Development of ZnO/AlFeO₃ composite via hydrothermal method as supercapacitor electrode

The conversion and preservation of energy have been the subject of extensive research because of the increasing need for renewable and pollution-free energy sources. With an extended lifespan, excellent charge-discharge properties, and substantial power density, electrochemical supercapacitors are a special class of potential energy storage systems that find use in various processes. Much effort has been put into improving the electrode material’s composition to boost supercapacitors’ performance. In this work, hydrothermally generated ZnO/AlFeO₃ composite was analyzed by several physical and chemical characterizations to be an effective and high-performing electrode material. According to evaluated data, the ZnO/AlFeO₃ composite exhibited a pure crystalline phase, increased surface area, and heightened electrochemical efficiency showing a specific capacitance of 1232 F/g at 1 A/g with 52 Wh/kg of specific energy and 276 W/kg of specific power along with favorable CV stability after 5000th cycles. Better electrical characteristics were displayed by the ZnO/AlFeO₃ composite, as evidenced by the composite’s reduced solution resistance and lower charge transfer resistance in the impedance outcomes. The ZnO/AlFeO₃ composite demonstrated extraordinary efficiency by displaying enhanced ion mobility, better electrical conductivity, and a quick charge-storing technique, indicating the potential of the ZnO/AlFeO₃ composite for the upcoming era of power storage.