Spray Synthesized Mn‐doped CuO Electrodes for High Performance Supercapacitor

Abstract

AbstractA pristine copper oxide and manganese‐doped copper oxide nanostructured films were prepared by simple spray pyrolysis technique. A study of the effects of Mn doping with three different concentrations as 2, 4, and 6 wt % were studied in the view of enhancement of supercapacitive performance of copper oxide electrode. The 6 wt % manganese‐doped copper oxide thin film changed their surface morphology considerably favorable to the exchange of ions in the Na2SO4 electrolyte. The electrochemical properties of the pristine copper oxide and manganese‐doped copper oxide were investigated in 1 M Na2SO4 electrolyte within the potential window of −1.0 to 0.4 V. A maximum specific capacitance of 801.61 F/g was obtained for the manganese‐doped copper oxide thin film electrode.