Electrochemical Characterization of Cathodized Copper Oxide Thin Films

Abstract

Cathodic electrodeposited copper oxide thin films were prepared using 0.1 M aqueous (distilled water) copper sulfate solution onto the surface of stainless steel substrates. Deposited samples were characterized by structural and morphological analysis using XRD and SeM. Prepared samples were also analyzed using cyclic voltammetry, charge-discharge, and impedance spectroscopy. electrode shows nearly rectangular capacitive behavior. The highest specific capacitance of 62 F/gm was calculated at a scan rate of 1 mV/sec in 1M Na2SO4 electrolyte. The internal resistance observed from the Nyquist plot which is about 1.95 Ω. Using the ZsimpWin software matched equivalent circuit and circuitry parameters were reported.