Mathematical modelling and numerical simulation of cyclic voltammetry at an electrode covered with an insulating film containing cylindrical micropores

A general mathematical model for cyclic voltammetry at a planar electrode modified with an insulating surface coating containing non-interconnected cylindrical pores is developed and solved using numerical simulation. Electroactive species are assumed to diffusionally access the electrode only via t...

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Bibliographic Details
Published inJournal of electroanalytical chemistry (Lausanne, Switzerland) Vol. 587; no. 2; pp. 254 - 262
Main Authors Chevallier, François G., Jiang, Li, Jones, Timothy G.J., Compton, Richard G.
Format Journal Article
LanguageEnglish
Published Amsterdam Elsevier B.V 15.02.2006
Elsevier Science
Subjects
Chemistry
Cyclic voltammetry
Electrochemistry
Exact sciences and technology
General and physical chemistry
Mathematical modelling
Membrane modified electrodes
Porous electrodes
Porous films
Study of interfaces
Transport phenomena
Cyclic voltammetry
Porous electrodes
Mathematical modelling
Porous films
Membrane modified electrodes
Flat electrode
Membrane electrode
Porous electrode
Theoretical study
Electrode electrolyte interface
Insulating thin films
Mass transfer
Transport process
Numerical simulation
Mathematical model
Modified material
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Summary:A general mathematical model for cyclic voltammetry at a planar electrode modified with an insulating surface coating containing non-interconnected cylindrical pores is developed and solved using numerical simulation. Electroactive species are assumed to diffusionally access the electrode only via the pores. The model allows us to explore the effects of different physical and electrochemical parameters on the mass transport properties of such systems and to highlight how they deviate from linear diffusion to a macroelectrode.
ISSN:1572-6657
1873-2569
DOI:10.1016/j.jelechem.2005.11.016