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Engineering stepped edge surface structures of MoS2 sheet stacks to accelerate the hydrogen evolution reaction
Hu, Jue1; Huang, Bolong2; Zhang, Chengxu3,4; Wang, Zilong1; An, Yiming1; Zhou, Dan1; Lin, He1; Leung, Michael K. H.3; Yang, Shihe1
2017-02-01
发表期刊ENERGY & ENVIRONMENTAL SCIENCE
摘要Two-dimensional molybdenum sulfide is an attractive noble-metal-free electrocatalyst for the hydrogen evolution reaction (HER). Significant efforts have been made to increase the number of exposed edge sites. However, little attention has been paid to devising edge surface structures of MoS2 sheet stacks to promote the HER kinetics. Herein we report the first demonstration of significantly enhanced HER kinetics by controllably fabricating a stepped MoS2 surface structure. Vertical arrays of MoS2 sheets terminated with such a stepped surface structure have proved to be an outstanding HER electrocatalyst with an overpotential of 104 mV at 10 mA cm(-2), an exchange current density of 0.2 mA cm(-2) and high stability. Experimental and theoretical results indicate that the enhanced electrocatalytic activity of the vertical MoS2 arrays is associated with the unique vertically terminated, highly exposed, stepped surface structure with a nearly thermoneutral H-adsorption energy. This work opens a new avenue to designing and developing layered materials for electrochemical energy applications.
文章类型Article
WOS标题词Science & Technology ; Physical Sciences ; Technology ; Life Sciences & Biomedicine
DOI10.1039/c6ee03629e
关键词[WOS]ENHANCED ELECTROCATALYTIC ACTIVITY ; METAL DICHALCOGENIDE NANOSHEETS ; ULTRATHIN NANOSHEETS ; OXYGEN REDUCTION ; MOLYBDENUM SULFIDES ; CATALYTIC-ACTIVITY ; EFFICIENT ; NANOPARTICLES ; TRANSITION ; GROWTH
收录类别SCI
语种英语
项目资助者NSFC/Hong Kong RGC Research Scheme(N_HKUST610/14) ; NSFC/Hong Kong RGC Research Scheme(N_HKUST610/14) ; NSFC/Hong Kong RGC Research Scheme(N_HKUST610/14) ; NSFC/Hong Kong RGC Research Scheme(N_HKUST610/14) ; NSFC/Hong Kong RGC Research Scheme(N_HKUST610/14) ; NSFC/Hong Kong RGC Research Scheme(N_HKUST610/14) ; NSFC/Hong Kong RGC Research Scheme(N_HKUST610/14) ; NSFC/Hong Kong RGC Research Scheme(N_HKUST610/14) ; RGC of Hong Kong(16300915) ; RGC of Hong Kong(16300915) ; RGC of Hong Kong(16300915) ; RGC of Hong Kong(16300915) ; RGC of Hong Kong(16300915) ; RGC of Hong Kong(16300915) ; RGC of Hong Kong(16300915) ; RGC of Hong Kong(16300915) ; National Nature Science Foundation of Anhui Province(1508085QA10) ; National Nature Science Foundation of Anhui Province(1508085QA10) ; National Nature Science Foundation of Anhui Province(1508085QA10) ; National Nature Science Foundation of Anhui Province(1508085QA10) ; National Nature Science Foundation of Anhui Province(1508085QA10) ; National Nature Science Foundation of Anhui Province(1508085QA10) ; National Nature Science Foundation of Anhui Province(1508085QA10) ; National Nature Science Foundation of Anhui Province(1508085QA10) ; Youth Innovation Promotion Association of Chinese Academy of Sciences(2015265) ; Youth Innovation Promotion Association of Chinese Academy of Sciences(2015265) ; Youth Innovation Promotion Association of Chinese Academy of Sciences(2015265) ; Youth Innovation Promotion Association of Chinese Academy of Sciences(2015265) ; Youth Innovation Promotion Association of Chinese Academy of Sciences(2015265) ; Youth Innovation Promotion Association of Chinese Academy of Sciences(2015265) ; Youth Innovation Promotion Association of Chinese Academy of Sciences(2015265) ; Youth Innovation Promotion Association of Chinese Academy of Sciences(2015265)
WOS研究方向Chemistry ; Energy & Fuels ; Engineering ; Environmental Sciences & Ecology
WOS类目Chemistry, Multidisciplinary ; Energy & Fuels ; Engineering, Chemical ; Environmental Sciences
WOS记录号WOS:000395679100018
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被引频次:276[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.hfcas.ac.cn:8080/handle/334002/31699
专题中科院等离子体物理研究所
作者单位1.Hong Kong Univ Sci & Technol, Dept Chem, Kowloon, Hong Kong, Peoples R China
2.Hong Kong Polytech Univ, Dept Appl Biol & Chem Technol, Kowloon, Hong Kong, Peoples R China
3.City Univ Hong Kong, Sch Energy & Environm, Abil R&D Energy Res Ctr, Hong Kong, Hong Kong, Peoples R China
4.Chinese Acad Sci, Inst Plasma Phys, Hefei, Anhui, Peoples R China
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GB/T 7714
Hu, Jue,Huang, Bolong,Zhang, Chengxu,et al. Engineering stepped edge surface structures of MoS2 sheet stacks to accelerate the hydrogen evolution reaction[J]. ENERGY & ENVIRONMENTAL SCIENCE,2017,10(2):593-603.
APA Hu, Jue.,Huang, Bolong.,Zhang, Chengxu.,Wang, Zilong.,An, Yiming.,...&Yang, Shihe.(2017).Engineering stepped edge surface structures of MoS2 sheet stacks to accelerate the hydrogen evolution reaction.ENERGY & ENVIRONMENTAL SCIENCE,10(2),593-603.
MLA Hu, Jue,et al."Engineering stepped edge surface structures of MoS2 sheet stacks to accelerate the hydrogen evolution reaction".ENERGY & ENVIRONMENTAL SCIENCE 10.2(2017):593-603.
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