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      https://www.ias.ac.in/article/fulltext/boms/041/05/0119

    • Keywords

       

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

    • Abstract

       

      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.

    • Author Affiliations

       

      KASINATH OJHA1 SHIVALI BANERJEE1 MANU SHARMA2 PREETI DAGAR2 ASHOK K GANGULI1 2

      1. Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
      2. Institute of Nano Science and Technology, Habitat Center, Phase 10, Sector 64, Mohali 160062, India
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  • Bulletin of Materials Science | News

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