研磨
材料科学
聚合物
剥脱关节
云母
胶粘剂
复合材料
纳米技术
石墨烯
图层(电子)
作者
Liusi Yang,Dashuai Wang,Minsu Liu,Heming Liu,Junyang Tan,Zhongyue Wang,Heyuan Zhou,Qiangmin Yu,Jingyun Wang,Junhao Lin,Xiaolong Zou,Ling Qiu,Hui‐Ming Cheng,Bilu Liu
标识
DOI:10.1016/j.mattod.2021.08.009
摘要
Two-dimensional (2D) materials have many promising applications, but their scalable production remains challenging. Herein, we develop a glue-assisted grinding exfoliation (GAGE) method in which the adhesive polymer acts as a glue to massively produce 2D materials with large lateral sizes, high quality, and high yield. Density functional theory simulation shows that the exfoliation mechanism involves the competition between the binding energy of selected polymers and the 2D materials which is larger than the exfoliation energy of the layered materials. Taking h-BN as an example, the GAGE produces 2D h-BN with an average lateral size of 2.18 μm and thickness of 3.91 nm. The method is also extended to produce various other 2D materials, including graphene, MoS2, WS2, Bi2O2Se, mica, vermiculite, and montmorillonite. Two representative applications of thus-produced 2D materials have been demonstrated, including 2D h-BN/polymer composites for insulating thermal conduction and 2D MoS2-based electrocatalysts for large-current-density hydrogen evolution, indicating the great potential of massively produced 2D materials.
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