Role of the intercalated ions on the high capacitance behavior of Ti 3 C 2 T x MXene nanohybrids

Abstract

Ti3C2Tx (MXene) is prone to surface oxidation because of the presence of oxygen surface terminals in its surfaces. In this work, the effect of oxygen surface terminals has been reduced by replacing it with other surface terminals or thin layers of heteroatom at the interlayers. These resulted in increasing the interlayer spacing from 9.3 Å up to 12.5 Å with better flexibility properties, thereby facilitating electron/mass transports by exposing enough active surface areas. The carbon nanoplated MXene showed enhanced specific capacitance of 110 F/g at 2 mV/s in LiOH electrolytes for superior supercapacitor applications.