EFFICACY APPRAISAL OF COBALT OXIDE ELECTRODE MODULE ASA PATRON OF SUSTAINABLE ENERGY HARVESTING SUPERCAPACITORShubhangi Gavande, Shivani Gavande and B. R. KarcheAbstract The objective of the investigation was to study the potential and efficacy of Cobalt oxide as a cost-effectiveecofriendly substitute against the currently used high-cost supercapacitors. During the study, Cobalt oxidewas successfully studied for its ecofriendly approach and cost-effective potential as a supercapacitor.Electrodeposited Cobalt oxide electrode, deposited on stainless steel substrates at room temperature usingCobalt acetate as the precursor solution by galvanostatic route was studied for its efficacy as a supercapacitor.The as-deposited electrodes were annealed at 400 °C, 500 °C and 600 °C and were analytically compared.The structural analysis was done by X-ray diffraction technique, morphological analysis by SEM andwettability studies were carried by contact angle measurement at different annealed temperatures. Theelectrochemical analysis to investigate supercapacitive behavior of the as-deposited Cobalt oxide thin filmelectrode was performed in aqueous 1M Na2SO4 at three different annealed temperatures. The electrochemicalproperties of the deposited thin film electrode were done through cyclic voltammetry and galvanostaticcharge-discharge analysis. The thin film electrode showed maximum specific capacitance of 295 Fg-1 at5mVs-1 scan rate in 1M aqueous Na2SO4 with Specific energy 3.642Wh/kg, Specific Power 3 kW/kg and56.70 % Coulomb efficiency when annealed at 500 °C temperature. |