期刊
ACS APPLIED NANO MATERIALS
卷 5, 期 3, 页码 3790-3798出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsanm.1c04253
关键词
molybdenum carbide; reduced graphene oxide; hydrogen evolution reaction; electrocatalyst; microwave-assisted reaction
资金
- National Science Foundation [NSF 1709307]
- Global Frontier R&D Program on Center for Multiscale Energy System, Korea [2012M3A6A7054855]
- University of Pittsburgh and Hitachi High Technologies
In this study, molybdenum carbide nanoparticles and molybdenum carbide-reduced graphene oxide nanocomposites were synthesized using a facile, microwave-assisted solvothermal method at elevated temperatures. The optimized nanocomposite catalysts showed excellent performance for the hydrogen evolution reaction in acidic media.
The development of cost-effective, highly efficient, and stable electrocatalysts to replace expensive platinum-like metal catalysts remains a great challenge for the hydrogen evolution reaction (HER). In this study, we report a facile, microwave-assisted solvothermal (MWSV) synthesis of molybdenum carbide (Mo2C) nanoparticles and molybdenum carbide-reduced graphene oxide (Mo2C-RGO) nanocomposites at elevated temperatures. The optimized Mo2C-RGO nano-composite catalysts show excellent HER performance in acidic media. When GO is added, the onset potential and Tafel slope of the nanocomposite catalyst are 120 mV and 85 mV/dec, respectively. The catalysts also exhibit good stability in an acidic environment. This improvement of the carbide catalyst is attributed to highly accessible active reaction sites, efficient mass/charge transportation, and enhanced conductivity of the hybrid structure.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据