Vijayakumar, J. and Mohan, S. (2013) Effect of benzyl alcohol and thiourea on electrodeposition of cadmium: electrochemical impedance spectroscopy study. Transactions of the Institute of Metal Finishing, 91 (3). pp. 165-168. ISSN 0020-2967

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Abstract

The adsorption effect of the benzyl alcohol (BA) and thiourea (TU) on the electrodeposition of cadmium from an acid sulphate bath has been studied by electrochemical impedance spectroscopy (EIS). Maximum adsorption of additive was obtained in BA containing medium. Results show that the adsorption increases when the concentration of the additives is increased. The surface adsorption of the additives has lead to a decrease in the double layer capacitance and to an increase in polarisation resistance. The adsorption process is a spontaneous one and follows the Langmuir adsorption isotherm model. From the impedance analysis, it is observed that Cd–TU complexes inhibit the hexagonal like morphology revealed by SEM

Item Type:	Article
Uncontrolled Keywords:	Electrodeposition, EIS, Langmuir, SEM, Cadmium, Additives
Subjects:	Electrodeposition Industrial Metal Finishing
Divisions:	UNSPECIFIED
Depositing User:	Dr. N Meyyappan
Date Deposited:	23 May 2013 10:24
Last Modified:	23 May 2013 10:24
URI:	http://cecri.csircentral.net/id/eprint/3007

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