Layered MoS_2@graphene functionalized with nitrogen-doped graphene quantum dots as an enhanced electrochemical hydrogen evolution catalyst

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英文篇名：Layered MoS_2@graphene functionalized with nitrogen-doped graphene quantum dots as an enhanced electrochemical hydrogen evolution catalyst 作者：Lina ; Wang ; Sen ; Sun ; Yan ; Wang ; Xiaoling ; Chen ; Kangning ; Zhang ; Dongxia ; Zhang ; Zhonghua ; Xue ; Xibin ; Zhou 英文作者：Tong Guo;Lina Wang;Sen Sun;Yan Wang;Xiaoling Chen;Kangning Zhang;Dongxia Zhang;Zhonghua Xue;Xibin Zhou;Key Laboratory of Bioelectrochemistry & Environmental Analysis of Gansu Province, College of Geography and Environment Science, Northwest Normal University;College of Chemistry and Chemical Engineering, Northwest Normal University; 英文关键词：N-doped graphene quantum dots;;Graphene;;Molybdenum disulfide;;Catalyst;;Hydrogen evolution reaction 中文刊名：FXKB 英文刊名：中国化学快报(英文版) 机构：Key Laboratory of Bioelectrochemistry & Environmental Analysis of Gansu Province, College of Geography and Environment Science, Northwest Normal University;College of Chemistry and Chemical Engineering, Northwest Normal University; 出版日期：2019-06-15 出版单位：Chinese Chemical Letters 年：2019 期：v.30 基金：financially supported by the National Natural Science Foundation of China(Nos. 21165016, 21175108, 21265018);; the Science and Technology Support Projects of Gansu Province (Nos. 1011GKCA025, 090GKCA036,1208RJZM289) 语种：英文; 页：FXKB201906027 页数：8 CN：06 ISSN：11-2710/O6 分类号：137-144

摘要

A novel three-dimensional(3D)layered MoS_2@graphene functionalized with nitrogen-doped graphene quantum dots(MoS_2@N-GQDs-GR)composites as an enhanced electrochemical hydrogen evolution catalyst.The few layered MoS_2 nano flowers supported on N-GQDs-GR surface were elaborately fabricated by one-pot hydrothermal method,which MoS_2 and N-GQDs-GR exist in a bonding manner of Mo-N.In addition,due to the layered MoS_2 sheet edge exposes more hydrogen evolution active sites and N-GQD s-GR have high conductivity,the composites exhibit prominent electrocatalytic activity with a low ove rpotential 99 mV,a small Tafel slope 49.3 mV/dec.Therefore,that the curre nt work will develop HER catalysts may replace Pt.
        A novel three-dimensional(3D)layered MoS_2@graphene functionalized with nitrogen-doped graphene quantum dots(MoS_2@N-GQDs-GR)composites as an enhanced electrochemical hydrogen evolution catalyst.The few layered MoS_2 nano flowers supported on N-GQDs-GR surface were elaborately fabricated by one-pot hydrothermal method,which MoS_2 and N-GQDs-GR exist in a bonding manner of Mo-N.In addition,due to the layered MoS_2 sheet edge exposes more hydrogen evolution active sites and N-GQD s-GR have high conductivity,the composites exhibit prominent electrocatalytic activity with a low ove rpotential 99 mV,a small Tafel slope 49.3 mV/dec.Therefore,that the curre nt work will develop HER catalysts may replace Pt.

引文

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