期刊
CHINESE CHEMICAL LETTERS
卷 30, 期 6, 页码 1253-1260出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.cclet.2019.02.009
关键词
N-doped graphene quantum dots; Graphene; Molybdenum disulfide; Catalyst; Hydrogen evolution reaction
资金
- National Natural Science Foundation of China [21165016, 21175108, 21265018]
- Science and Technology Support Projects of Gansu Province [1011GKCA025, 090GKCA036, 1208RJZM289]
A novel three-dimensional (3D) layered MoS2@graphene functionalized with nitrogen-doped graphene quantum dots (MoS2@N-GQDs-GR) composites as an enhanced electrochemical hydrogen evolution catalyst. The few layered MoS2 nanoflowers supported on N-GQDs-GR surface were elaborately fabricated by one-pot hydrothermal method, which MoS2 and N-GQDs-GR exist in a bonding manner of Mo-N. In addition, due to the layered MoS2 sheet edge exposes more hydrogen evolution active sites and N-GQDs-GR have high conductivity, the composites exhibit prominent electrocatalytic activity with a low overpotential 99 mV, a small Tafel slope 49.3 mV/dec. Therefore, that the current work will develop HER catalysts may replace Pt. (C) 2019 Chinese Chemical Society and Institute of Materia Medica, Chinese Academy of Medical Sciences. Published by Elsevier B.V. All rights reserved.
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