Nitrogen-doped Ti3C2Tx MXene prepared by thermal decomposition of ammonium salts and its application in flexible quasi-solid-state supercapacitor - Man Cai; Xiaochun Wei; Haifu Huang; Fulin Yuan; Cong Li; Shuaikai Xu; Xianqing Liang; Wenzheng Zhou; Jin Guo (Chemical Engineering Journal, 2023)