Facile fabrication of BiFeO3/g-C3N4 nanohybrid as efficient electrode materials for supercapacitor application

Abstract

The motivation for developing nanostructured electrode materials arises from the increasing demands of energy requirements of the upcoming generation due to excessive use of fossil fuels. The latest eco-friendly energy storage devices like supercapacitors that offers significant economic and environmental advantages, which possesses prolonged lifespan and a remarkable power density. In this study, structural evolution and electrochemical performance of BiFeO3@g-CN electrode material is characterized. The electrochemical properties of BiFeO3@g-CN are determined by using different analytical tests. The specific capacitance of pure BiFeO3 and BiFeO3@g-CN composite shows 557 and 1164 F/g, respectively calculating from galvanostatic charge-discharge plots. A number of factors, including the presence of several transition metal oxide, specific surface area (SSA), a nitrogen-rich structure of g-CN that allows quick ion transport which contributes to enhanced electrochemical efficiency. The material's structural stability was confirmed by its electrochemical stability after the 5000th cycle after 50 h. The BiFeO3@g-CN showed a lower charge transfer resistance (0.3 Ω) evaluated from electrochemical impedance spectroscopy analysis. The improvement in electrochemical properties of BiFeO3@g-CN electrode material indicates its potential suitability for integration into supercapacitors. The material's exceptional stability demonstrates its potential as a viable candidate for next-generation energy storage devices.