Renganathan, N.G. and Venkatesan, V.K. (1990) Kinetics of deposition and dissolution of cobalt using cobalt amalgam. Bulletin of Electrochemistry, 06 (03). pp. 294-295. ISSN 0256-1654

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Abstract

Kinetics of cobalt on cobalt amalgam electrodes are discussed in the present investigation. The preparation of the cobalt amalgam by a simple and insitu method employing rotating platinum based mercury film electrode has been indicated. The amalgam thus prepared was subjected to anodic and cathodic polarization. The linear sweep voltammogram obtained for the reduction of Co(II) ion and the anodic dissolution of cobalt from amalgam electrode in solutions containing different concentrations of sodium sulphamate and sodium chloride at the sweep rate of 0.01 V.s-1 shows one pair of cathodic and one pair of anodic peaks. With increase in concentration of anions, in general, peak height decreases and at the highest concentration, it gets flattened. The peaks are absent in sodium sulphate solution. From the sweep rate dependence, the anodic and cathodic transfer coefficient values are calculated. Probable mechanism for the deposition and dissolution of cobalt from cobalt amalgam electrodes has been suggested

Item Type:	Article
Uncontrolled Keywords:	Mercury film electrodes; Cobalt amalgam; Cyclic voltammetry
Subjects:	Electrochemical Power Sources
Divisions:	UNSPECIFIED
Depositing User:	ttbdu cecri
Date Deposited:	21 May 2012 16:36
Last Modified:	21 May 2012 16:36
URI:	http://cecri.csircentral.net/id/eprint/2636

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