Figure 14.

(A) Double layer, quantum capacitance, and total capacitance of bare and oxygen-functionalized MXenes. This panel was reproduced with permission from ref (91). Copyright 2021 IOP Publishing, Ltd. Theoretical quantum capacitance of (B) functionalized Ti₂C and Nb₂C MXenes,⁹⁴ (C) functionalized SC₂C MXene with different termination groups,⁹⁵ (D) MXene with a F-terminated group,⁹⁶ and (E) V₂C and Mo₂C MXenes with respect to the number of layers. Data for panels B–E are either taken from the text/table or extracted from the corresponding references using the WebPlotDigitizer software authored by Ankit Rohatgi. (E) Experimental charge storage performance of the modified Ti₃C₂T_x MXene/KOH electrolyte symmetric cell. This panel was reproduced with permission from ref (97). Copyright 2015 American Chemical Society.