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G.D. Allen, M.C. Buzzeo, I.G. Davies, C. Villagran, C. Hardacre, R.G. Compton, A comparative study on the reactivity of electrogenerated bromine with cyclohexene in acetonitrile and the room temperature ionic liquid, 1-butyl-3-methylimidazolium bis (trifluoromethylsulfonyl)imide, J. Phys. Chem. B 108, 16322. (2004).

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Article

Simulation and Fitting of Cyclic Voltammetry and Chronoamperometry Curves of Electrochemical Reactions with Different Mechanisms — A Didactic Perspective

1University of Ludwigsburg, Department of Chemistry, Ludwigsburg, Germany


World Journal of Chemical Education. 2019, Vol. 7 No. 2, 53-64
DOI: 10.12691/wjce-7-2-4
Copyright © 2019 Science and Education Publishing

Cite this paper:
Achim Habekost. Simulation and Fitting of Cyclic Voltammetry and Chronoamperometry Curves of Electrochemical Reactions with Different Mechanisms — A Didactic Perspective. World Journal of Chemical Education. 2019; 7(2):53-64. doi: 10.12691/wjce-7-2-4.

Correspondence to: Achim  Habekost, University of Ludwigsburg, Department of Chemistry, Ludwigsburg, Germany. Email: habekost@ph-ludwigsburg.de

Abstract

Electrochemical simulations are presented to introduce students to the capabilities of cyclic voltammetry (CV). The systems chosen involve one and two-electron transfers, and can be delineated with CV as being reversible, quasi-reversible, or irreversible. The rate constants for the electron transfer can be estimated by the theory of Nicholson and Shain. DigiElch, professional® provides the opportunity of fitting experimental CVs after assuming a reaction scheme. We will demonstrate data fitting for two different mechanisms, electron transfer E and electron transfer followed by a chemical reaction with a subsequent electron transfer of the product ECE.

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