The surface catalytic mechanism: a comparative study with square-wave and staircase cyclic voltammetry

Mirceski, Valentin and Gulaboski, Rubin (2003) The surface catalytic mechanism: a comparative study with square-wave and staircase cyclic voltammetry. Journal of Solid State Electrochemistry, 7. pp. 157-165. ISSN 10.1007/s10008-002-0290-7

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Abstract

A pseudo-first-order catalytic mechanism in which both reactant and product of a redox reaction are strongly immobilized on an electrode surface is theoretically analysed under conditions of square-wave (SWV) and staircase cyclic voltammetry (SCV). A mathematical procedure is developed under diffusionless conditions. The relationships between the properties of the voltammetric response and both the kinetic parameters of the redox reaction and the parameters of the excitation signal are studied. The phenomenon of the quasi-reversible maximum is discussed. A comparative study between SWV and SCV is presented and the limitations and advantages of both techniques, from analytical and kinetic points of view, are discussed. The theoretical predictions are experimentally confirmed by the redox reaction of azobenzene in the presence of hydrogen peroxide as an oxidizing agent.

Item Type: Article
Subjects: Natural sciences > Chemical sciences
Natural sciences > Matematics
Natural sciences > Physical sciences
Divisions: Faculty of Agriculture
Depositing User: Rubin Gulaboski
Date Deposited: 31 Oct 2012 23:09
Last Modified: 31 Oct 2012 23:09
URI: http://eprints.ugd.edu.mk/id/eprint/208

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