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 \((\hbox {Cu}_{1.8}\hbox {Mo}_{6}\hbox {S}_{8})\) was synthesized in composite with \(\hbox {Mo}_{2}\hbox {C}\) 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 composite exhibits higher hydrogen evolution reaction (HER) activity with \(71.4\,\hbox {mA}\,\mathrm{cm}^{-2}\) current density at an overpotential of 400 mV. It requires 250 mV overpotential to produce \(10\,\hbox {mA}\,\mathrm{cm}^{-2}\) current density for HER.
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Acknowledgements
AKG thanks DST and DeitY, Government of India, for financial support. KO thanks UGC, Government of India, for fellowship. MS and PD thank INST for the fellowship.
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Ojha, K., Banerjee, S., Sharma, M. et al. Synthesis of Chevrel phase \((\hbox {Cu}_{1.8}\hbox {Mo}_{6}\hbox {S}_{8})\) in composite with molybdenum carbide for hydrogen evolution reactions. Bull Mater Sci 41, 119 (2018). https://doi.org/10.1007/s12034-018-1633-z
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DOI: https://doi.org/10.1007/s12034-018-1633-z