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<strong>Optimizations of preparative parameters in potentiodynamic synthesis of cobalt oxide thin films: Capacitive approach</strong>

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Title Statement <strong>Optimizations of preparative parameters in potentiodynamic synthesis of cobalt oxide thin films: Capacitive approach</strong>
 
Added Entry - Uncontrolled Name Lokahnde, Balkrishna Jagannath; Solapur University, Solapur.
Khavale, S V ; Solapur University, Solapur.
 
Uncontrolled Index Term Potentiodynamic electrodeposition; Cobalt oxide; Supercapacitor electrode; Cyclic voltammogram; Impedance
 
Summary, etc. The present article reports synthesis of Co<sub>3</sub>O<sub>4</sub> thin films by facile potentiodynamic-electrodeposition technique using variations in the preparative parameters such as ingredient, solution concentration and deposition time. The prepared samples were analysed using XRD, FE-SEM, TEM, cyclic voltammetry, chronopotentiometry and electrochemical impedance spectroscopy. Crystallographic study shows polycrystalline face centered cubic spinel structure of the deposit. Cyclic voltammogram reveals pseudocapacitive behavior. The calculated highest value of specific capacitance at the scan rate 5 mV/s was 237.68 F/gin 1 M KOH, within the potential window -0.92 to 0.45 V versus Ag/AgCl. The calculated maximum value of specific energy, specific power and columbic efficiency from chronopotentiometry were 4.91 Wh/kg, 28.69 kW/kg and 94.78%, respectively. The internal resistance observed using electrochemical impedance spectroscopy was~ 3.55 Ω.
 
Publication, Distribution, Etc. Indian Journal of Pure & Applied Physics (IJPAP)
2019-04-01 13:41:41
 
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http://op.niscair.res.in/index.php/IJPAP/article/view/16548
 
Data Source Entry Indian Journal of Pure & Applied Physics (IJPAP); ##issue.vol## 57, ##issue.no## 3 (2019): Indian Journal of Pure & Applied Physics
 
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Nonspecific Relationship Entry http://op.niscair.res.in/index.php/IJPAP/article/download/16548/49573
http://op.niscair.res.in/index.php/IJPAP/article/download/16548/49574
http://op.niscair.res.in/index.php/IJPAP/article/download/16548/49575
http://op.niscair.res.in/index.php/IJPAP/article/download/16548/49576
http://op.niscair.res.in/index.php/IJPAP/article/download/16548/49578
http://op.niscair.res.in/index.php/IJPAP/article/download/16548/49579
http://op.niscair.res.in/index.php/IJPAP/article/download/16548/49582
 
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