1. Henan International Joint Laboratory of MXene Materials Microstructure, College of Physics and Electronic Engineering, Nanyang Normal University, Nanyang 473061, P. R. China
2. Key Laboratory of Microelectronics and Energy of Henan Province, Engineering Research Center for MXene Energy Storage Materials of Henan Province, Henan Joint International Research Laboratory of New Energy Storage Technology, Xinyang Normal University, Xinyang 464000, P. R. China
3. School of Mathematics and Physics, Anqing Normal University, Anqing 246133, P. R. China
4. Department of Physics, Department of Materials Science & Engineering, and Department of Biomedical Engineering, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China