Ti₃C₂T_x MXene-embedded MnO₂-based hydrophilic electrospun carbon nanofibers as a freestanding electrode for supercapacitors

Herein, MnO2 nanoflowers are electrodeposited on a self-supported and electroconductive electrode in which 2D Ti3C2Tx nanosheets are encased in carbon nanofibers (MnO2@Ti3C2Tx/CNFs). This improves the conductivity and hydrophilicity of the MnO2 composite electrode. The asymmetric supercapacitor shows a high energy density of 46.4 W h kg(-1) and a power density of 4 kW kg(-1).