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Nano Research

Article Title

Oligolayered Ti3C2Tx MXene towards high performance lithium/sodium storage

Authors

Xiaolan Song, Hunan Key Lab of Mineral Materials and Application, School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China
Hui Wang, Hunan Key Lab of Mineral Materials and Application, School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China
Shengming Jin, Hunan Key Lab of Mineral Materials and Application, School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China
Miao lv, Hunan Key Lab of Mineral Materials and Application, School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China
Ying Zhang, Hunan Key Lab of Mineral Materials and Application, School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China
Xiaodong Kong, Hunan Key Lab of Mineral Materials and Application, School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China
Hongmei Xu, Hunan Key Lab of Mineral Materials and Application, School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China
Ting Ma, Hunan Key Lab of Mineral Materials and Application, School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China
Xinyuan Luo, Hunan Key Lab of Mineral Materials and Application, School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China
Hengfeng Tan, Hunan Key Lab of Mineral Materials and Application, School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China
Dong Hu, Hunan Key Lab of Mineral Materials and Application, School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China
Chaoyong Deng, Guangdong Zhiyuan New Material Co., LTD, Qingyuan 513055, China
Xinghua Chang, Hunan Key Lab of Mineral Materials and Application, School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China
Jianlong Xu, Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou 215123, China

Keywords

oligolayered Ti3C2Tx MXene, delamination, lithium ion battery, sodium ion battery, pseudocapacitance contribution

Abstract

2D MXenes are highly attractive for achieving ultrafast and stable lithium/sodium storage due to their good electric conductivity and abundant redox active sites. While, effective strategies for scalable preparation of oligolayered MXenes are still under exploration. Herein, oligolayered Ti3C2Tx MXene is successfully obtained after conventional synthesis of multilayered Ti3C2 and subsequent delamination process via an organic solvent of tetramethyl-ammonium hydroxide (TMAOH). Comprehensive electrochemical study reveals that surface-controlled redox reaction dominated the charge storage behavior of oligolayered Ti3C2Tx with fast reaction kinetics. Impressively, the obtained oligolayered Ti3C2Tx exhibits excellent lithium/sodium storage performance, featured for a high specific capacity of 330 mAh·g−1 at 1.0 A·g−1 after 800 cycles for lithium storage and 280 mAh·g−1 at 0.5 A·g−1 after 500 cycles for sodium storage. Such impressive performance will advance the development of oligolayered Ti3C2Tx based materials for lithium/sodium storage and even broaden their application into energy storage.

Graphical Abstract

Publisher

Tsinghua University Press

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