A Comparative Study of Electrochemical Kinetic Parameters by the Potential Step Method. Electrode Reactions of CyDTA and EDTA Complexes of Cu(II) at DME

Bhat, GA (1976) A Comparative Study of Electrochemical Kinetic Parameters by the Potential Step Method. Electrode Reactions of CyDTA and EDTA Complexes of Cu(II) at DME. In: Bulletin of the Chemical Society of Japan, 49 (10). pp. 2855-2857.

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Abstract

By using the same current-time (I-t) curves, electrochemical kinetic parameters are determined by two methods, (a) using the ratio of current at a given potential to the diffusion-controlled limiting current and (b) curve fitting method, for the reduction of Cu(II)–CyDTA complex. The analysis by the method (a) shows that the rate determining step involves only one electron although the overall reduction of the complex involves two electrons suggesting thereby the stepwise reduction of the complex. The nature of I-t curves suggests the adsorption of intermediate species at the electrode surface. Under these circumstances more reliable kinetic parameters can be obtained by the method (a) compared to that of (b). Similar observations are found in the case of reduction of Cu(II)–EDTA complex.

Item Type:	Journal Article
Publication:	Bulletin of the Chemical Society of Japan
Publisher:	Chemical Society of Japan
Additional Information:	Copyright of this article belongs to Chemical Society of Japan.
Department/Centre:	Division of Chemical Sciences > Inorganic & Physical Chemistry
Date Deposited:	11 Dec 2009 06:37
Last Modified:	01 Oct 2010 05:13
URI:	http://eprints.iisc.ac.in/id/eprint/24025

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