Single Tungsten Atoms Supported on MOF-Derived N-Doped Carbon for Robust Electrochemical Hydrogen Evolution

doi:10.1002/adma.201800396

CORC > 上海应用物理研究所 > 中国科学院上海应用物理研究所 > 中科院上海应用物理研究所2011-2017年

	Single Tungsten Atoms Supported on MOF-Derived N-Doped Carbon for Robust Electrochemical Hydrogen Evolution
	Chen, WX ; Pei, JJ ; He, CT ; Wan, JW ; Ren, HL ; Wang, Y ; Dong, JC ; Wu, KL ; Cheong, WC ; Mao, JJ
刊名	ADVANCED MATERIALS
	2018
卷号	30 期号:30 页码:-
关键词	METAL-ORGANIC FRAMEWORKS OXYGEN REDUCTION CARBIDE NANOPARTICLES EFFICIENT CATALYSTS ELECTROCATALYST CONVERSION GRAPHENE SITES ULTRASMALL
ISSN号	0935-9648
DOI	10.1002/adma.201800396
文献子类	期刊论文
英文摘要	Tungsten-based catalysts are promising candidates to generate hydrogen effectively. In this work, a single-W-atom catalyst supported on metal-organic framework (MOF)-derived N-doped carbon (W-SAC) for efficient electrochemical hydrogen evolution reaction (HER), with high activity and excellent stability is reported. High-angle annular dark-field scanning transmission electron microscopy (HAADF-STEM) and X-ray absorption fine structure (XAFS) spectroscopy analysis indicate the atomic dispersion of the W species, and reveal that the W1N1C3 moiety may be the favored local structure for the W species. The W-SAC exhibits a low overpotential of 85 mV at a current density of 10 mA cm(-2) and a small Tafel slope of 53 mV dec(-1), in 0.1 m KOH solution. The HER activity of the W-SAC is almost equal to that of commercial Pt/C. Density functional theory (DFT) calculation suggests that the unique structure of the W1N1C3 moiety plays an important role in enhancing the HER performance. This work gives new insights into the investigation of efficient and practical W-based HER catalysts.
语种	英语
内容类型	期刊论文
源URL	[http://ir.sinap.ac.cn/handle/331007/31107]
专题	上海应用物理研究所_中科院上海应用物理研究所2011-2017年
作者单位	1.Beijing Univ Chem Technol, State Key Lab Organ Inorgan Composites, Beijing 100029, Peoples R China 2.Tsinghua Univ, Dept Chem, Beijing 100084, Peoples R China 3.Beijing Inst Technol, Sch Mat Sci & Engn, Beijing Key Lab Construct Tailorable Adv Funct Ma, Beijing 100081, Peoples R China 4.Beijing Univ Chem Technol, Beijing Adv Innovat Ctr Soft Matter Sci & Engn, Beijing 100029, Peoples R China 5.Sun Yat Sen Univ, Sch Chem, MOE Key Lab Bioinorgan & Synthet Chem, Guangzhou 510275, Guangdong, Peoples R China 6.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai Synchrotron Radiat Facil, Shanghai 201204, Peoples R China 7.Chinese Acad Sci, Inst High Energy Phys, Beijing Synchrotron Radiat Facil, Beijing 100049, Peoples R China 8.Univ Sci & Technol China, Natl Synchrotron Radiat Lab, Hefei 230029, Anhui, Peoples R China
推荐引用方式 GB/T 7714	Chen, WX,Pei, JJ,He, CT,et al. Single Tungsten Atoms Supported on MOF-Derived N-Doped Carbon for Robust Electrochemical Hydrogen Evolution[J]. ADVANCED MATERIALS,2018,30(30):-.
APA	Chen, WX.,Pei, JJ.,He, CT.,Wan, JW.,Ren, HL.,...&Li, YD.(2018).Single Tungsten Atoms Supported on MOF-Derived N-Doped Carbon for Robust Electrochemical Hydrogen Evolution.ADVANCED MATERIALS,30(30),-.
MLA	Chen, WX,et al."Single Tungsten Atoms Supported on MOF-Derived N-Doped Carbon for Robust Electrochemical Hydrogen Evolution".ADVANCED MATERIALS 30.30(2018):-.