Single-atom cobalt array bound to distorted 1T MoS2 with ensemble effect for hydrogen evolution catalysis

doi:10.1038/s41467-019-12997-7

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-atom cobalt array bound to distorted 1T MoS2 with ensemble effect for hydrogen evolution catalysis
	Qi, K ; Cui, XQ ; Gu, L ; Yu, SS ; Fan, XF ; Luo, MC ; Xu, S ; Li, NB ; Zheng, LR ; Zhang, QH
刊名	NATURE COMMUNICATIONS
	2019
卷号	10 页码:-
关键词	ACTIVE EDGE SITES THIN-FILMS NANOSHEETS TRANSITION ELECTROCATALYSTS IDENTIFICATION NANOPARTICLES PERFORMANCE SURFACE DESIGN
ISSN号	2041-1723
DOI	10.1038/s41467-019-12997-7
文献子类	期刊论文
英文摘要	The grand challenge in the development of atomically dispersed metallic catalysts is their low metal-atom loading density, uncontrollable localization and ambiguous interactions with supports, posing difficulty in maximizing their catalytic performance. Here, we achieve an interface catalyst consisting of atomic cobalt array covalently bound to distorted 1T MoS2 nanosheets (SA Co-D 1T MoS2). The phase of MoS2 transforming from 2H to D-1T, induced by strain from lattice mismatch and formation of Co-S covalent bond between Co and MoS2 during the assembly, is found to be essential to form the highly active single-atom array catalyst. SA Co-D 1T MoS2 achieves Pt-like activity toward HER and high long-term stability. Active-site blocking experiment together with density functional theory (DFT) calculations reveal that the superior catalytic behaviour is associated with an ensemble effect via the synergy of Co adatom and S of the D-1T MoS2 support by tuning hydrogen binding mode at the interface.
语种	英语
内容类型	期刊论文
源URL	[http://ir.sinap.ac.cn/handle/331007/32205]
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.Jilin Univ, Dept Mat Sci, State Key Lab Automot Simulat & Control, Key Lab Automobile Mat,MOE, Changchun 130012, Jilin, Peoples R China; 2.Chinese Acad Sci, Key Lab Renewable Energy, Beijing Key Lab New Energy Mat & Devices,Inst Phy, Lab Adv Mat & Electron Microscopy,Beijing Natl La, Beijing 100190, Peoples R China; 3.Peking Univ, Dept Mat Sci & Engn, Beijing 100871, Peoples R China; 4.Peking Univ, BIC ESAT, Coll Engn, Beijing 100871, Peoples R China; 5.Chinese Acad Sci, Inst High Energy Phys, Beijing Synchrotron Radiat Facil, Beijing 100049, Peoples R China; 6.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai Synchrotron Radiat Facil, Shanghai 200120, Peoples R China; 7.Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA
推荐引用方式 GB/T 7714	Qi, K,Cui, XQ,Gu, L,et al. Single-atom cobalt array bound to distorted 1T MoS2 with ensemble effect for hydrogen evolution catalysis[J]. NATURE COMMUNICATIONS,2019,10:-.
APA	Qi, K.,Cui, XQ.,Gu, L.,Yu, SS.,Fan, XF.,...&Liu, P.(2019).Single-atom cobalt array bound to distorted 1T MoS2 with ensemble effect for hydrogen evolution catalysis.NATURE COMMUNICATIONS,10,-.
MLA	Qi, K,et al."Single-atom cobalt array bound to distorted 1T MoS2 with ensemble effect for hydrogen evolution catalysis".NATURE COMMUNICATIONS 10(2019):-.