Biaxially Strained MoS2 Nanoshells with Controllable Layers Boost Alkaline Hydrogen Evolution

doi:10.1002/adma.202202195

	Biaxially Strained MoS2 Nanoshells with Controllable Layers Boost Alkaline Hydrogen Evolution
	Zhang, Tao 1,2; Liu, Yipu 3; Yu, Jie 1; Ye, Qitong 3; Yang, Liang 3; Li, Yue 1; Fan, Hong Jin 2
刊名	ADVANCED MATERIALS
	2022-05-31
关键词	alkaline hydrogen evolution biaxial strain controlled layer number in situ self-vulcanization sulfur vacancies
ISSN号	0935-9648
DOI	10.1002/adma.202202195
通讯作者	Li, Yue(yueli@issp.ac.cn) ; Fan, Hong Jin(fanhj@ntu.edu.sg)
英文摘要	Strain in layered transition-metal dichalcogenides (TMDs) is a type of effective approach to enhance the catalytic performance by activating their inert basal plane. However, compared with traditional uniaxial strain, the influence of biaxial strain and the TMD layer number on the local electronic configuration remains unexplored. Herein, via a new in situ self-vulcanization strategy, biaxially strained MoS2 nanoshells in the form of a single-crystalline Ni3S2@MoS2 core-shell heterostructure are realized, where the MoS2 layer is precisely controlled between the 1 and 5 layers. In particular, an electrode with the bilayer MoS2 nanoshells shows a remarkable hydrogen evolution reaction activity with a small overpotential of 78.1 mV at 10 mA cm(-2), and negligible activity degradation after durability testing. Density functional theory calculations reveal the contribution of the optimized biaxial strain together with the induced sulfur vacancies and identify the origin of superior catalytic sites in these biaxially strained MoS2 nanoshells. This work highlights the importance of the atomic-scale layer number and multiaxial strain in unlocking the potential of 2D TMD electrocatalysts.
资助项目	Singapore Ministry of Education by AcRF Tier 1[RG125/21] ; National Science Fund for Distinguished Young Scholars[51825103] ; Natural Science Foundation of China[52001306] ; Natural Science Foundation of China[22005116] ; International Postdoctoral Exchange Fellowship Program[20190067]
WOS关键词	EFFICIENT BIFUNCTIONAL ELECTROCATALYSTS ; HIGHLY EFFICIENT ; HETEROSTRUCTURES ; STABILITY
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
语种	英语
出版者	WILEY-V C H VERLAG GMBH
WOS记录号	WOS:000803006300001
资助机构	Singapore Ministry of Education by AcRF Tier 1 ; National Science Fund for Distinguished Young Scholars ; Natural Science Foundation of China ; International Postdoctoral Exchange Fellowship Program
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/131013]
专题	中国科学院合肥物质科学研究院
通讯作者	Li, Yue; Fan, Hong Jin
作者单位	1.Chinese Acad Sci, Key Lab Mat Phys, Inst Solid State Phys, HFIPS, Hefei 230031, Peoples R China 2.Nanyang Technol Univ, Sch Phys & Math Sci, Singapore 637371, Singapore 3.Hainan Univ, Sch Mat Sci & Engn, State Key Lab Marine Resource Utilizat South Chin, Haikou 570228, Hainan, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Tao,Liu, Yipu,Yu, Jie,et al. Biaxially Strained MoS2 Nanoshells with Controllable Layers Boost Alkaline Hydrogen Evolution[J]. ADVANCED MATERIALS,2022.
APA	Zhang, Tao.,Liu, Yipu.,Yu, Jie.,Ye, Qitong.,Yang, Liang.,...&Fan, Hong Jin.(2022).Biaxially Strained MoS2 Nanoshells with Controllable Layers Boost Alkaline Hydrogen Evolution.ADVANCED MATERIALS.
MLA	Zhang, Tao,et al."Biaxially Strained MoS2 Nanoshells with Controllable Layers Boost Alkaline Hydrogen Evolution".ADVANCED MATERIALS (2022).