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Atomic-scale engineering of chemical vapor deposition-grown 2D transition metal dichalcogenides for electrocatalysis

Abstract

Chemical vapor deposition (CVD) is recognized as a powerful method to synthesize atomically thin two-dimensional nanomaterials for the merits of high quality, thickness uniform with high efficiency, controllability and scalability. Benefitting from the intriguing electronic and chemical characteristics, 2D transition metal dichalcogenides (TMDs) increasingly obtain more and more attention in energy-related electrocatalysis, including the H2 evolution, CO2 reduction, O2 reduction/evolution and I3- reduction, etc. Atomic-scale tailoring the surface and interface of CVD grown TMDs is critical to not only improve the electronic structure as well as conductivity but also understand the intrinsic nature of active sites. Therefore, the comprehensive and deep cognition of CVD grown 2D TMDs for electrocatalysis is urgently needed. In this review, the very recent advances of surface and interface engineering strategies, such as geometric dimensional control, defect engineering, doping modification, phase transition, strain tuning and heterostructure construction are highlighted. Finally, the current challenge and perspective are also discussed. This review aims to provide the profound understanding and design of atomic-scale active sites in 2D TMDs for energy electrocatalysis.

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Article information


Submitted
11 Feb 2020
Accepted
18 Mar 2020
First published
19 Mar 2020

Energy Environ. Sci., 2020, Accepted Manuscript
Article type
Review Article

Atomic-scale engineering of chemical vapor deposition-grown 2D transition metal dichalcogenides for electrocatalysis

Q. Wang, Y. lei, Y. Wang, Y. liu, C. Song, J. Zeng, Y. Song, X. Duan, D. Wang and Y. Li, Energy Environ. Sci., 2020, Accepted Manuscript , DOI: 10.1039/D0EE00450B

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