Hydrothermal synthesis of V₂O₅/g-C₃N₄ nanocomposite for high performance supercapacitor

¹ School of Computer Science and Artificial Intelligence, SR University, Warangal, Telangana 506371, India
² Department of Information Technology, College of Computer and Information Sciences, Majmaah University, Al-Majmaah 15341, Saudi Arabia
³ Department of Applied Sciences and Humanities, Greater Noida College, Greater Noida 201310, India

^* Corresponding author: This email address is being protected from spambots. You need JavaScript enabled to view it.

Published online: 5 March 2026

Abstract

Development of high-performance energy storage devices is one of the basic needs of the current human society. Along with electrolyte, electrode plays an important role for any energy storage device. The present work focuses on the preparation of a novel nanocomposite of V₂O₅ and g-C₃N₄ employing hydrothermal technique. Post synthesis the nanocomposite was material characterized using different characterization techniques such as Field Emission Scanning Electron Microscopy (FESEM), Thermo-gravimetric analysis (TGA) and X-ray diffraction (XRD). Further electrochemical performance of the synthesized nanocomposite was evaluated in a two-electrode system. High specific capacitance (~180 F g⁻¹), specific energy (~6.22 Wh kg⁻¹) and specific power (~3. 13 kW kg⁻¹) were noted. This study demonstrates the potential of prepared nanocomposite as robust and effective electrode materials, providing a viable path towards sustainable energy storage systems.