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Biaxially Strained MoS2 Nanoshells with Controllable Layers Boost Alkaline Hydrogen Evolution

文献类型：期刊论文

作者Zhang, Tao2,3; Liu, Yipu1; Yu, Jie3; Ye, Qitong1; Yang, Liang1; Li, Yue3; Fan, Hong Jin2
刊名ADVANCED MATERIALS
出版日期2022-05-31
ISSN号0935-9648
关键词alkaline hydrogen evolution biaxial strain controlled layer number in situ self-vulcanization sulfur vacancies
DOI10.1002/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.
WOS关键词EFFICIENT BIFUNCTIONAL ELECTROCATALYSTS ; HIGHLY EFFICIENT ; HETEROSTRUCTURES ; STABILITY
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
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.Hainan Univ, Sch Mat Sci & Engn, State Key Lab Marine Resource Utilizat South Chin, Haikou 570228, Hainan, Peoples R China
2.Nanyang Technol Univ, Sch Phys & Math Sci, Singapore 637371, Singapore
3.Chinese Acad Sci, Key Lab Mat Phys, Inst Solid State Phys, HFIPS, Hefei 230031, 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).

入库方式： OAI收割

来源：合肥物质科学研究院

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