Exploring the Potential of Green-Synthesized Copper Oxide Electrodes for Energy Storage Applications

Abstract

Green synthesis-assisted transition metal oxides are showing an impressive potential material in charge storage capabilities owing to their high surface area and redox properties. This present work describes the preparation of copper oxide nanoparticles utilizing with Citron (CT) Peel extracted solution via coprecipitation method for supercapacitor applications. In addition, the created CuO and CuO-CT nanoparticles are included to characterize the crystallite size, surface morphology, optical energy band gap and elemental composition has investigated through the following analysis methods such as XRD, TEM, FTIR, UV-DRS and XPS, etc. The electrochemical tests are performed via three-electrode configuration with a typical 1 M KOH electrolyte solution as a result, the electrodes reveal specific capacitance values of CuO (35.2 Fg⁻¹) and CuO-CT (2192 Fg⁻¹) at a current density rate of 4 Ag-¹. The outcome of the electrochemical performance significantly enhances the electrical and optical characteristics. The green synthesis of CuO nanoparticles will be ideal for energy storage in a variety of electronic applications.