Radiation‐Induced Self‐Assembly of Ti<sub>3</sub>C<sub>2</sub>T<i><sub>x</sub></i> with Improved Electrochemical Performance for Supercapacitor
Yang Hu, Lin Wang, Tingrui Lin, Na Zhao, Mengni Shi, Jing Peng, Jiuqiang Li, Wei‐Qun Shi, Maolin Zhai
Abstract
Abstract As a new family of 2D materials, MXenes have already shown a broad application prospect in energy storage. However, the inevitable restacking of MXene nanosheets always limits their performance. Here, a facile and environmentally friendly approach is developed to fabricate self‐assembly Ti 3 C 2 T x MXene (named SA‐Ti 3 C 2 T x ) via γ‐irradiation. The absorbed dose has obvious influence on the self‐assembly of SA‐Ti 3 C 2 T x by changing the surface charge characteristics and groups to make the nanosheets assembled into large slices with different structure. At dose of 20 kGy, radiation‐synthesized SA‐Ti 3 C 2 T x (SA‐Ti 3 C 2 T x ‐20) possesses the crumpled structure which exhibits larger specific surface area, enhanced conductivity, and larger specific capacitance, compared with those of original Ti 3 C 2 T x . SA‐Ti 3 C 2 T x ‐20 also shows excellent rate performance and cycling stability. This study paves the way for the modification and assembly of MXenes with improved electrochemical performance.