文献类型：期刊文献

英文题名：Highly Efficiently Delaminated Single-Layered MXene Nanosheets with Large Lateral Size

作者：Li, Gengnan[1];Tan, Li[1];Zhang, Yumeng[1];Wu, Binghan[1];Li, Liang[1]

机构：[1]East China Univ Sci & Technol, Key Lab Ultrafine Mat, Minist Educ, Sch Mat Sci & Engn, Shanghai 200237, Peoples R China

年份：2017

卷号：33

期号：36

起止页码：9000

外文期刊名：LANGMUIR

收录：;EI(收录号：20173804166105);WOS:【SCI-EXPANDED(收录号:WOS:000410867800019)】；

基金：This study was supported by the National Basic Research Program of China, 2013CB933201.

语种：英文

外文关键词：Atomic force microscopy - Functional materials - Potassium hydroxide - Aluminum compounds - Etching - Titanium compounds

摘要：Single layered Ti3C2(OH)(2) nanosheets have been successfully fabricated by etching its Ti3AlC2 precursor with KOH in the presence of a small amount of water. The OH group replaced the Al layer within the Ti3AlC2 structure during etching, and Ti3C2(OH)(2) nanosheets could be easily and efficiently achieved through a simple washing process. The delaminated single-layered nanosheets are clearly revealed by atomic force microscopy to be several micrometers in lateral size. Interestingly, the exfoliated Ti3C2(OH)(2) nanosheets could be restacked to form a new layer structured material after drying. When redispersing this restacked Ti3C2(OH)(2) materials in water again, it could be re-delaminated easily only after shaking for several hours. The easy delamination and restacking properties, coupled with intrinsic metallic conductivity and hydrophilicity, make it an ideal two-dimensional building block for fabricating a wide variety of functional materials.