Fabrication of magnesium indium oxide (MgIn2O4) based on rGO for supercapacitor application

Abstract

In recent decades, researchers have gained interest in metal-based oxide with carbon for supercapacitive electrode material primarily due to their exceptional power density, larger active surface area, distinctive reversibility and cost-effectiveness. This study provides the novel fabrication of MgIn2O4 (MIO) and MgIn2O@rGO via hydrothermal technique regarding supercapacitor electrodes. The supercapacitive properties of MgIn2O4 (MIO) and MgIn2O@rGO nanostructures were assessed in an aqueous 2.0 M KOH electrolytic solution using various electrochemical analyses. The synthesized MIO@rGO nanostructures demonstrated a brilliant capacitance of 986.09 F g−1 at 10 mV s−1 obtained from CV analysis. Additionally, it demonstrates excellent capacitive performance when combined with rGO and MIO@rGO composite demonstrated the specific capacitance values of 1589.15, 784.93, 674.53 and 452.47 F g− 1 at the current density ranges from 1 to 4 A g− 1, respectively from GCD investigation and also it attained a maximal energy of 59.82 Wh kg−1 and power density of 260.31 W kg−1. Therefore, the newly created material can be utilized in future generations on energy-storing systems, supercapacitor electrodes and energy conversion technologies.