World Journal of Chemical Education
ISSN (Print): 2375-1665 ISSN (Online): 2375-1657 Website: http://www.sciepub.com/journal/wjce Editor-in-chief: Prof. V. Jagannadham
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World Journal of Chemical Education. 2019, 7(2), 53-64
DOI: 10.12691/wjce-7-2-4
Open AccessSpecial Issue

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

Achim Habekost1,

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

Pub. Date: April 11, 2019

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

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.

Keywords:
(Spectro-)Electrochemistry electrochemical simulation and fitting with DigiElch professional®

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