Enhanced electrochemical performance of vanadium carbide MXene composites for supercapacitors

Two-dimensional (2D) surface-terminated layered transition metal carbide MXenes with high electrochemical performance paved the way for robust energy storage supercapacitor devices. However, because of 2D nature MXene flakes, self-restacking flakes limits use all flake functionalized surfaces in electrodes. Here, we report synthesis V2CTx and multiwall carbon nanotube (MWCNT)/V2CTx composites as a promising electrode material hybrid Our electrodes exhibited enhanced gravimetric capacitance 1842 F g−1 at scan rate 2 mV s−1, specific charge capacity 62.5 A h/g. Moreover, presented an excellent performance, durability, retention 94% lasted up to 10 000 cycles. Density functional theory calculations provided electronic structural properties considered MWCNT@V2CTx. Therefore, introduction MWCNTs conductivity reaction kinetics facilitates mechanism useful next-generation smart