Convolutive modelling of the disk electrode geometry under reversible conditions

Peter J. Mahon; Keith B. Oldham

doi:10.1016/j.electacta.2004.07.018

Convolutive modelling of the disk electrode geometry under reversible conditions

Peter J. Mahon^*, Keith B. Oldham

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

19 Citations (Scopus)

Abstract

The disk electrode is one of the most readily constructed electrode geometries but the perimetric discontinuity complicates the theoretical analysis. Under reversible conditions, this system simplifies to a situation that can be described by a convolution expression and can therefore be modelled by the method known as convolutive modelling. Convolutive modelling is here employed to simulate cyclic voltammograms at a disk electrode; those results are compared to fast quasi-explicit finite difference digital simulations. The inaccuracy of the latter method is thereby exposed. In addition, current reversal chronopotentiometry at a disk is modelled.

Original language	English
Pages (from-to)	5049-5054
Number of pages	6
Journal	Electrochimica Acta
Volume	49
Issue number	28
DOIs	https://doi.org/10.1016/j.electacta.2004.07.018
Publication status	Published - 1 Nov 2004

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10.1016/j.electacta.2004.07.018

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title = "Convolutive modelling of the disk electrode geometry under reversible conditions",

abstract = "The disk electrode is one of the most readily constructed electrode geometries but the perimetric discontinuity complicates the theoretical analysis. Under reversible conditions, this system simplifies to a situation that can be described by a convolution expression and can therefore be modelled by the method known as convolutive modelling. Convolutive modelling is here employed to simulate cyclic voltammograms at a disk electrode; those results are compared to fast quasi-explicit finite difference digital simulations. The inaccuracy of the latter method is thereby exposed. In addition, current reversal chronopotentiometry at a disk is modelled.",

keywords = "Chronopotentiometry, Convolutive modelling, Cope-Tallman method, Cyclic voltammetry, Disk electrodes, FQEFD simulation",

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AU - Oldham, Keith B.

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AB - The disk electrode is one of the most readily constructed electrode geometries but the perimetric discontinuity complicates the theoretical analysis. Under reversible conditions, this system simplifies to a situation that can be described by a convolution expression and can therefore be modelled by the method known as convolutive modelling. Convolutive modelling is here employed to simulate cyclic voltammograms at a disk electrode; those results are compared to fast quasi-explicit finite difference digital simulations. The inaccuracy of the latter method is thereby exposed. In addition, current reversal chronopotentiometry at a disk is modelled.

KW - Chronopotentiometry

KW - Convolutive modelling

KW - Cope-Tallman method

KW - Cyclic voltammetry

KW - Disk electrodes

KW - FQEFD simulation

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EP - 5054

JO - Electrochimica Acta

JF - Electrochimica Acta

IS - 28

ER -

Convolutive modelling of the disk electrode geometry under reversible conditions

Abstract

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