Hydrothermally synthesis and performance evaluation of SmCrO3/rGO electrode for energy storage applications

The rapid use and consumption of fossil fuels harms the environment and reduces energy supplies. However, the development of a substitute for energy reliable sources and energy storage devices is urgently required. Supercapacitors (SCs) are the recognized energy storage system with higher power density (P d ) and stability. Here, the SmCrO 3 /rGO nanocomposite electrodes was hydrothermally produced for supercapacitors. This experiment aimed to determine how rGO affected structural and electrochemical performance of pure SmCrO 3 materials. Various electrochemical test were used to examine into the material's electrochemical performance on three electrode systems. The SmCrO 3 /rGO has specific capacitance (C sp ) of 1135 F g −1 and current density (C d ) of 1 A g −1 , indicating outstanding hybrid performance as assessed by the galvanostatic charge-discharge parameter. Capacitance increased when rGO was transformed to SmCrO 3 because it stimulated faster charge transfer kinetics and greater conductivity. Furthermore, with a higher P d of 720 W kg −1 , and the energy density (E d ) was roughly 90 Wh kg −1 . In addition to showing the potential of the new SmCrO 3 /rGO as an SCs electrode, this work focuses on the ground-breaking technique of generating an ultra-performance, low-cost nanocomposite that might be deployed for several purposes in the future.