期刊
RARE METALS
卷 37, 期 12, 页码 1014-1020出版社
NONFERROUS METALS SOC CHINA
DOI: 10.1007/s12598-018-1121-z
关键词
ReS2; RGO; Hydrothermal method; Electrocatalyst; Hydrogen evolution reaction
资金
- National Natural Science Foundation of China [51372033]
- National High Technology Research and Development Program of China [2015AA034202]
- Program of the Ministry of Education of China for Introducing Talents of Discipline to Universities [B13042]
Few-layered ReS2 two-dimensional (2D) semiconductor nanosheets directly nucleated and grown on reduced graphene oxide (RGO) were synthesized through a facile hydrothermal method. Compared with bare ReS2, the ReS2/RGO hybrid delivers much better electrocatalytic activity for hydrogen evolution reaction (HER) in acidic media. It exhibits a lower Tafel slope of 107.4mVdec(-1) and a larger current density of -5.2mAcm(-2) at -250mV (vs. RHE), compared with ReS2 (152.7mVdec(-1), -3.1mAcm(-2)). The ReS2/RGO hybrid has a unique architecture constructed by highly conductive and porous RGO internetworks, which guarantees easy electrolyte infiltration and efficient charge transfer and provides sufficient active edge sites, resulting in enhanced HER performance. The present synthesis approach can be extended to synthesize other 2D-semiconductor-based composites for energy storage and catalytic devices.
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