典型文献
Liquid phase exfoliation of indium selenide:Achieving the optimum exfoliating parameters and unraveling the mechanism
文献摘要：
The two-dimensional(2D)van der Waals indium selenide(InSe)exhibits the ultra-low intralayer Young's modulus yet the high interlayer cleavage and slipping energy,which could thus be obtained by the liquid phase exfoliation(LPE)method.Here,we designed 48 experiments to systematically achieve its optimum LPE parameters including the exfoliating solvent of N-Methyl-2-pyrrolidinone(NMP),ultrasonic power of 180 W,ultrasonic time of 12 h and exfoliating concentration of 6.25 mg/mL.The resulting optimal 2D InSe nanosheets show a uniform lateral size distribution of about 200 nm without impurities.We further analyzed the underlying exfoliating mechanism through the scanning electron microscopy(SEM)investigations.The results show that NMP has the more suitable Hansen solubility parameters to disperse and stabilize the 2D nanosheets.Increasing the ultrasonic power and time can provide plenty of energy to destroy the van der waals'force that exist between the interlayers of InSe and induce intralayer fragmentation.This work would provide a significant guideline for selecting exfoliating pa-rameters to obtain the expected InSe nanosheets and thus extend its applications in optical sensors and nanocomposites.
文献关键词：
中图分类号：
作者姓名：
Huihui Li;Bowen Liu;Xingchen Yang;Yang Gao;Xinying Luo;Xin Guan;Zhen Zhang;Zhongliang Yu;Bin Wang
作者机构：
Key Laboratory of Molecular Optoelectronic Sciences,School of Science,Tianjin University,Tianjin 300072,China;CAS Key Laboratory of Nanosystem and Hierarchical Fabrication,National Center for Nanoscience and Technology(NCNST),Beijing,100190,China;University of Chinese Academy of Sciences,Beijing 100049,China;State Key Laboratory of Organic-Inorganic Composites,College of Chemical Engineering,College of Materials Science and Engineering,Beijing University of Chemical Technology,Beijing,100029,China;Department of Environmental Science and Engineering,University of Science and Technology Beijing,Beijing,100083,China;Beijing Key Laboratory of Resource-oriented Treatment of Industrial Pollutants,Beijing 100083,China
文献出处：
引用格式：
[1]Huihui Li;Bowen Liu;Xingchen Yang;Yang Gao;Xinying Luo;Xin Guan;Zhen Zhang;Zhongliang Yu;Bin Wang-.Liquid phase exfoliation of indium selenide:Achieving the optimum exfoliating parameters and unraveling the mechanism)[J].自然科学进展·国际材料（英文）,2022(06):700-704
A类：
pyrrolidinone,waals
B类：
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AB值：
0.576277
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