (HER) activity with 71.4 mA cm$^{−2}$ current density at an overpotential of 400 mV. It requires 250 mV overpotential to produce 10 mA cm$^{−2}$ current density for HER.

【 授权许可】

CC BY