文献类型：期刊文献

英文题名：Controlled synthesis of alkalized Ti3C2 MXene-supported -FeOOH nanoparticles as anodes for lithium-ion batteries

作者：Xue, Chenting[1];He, Ying[1,2];Liu, Yijun[1];Saha, Petr[2];Cheng, Qilin[1,2]

机构：[1]East China Univ Sci & Technol, Sch Mat Sci & Engn, Minist Educ, Key Lab Ultrafine Mat, Shanghai 200237, Peoples R China;[2]Tomas Bata Univ Zlin, Ctr Polymer Syst, Nam TG Masaryka 5555, Zlin 76001, Czech Republic

年份：2019

卷号：25

期号：7

起止页码：3069

外文期刊名：IONICS

收录：;EI(收录号：20190906549812);WOS:【SCI-EXPANDED(收录号:WOS:000471637600012)】；

基金：This work was supported by National Key R&D Program of China (2016YFE0131200), the National Natural Science Foundation of China (51702098), International Cooperation Project of Shanghai Municipal Science and Technology Committee (18520744400), and Research Program supported by the Ministry of Education, Youth, and Sports of the Czech Republic (LTACH17015).

语种：英文

外文关键词：MXene; Ti3C2; FeOOH; Lithium ion battery; Electrochemical properties

摘要：Ti3C2 MXene, a new family of two-dimensional (2D) materials with metallic conductivity and excellent electrochemical stability, is one of the most promising materials for energy storage. However, its limited interlayer distance and low capacity still impede its further application in Li+ batteries. To address this problem, a facile wet chemical method is developed to construct -FeOOH/Ti3C2 composites assisted by the alkalization treatment of Ti3C2. The structural and electrochemical properties of -FeOOH/Ti3C2 are influenced by alkalization treatment and Fe3+ content. The alkalized Ti3C2 offers larger structural pathway for easy lithium ion transport and buffers the volume changes of FeOOH during lithiation/delithiation. As a result, the -FeOOH/Ti3C2 composite anodes exhibit good rate performance with a capacity of 332mAhg(-1) at 0.5Ag(-1) and an improved cycling capacity 432mAhg(-1) at 0.2Ag(-1) after 400cycles. This study is expected to stimulate the intensive research and development on the MXene-based materials for lithium-ion batteries.