MXene/CNTs films prepared by electrophoretic deposition for supercapacitor electrodes

Abstract Binder-free Ti 3 C 2 MXene/carbon nanotubes (Ti 3 C 2 /CNTs) films were successfully deposited onto graphite paper via electrophoretic deposition (EPD) method for supercapacitor electrodes. The as-prepared Ti 3 C 2 /CNTs electrode exhibits enhanced specific capacitance, approximately 1.5 times and 2.6 times of that of pristine Ti 3 C 2 and CNTs films, respectively. Impressively, Ti 3 C 2 /CNTs electrodes demonstrate excellent cycling stability, without capacitance decay over 10,000 cycles. Incorporation of CNTs into MXene builds a robust structure, preventing MXene from restacking, and thus leading to the enhanced electrochemical performance. These results suggest that robust Ti 3 C 2 /CNTs films can be prepared by a simple yet effective EPD method, potentially applicable to other hybrid MXene systems.