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Mass Production of High‐Quality Transition Metal Dichalcogenides Nanosheets via a Molten Salt Method
Author(s) -
Jin Hongrun,
Hu Zhimi,
Li Tianqi,
Huang Liang,
Wan Jun,
Xue Guobin,
Zhou Jun
Publication year - 2019
Publication title -
advanced functional materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 6.069
H-Index - 322
eISSN - 1616-3028
pISSN - 1616-301X
DOI - 10.1002/adfm.201900649
Subject(s) - materials science , molten salt , homogeneity (statistics) , nanotechnology , transition metal , chemical vapor deposition , electrochemistry , yield (engineering) , chemical engineering , catalysis , metallurgy , electrode , organic chemistry , statistics , chemistry , mathematics , engineering
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 (MoS 2 , WS 2 , MoSe 2 , and WSe 2 ) 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 MoSe 2 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.