Adaptative finite element simulation of currents at microelectrodes to a guaranteed accuracy. First-order EC ' mechanism at inlaid and recessed discs

In this paper we extend the introductory work described in the accompanying papers on the use of adaptive finite element methods in electrochemical simulation (K. Harriman et al., Electrochem. Commun. 2 (2000) 150 and 157) to the case of a (pseudo) first-order EC' reaction mechanism at both an...

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Main Authors: Harriman, K, Gavaghan, D, Houston, P, Suli, E
Format: Journal article
Language:English
Published: 2000
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author Harriman, K
Gavaghan, D
Houston, P
Suli, E
author_facet Harriman, K
Gavaghan, D
Houston, P
Suli, E
author_sort Harriman, K
collection OXFORD
description In this paper we extend the introductory work described in the accompanying papers on the use of adaptive finite element methods in electrochemical simulation (K. Harriman et al., Electrochem. Commun. 2 (2000) 150 and 157) to the case of a (pseudo) first-order EC' reaction mechanism at both an inlaid and a recessed disc. The recessed disc is shown to be a particularly suitable example for illustrating the power of the technique in providing the simulated current to a guaranteed accuracy on near-optimal meshes. For both problems we demonstrate that we can obtain excellent accuracy across the spectrum of reaction rates using just a few seconds of CPU time. Our results also confirm the accuracy of some recently published analytical solutions to these problems (L. Rajendran, M.V. Sangaranarayanan, J. Phys. Chem. B 103 (1999) 1518-1524; J. Galceran et al., J. Electroanal. Chem. (1999) in press). (C) 2000 Elsevier Science S.A.
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spelling oxford-uuid:24c99b06-55e9-48cb-b4e5-66eb7ce094452022-03-26T11:52:00ZAdaptative finite element simulation of currents at microelectrodes to a guaranteed accuracy. First-order EC ' mechanism at inlaid and recessed discsJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:24c99b06-55e9-48cb-b4e5-66eb7ce09445EnglishSymplectic Elements at Oxford2000Harriman, KGavaghan, DHouston, PSuli, EIn this paper we extend the introductory work described in the accompanying papers on the use of adaptive finite element methods in electrochemical simulation (K. Harriman et al., Electrochem. Commun. 2 (2000) 150 and 157) to the case of a (pseudo) first-order EC' reaction mechanism at both an inlaid and a recessed disc. The recessed disc is shown to be a particularly suitable example for illustrating the power of the technique in providing the simulated current to a guaranteed accuracy on near-optimal meshes. For both problems we demonstrate that we can obtain excellent accuracy across the spectrum of reaction rates using just a few seconds of CPU time. Our results also confirm the accuracy of some recently published analytical solutions to these problems (L. Rajendran, M.V. Sangaranarayanan, J. Phys. Chem. B 103 (1999) 1518-1524; J. Galceran et al., J. Electroanal. Chem. (1999) in press). (C) 2000 Elsevier Science S.A.
spellingShingle Harriman, K
Gavaghan, D
Houston, P
Suli, E
Adaptative finite element simulation of currents at microelectrodes to a guaranteed accuracy. First-order EC ' mechanism at inlaid and recessed discs
title Adaptative finite element simulation of currents at microelectrodes to a guaranteed accuracy. First-order EC ' mechanism at inlaid and recessed discs
title_full Adaptative finite element simulation of currents at microelectrodes to a guaranteed accuracy. First-order EC ' mechanism at inlaid and recessed discs
title_fullStr Adaptative finite element simulation of currents at microelectrodes to a guaranteed accuracy. First-order EC ' mechanism at inlaid and recessed discs
title_full_unstemmed Adaptative finite element simulation of currents at microelectrodes to a guaranteed accuracy. First-order EC ' mechanism at inlaid and recessed discs
title_short Adaptative finite element simulation of currents at microelectrodes to a guaranteed accuracy. First-order EC ' mechanism at inlaid and recessed discs
title_sort adaptative finite element simulation of currents at microelectrodes to a guaranteed accuracy first order ec mechanism at inlaid and recessed discs
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AT sulie adaptativefiniteelementsimulationofcurrentsatmicroelectrodestoaguaranteedaccuracyfirstorderecmechanismatinlaidandrecesseddiscs