Synthesis of Mo2C/MoC/C nanocomposite for hydrogen evolution reaction

被引：0
作者：
Sanjay Upadhyay
O. P. Pandey
机构：
[1] School of Physics and Materials Science,
[2] Thapar Institute of Engineering & Technology,undefined
来源：
Journal of Solid State Electrochemistry | 2022年 / 26卷
关键词：
Molybdenum carbide; Composite; Carbon; Electrocatalyst; Hydrogen evolution reaction; Specific capacitance;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Our energy sources such as fossil fuels and coal are limited and cause air pollution. Hydrogen has been promoted as an alternative source of energy, which is renewable, cost-effective, and nature-friendly. Hydrogen evolution reaction (HER) can be used for the mass production of hydrogen at a very low cost. An active and efficient electrocatalyst is required to perform this reaction. To date, platinum (Pt) shows the highest efficiency; however, its high cost and low abundance hinder its large-scale uses. Molybdenum carbide has a similar electronic structure as that of platinum (Pt); hence, it shows high electrocatalytic activity towards HER. In this study, Mo2C/MoC/C composite has been synthesized using magnesium as a reducing agent. Carbon provides a highly conducting environment to Mo2C and MoC nanoparticles, and hence, the electrochemical performance is enhanced. The prepared sample shows a small Tafel slope of 125.5 mV/dec and long-term stability up to 5000 cyclic voltammetry cycles.
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页码：559 / 564
页数：5
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