材料科学
剥脱关节
纳米技术
化学工程
相(物质)
过渡金属
原材料
催化作用
石墨烯
有机化学
工程类
化学
作者
Liangzhu Zhang,Cheng Chen,Jiadong Zhou,Guoliang Yang,Jiemin Wang,Dan Liu,Zhiqiang Chen,Weiwei Lei
标识
DOI:10.1002/adfm.202004139
摘要
Abstract 2D transition metal dichalcogenides (TMDs) nanosheets with unique electronic structure and vibrationally physical and chemical properties have triggered tremendous interest both in fundamental and applied research. In order to fully exploit the potential of these remarkable materials, general and efficient exfoliation methods for producing versatile kinds of TMDs are highly desired. Here, a universal solid phase exfoliation (SPE) strategy is developed with high productivity, feasibility, and repeatability for scalably preparing 18 kinds of MX 2 (M = Mo, W, V, Nb, Ta, Ti, X = Te, Se, S) nanosheets from corresponding cracked‐induced bulk crystals (C‐MX 2 ). By directly using C‐MX 2 as the starting raw materials prepared by molten‐salt cracking synthesis, it is more efficient and time‐saving to produce thin nanosheets due to the loose interaction between layers compared with densely layered MX 2 (D‐MX 2 ). Notably, the exfoliated TMD nanosheets can be easily processed as powders, water dispersions, and thin films, offering exciting opportunities for a wide range of applications from electronics to energy storage.
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