Chandrasekaran, M. and Noel, M. and Krishnan, V. (1986) Voltammetric behaviour of benzophenone on glassy carbon electrode in aqueous medium: a quantitat'ive evaluation of p~ dependent adsorption effects. Bulletin of Electrochemistry , 2 (5). pp. 469-472. ISSN 0256-1654

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Abstract

Voltammetric behaviour of benzophenone reduction on glassy carbon (GCI electrode was evaluated and the results were compared with the behaviour on mercury electrode reported in the literature. In strong alkaline conditions (water containing 50% ethanol and 0.1 M NBu4 OH medium), although the same product is formed on mercury as well under similar conditions, the reaction mechanism is quite differe1.t on both electrodes. GC stabilises the product and shifts the reduction potential by as much as 200 mV. E, is also found to be independent of pH on GC electrodes. In addition to this, a time-dependent adsorption pre-wave is noticed in the lower pH (6.0i. The adsorption charge reaches maximum value corresponding to about 30% coverage of GC electrode surface. The adsorption effects depend on the nature of the GC surface as well as the anion of the supporting electrolyte medium.

Item Type:	Article
Uncontrolled Keywords:	Voltammetry; Glassy carbon electrode; Benzophenone
Subjects:	Electroorganic
Divisions:	UNSPECIFIED
Depositing User:	ttbdar CECRI
Date Deposited:	17 Mar 2012 07:54
Last Modified:	17 Mar 2012 07:54
URI:	http://cecri.csircentral.net/id/eprint/2066

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