Achieving high yield of Ti3C2Tx MXene few-layer flakes with enhanced pseudocapacior performance by decreasing precursor size  

作　　者：Jianguang Xu Jiale Zhu Chen Gong Zexin Guan Dan Yang Zhihan Shen Wei Yao Haijiang Wu 

机构地区：[1]School of Materials Science and Engineering,Yancheng Institute of Technology,Yancheng 224051,China [2]Key Laboratory of Hunan Province for Efficient Power System and Intelligent Manufacturing,Shaoyang University,Shaoyang 422000,China

出　　处：《Chinese Chemical Letters》2020年第4期1039-1043,共5页中国化学快报（英文版）

基　　金：the National Natural Science Foundation of China(No.21671167);the Joint Open Fund of Jiangsu Collaborative Innovation Center for Ecological Building Material and Environmental Protection Equipments and Key Laboratory for Advanced Technology in Environmental Protection of Jiangsu Province(No.JH201847);the National Natural Science Foundation of China(No.51602277)。

摘　　要：Ti3C2Tx,a most studied member of MXene family,shows promise as a candidate electrode for pseudocapacitor due to its electronic conductivity and hydrophilic surface.However,the unsatisfactory yield of Ti3C2Tx few-layer flakes significantly restricted it in real applications.Here,we proposed a simple solution to boost the yield of Ti3C2Tx few-layer flakes by decreasing precursor size.When using the small500 mesh Ti3AlC2 powders as raw material,high yield of 65%was successfully achieved.Moreover,the asreceived small flakes also exhibit an enhanced pseudocapacior performance owing to their excellent electrical conductivity,expanded inte rlayer space and more O content on the surface.This work not only sheds light on the cost effective mass production of Ti3C2Tx few-layer flakes,but also provides an efficient solution for the design of MXene electrodes with high pseudocapacior performance.

关 键 词：MXene Ti3C2Tx High yield PSEUDOCAPACITOR Precursor size Flake size 

分 类 号：TM53[电气工程—电器]