Mass Production of High‐Quality Transition Metal Dichalcogenides Nanosheets via a Molten Salt Method

2D transition metal dichalcogenides (TMDs) are well suited for energy storage and field–effect transistors because of their thickness‐dependent chemical and physical properties. However, as current synthetic methods for 2D TMDs cannot integrate both advantages of liquid‐phase syntheses (i.e., massiv...

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Bibliographic Details
Published in:Advanced functional materials 2019-08, Vol.29 (35), p.n/a
Main Authors: Jin, Hongrun, Hu, Zhimi, Li, Tianqi, Huang, Liang, Wan, Jun, Xue, Guobin, Zhou, Jun
Format: Article
Language:English
Subjects:
Chalcogenides
Chemical vapor deposition
Electrochemical analysis
Energy storage
Mass production
Materials science
molten salt method
Molten salts
Molybdenum compounds
Molybdenum disulfide
Nanosheets
Organic chemistry
Physical properties
Reaction time
Semiconductor devices
Thickness
Transistors
Transition metal compounds
transition metal dichalcogenides
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Summary:2D transition metal dichalcogenides (TMDs) are well suited for energy storage and field–effect transistors because of their thickness‐dependent chemical and physical properties. However, as current synthetic methods for 2D TMDs cannot integrate both advantages of liquid‐phase syntheses (i.e., massive production and homogeneity) and chemical vapor deposition (i.e., high quality and large lateral size), it still remains a great challenge for mass production of high‐quality 2D TMDs. Here, a molten salt method to massively synthesize various high‐crystalline TMDs nanosheets (MoS2, WS2, MoSe2, and WSe2) with the thicknesses less than 5 nm is reported, with the production yield over 68% with the reaction time of only several minutes. Additionally, the thickness and size of the as‐synthesized nanosheets can be readily controlled through adjusting reaction time and temperature. The as‐synthesized MoSe2 nanosheets exhibit good electrochemical performance as pseudocapacitive materials. It is further anticipates that this work will provide a promising strategy for rapid mass production of high‐quality nonoxides nanosheets for energy‐related applications and beyond. High‐crystalline transition metal dichalcogenides nanosheets (including MoS2, WS2, MoSe2, and WSe2) can be mass produced with a reaction time of only several minutes through a molten salt method.
ISSN:1616-301X
1616-3028
DOI:10.1002/adfm.201900649