Waved 2D Transition-Metal Disulfides for Nanodevices and Catalysis: A First-Principle Study

doi:10.1021/acsanm.0c00119

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	Waved 2D Transition-Metal Disulfides for Nanodevices and Catalysis: A First-Principle Study
	Y. C. Kong; H. Q. Ai; W. Wang; X. H. Xie; K. H. Lo; S. P. Wang and H. Pan
	2020
Source Publication	Acs Applied Nano Materials
ISSN	2574-0970
Volume	3 Issue:3 Pages:2804-2812
Abstract	Two-dimensional (2D) transition-metal dichalcogenides (TMDs) monolayers have found various applications spanning from electronics in physics to catalysis in chemistry due to their unique physical and chemical properties. Here, the effect of structure engineering on the physical and chemical properties of transition-metal disulfide monolayers (MS2) is systematically investigated based on density functional theory (DFT) calculations. The calculation results show that waved MS2 (w-MS2) can be achieved under compression due to the zero in-plane stiffness, leading to high flexibility within a wide range of compression. The bandgap and conductivity of semi-conducting w-MS2 are reduced because the d orbitals of transition-metal elements become more localized as the curvature increases. A transition from a direct band to an indirect one is observed in w-MoS2 and w-WS2 after a critical strain. We further demonstrate the structure engineering can modulate the magnetism of w-VS2, leading to nonuniform distribution of magnetic moments along the curvature. Furthermore, we find that waved TMDs show reduced Gibbs free energy for hydrogen adsorption, resulting in enhanced catalytic performance in hydrogen reaction evolution (HER). It is expected that the waved 2D TMDs may find applications into various areas, such as nanodevices and catalysis.
DOI	10.1021/acsanm.0c00119
URL	查看原文
Indexed By	SCI
Language	英语
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Document Type	期刊论文
Identifier	http://ir.ciomp.ac.cn/handle/181722/65002
Collection	中国科学院长春光学精密机械与物理研究所
Recommended Citation GB/T 7714	Y. C. Kong,H. Q. Ai,W. Wang,et al. Waved 2D Transition-Metal Disulfides for Nanodevices and Catalysis: A First-Principle Study[J]. Acs Applied Nano Materials,2020,3(3):2804-2812.
APA	Y. C. Kong,H. Q. Ai,W. Wang,X. H. Xie,K. H. Lo,&S. P. Wang and H. Pan.(2020).Waved 2D Transition-Metal Disulfides for Nanodevices and Catalysis: A First-Principle Study.Acs Applied Nano Materials,3(3),2804-2812.
MLA	Y. C. Kong,et al."Waved 2D Transition-Metal Disulfides for Nanodevices and Catalysis: A First-Principle Study".Acs Applied Nano Materials 3.3(2020):2804-2812.

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中国科学院长春光学精密机械与物理研究所