Fabrication of V₂O₅@g-C₃N₄ nanocomposite by hydrothermal route for use as an improved electrochemical property in supercapacitor applications

The motivation behind the formation of V₂O₅@g-C₃N₄ materials for electrodes having nanostructure comes from the mounting energy requirements of upcoming generation. In present study, we examined the route of fabrication and efficiency evaluation of supercapacitors employing g-C₃N₄ (g-CN) nanosheets decorated with vanadium oxide (V₂O₅) nanoparticles (NPs). The V₂O₅@g-CN was manufactured by hydrothermal method, resulting in a material that exhibited excellent long-term stability during cycling and higher C_s. Using CV, C_s of g-CN, V₂O₅ and the V₂O₅@g-CN were investigated as 331, 730, and 951 F g⁻¹, correspondingly at 10 mV s⁻¹. GCD investigation was employed to evaluate C_s of g-CN, V₂O₅, and V₂O₅@g-CN at 1 A g⁻¹ as 369, 764 and 994 F g⁻¹, correspondingly. The fabricated V₂O₅@g-CN nanocomposite shows remarkable stability over 5000 cycles. The greater electrochemical efficiency of V₂O₅@g-CN was associated to several variables, including existence of multiple valence states of vanadium ions, a large surface area and rapid ion transportation. The results suggest that applying V₂O₅@g-CN as an electrode in energy preservation appliances could be a viable and economical option.