An Organic Solvent-Assisted Intercalation and Collection (OAIC) for Ti3C2Tx MXene with Controllable Sizes and Improved Yield

Danyao Qu; Yingying Jian; Lihao Guo; Chen Su; Ning Tang; Xingmao Zhang; Wenwen Hu; Zheng Wang; Zhenhuan Zhao; Peng Zhong; Peipei Li; Tao Du; Hossam Haick; Weiwei Wu

doi:10.1007/s40820-021-00705-4

An Organic Solvent-Assisted Intercalation and Collection (OAIC) for Ti₃C₂T_x MXene with Controllable Sizes and Improved Yield

Nanomicro Lett. 2021 Sep 5;13(1):188. doi: 10.1007/s40820-021-00705-4.

Authors

Danyao Qu¹, Yingying Jian¹, Lihao Guo¹, Chen Su¹, Ning Tang², Xingmao Zhang¹, Wenwen Hu², Zheng Wang¹, Zhenhuan Zhao¹, Peng Zhong¹, Peipei Li¹, Tao Du³, Hossam Haick⁴, Weiwei Wu⁵

Affiliations

¹ School of Advanced Materials and Nanotechnology, Xidian University, Xi'an, Shaanxi, 710126, People's Republic of China.
² School of Aerospace Science and Technology, Xidian University, Xi'an, Shaanxi, 710126, People's Republic of China.
³ School of Advanced Materials and Nanotechnology, Xidian University, Xi'an, Shaanxi, 710126, People's Republic of China. taodu@xidian.edu.cn.
⁴ Department of Chemical Engineering and Russell Berrie Nanotechnology Institute, Technion-Israel Institute of Technology, 3200003, Haifa, Israel. hhossam@technion.ac.il.
⁵ School of Advanced Materials and Nanotechnology, Xidian University, Xi'an, Shaanxi, 710126, People's Republic of China. wwwu@xidian.edu.cn.

Abstract

A good method of synthesizing Ti₃C₂T_x (MXene) is critical for ensuring its success in practical applications, e.g., electromagnetic interference shielding, electrochemical energy storage, catalysis, sensors, and biomedicine. The main concerns focus on the moderation of the approach, yield, and product quality. Herein, a modified approach, organic solvent-assisted intercalation and collection, was developed to prepare Ti₃C₂T_x flakes. The new approach simultaneously solves all the concerns, featuring a low requirement for facility (centrifugation speed < 4000 rpm in whole process), gram-level preparation with remarkable yield (46.3%), a good electrical conductivity (8672 S cm^-1), an outstanding capacitive performance (352 F g^-1), and easy control over the dimension of Ti₃C₂T_x flakes (0.47-4.60 μm²). This approach not only gives a superb example for the synthesis of other MXene materials in laboratory, but sheds new light for the future mass production of Ti₃C₂T_x MXene.

Keywords: Controllable sizes; High yield; MXenes; Two-dimensional materials.