Journal
ENERGY
Volume 64, Issue -, Pages 234-241Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.energy.2013.10.016
Keywords
Electrodeposition mode; Cobalt oxide; Supercapacitor
Categories
Funding
- Council for Scientific and Industrial Research (CSIR), New Delhi (India) [03(1165)/10/EMR-II]
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In the present paper, the different modes of electrodeposition such as PD (potentiodynamic), PS (potentiostatic) and GS (galvanostatic) have been successfully employed for the deposition of cobalt oxide and subsequently the effect of these modes on supercapacitive performance has been studied. The films were characterized for structural and morphological properties using XRD (X-ray diffraction), FTIR (fourier transform infrared spectroscopy), FT-Raman spectroscopy and SEM (scanning electron microscopy). The electrochemical performance of the films was tested using cyclic voltammetry, galvanostatic charge-discharge and EIS (electrochemical impedance spectroscopy) techniques. The cobalt oxide film deposited by potentiostatic mode showed maximum values of specific capacitance, specific energy and specific power as 248 F g(-1), 2.3 Wh kg(-1) and 3.5 kW kg(-1). (C) 2013 Elsevier Ltd. All rights reserved.
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