Show simple item record

dc.contributor.authorLeeuwen, Herman P. van
dc.contributor.authorPuy Llorens, Jaume
dc.contributor.authorGalceran i Nogués, Josep
dc.contributor.authorCecilia Averós, Joan
dc.date.accessioned2015-11-03T09:06:10Z
dc.date.available2015-11-03T09:06:10Z
dc.date.issued2002
dc.identifier.issn1572-6657
dc.identifier.urihttp://hdl.handle.net/10459.1/48897
dc.description.abstractThe voltammetric response of metal complex systems with various labilities is analyzed by rigorous numerical simulation with the Finite Element Method of the time-dependent concentration profiles of the different species. The ensuing exact fluxes and the corresponding currents are compared to those derived from the Koutecký<br>Koryta (KK) approximation which assumes a discontinuous transition in the concentration profiles from non-labile to labile behavior. The results indicate a relatively far-reaching correctness of the KK approximation in the complete kinetic range from non-labile to labile complexes, as long as the kinetic flux is computed from the effective concentration of the complex in the reaction layer. Some approximate analytical expressions for this concentration are provided. The KK approximation is shown to be applicable for any metal-to-ligand ratio, provided that the thickness of the reaction layer is expressed in terms of the ligand concentration at the electrode surface.
dc.format.mimetypeapplication/pdf
dc.language.isoeng
dc.publisherElsevier
dc.relation.isformatofVersió postprint del document publicat a: https://doi.org/10.1016/S0022-0728(02)00745-3
dc.relation.ispartofJournal of Electroanalytical Chemistry, 2002, vol. 526, num. 1-2, p. 10-18
dc.rights(c) Elsevier, 2002
dc.subject.classificationElectroquímica
dc.subject.otherElectrochemistry
dc.titleEvaluation of the Koutecký-Koryta approximation for voltammetric currents generated by metal complex systems with various labilities
dc.typeinfo:eu-repo/semantics/article
dc.date.updated2015-11-03T09:06:10Z
dc.identifier.idgrec002955
dc.type.versioninfo:eu-repo/semantics/acceptedVersion
dc.rights.accessRightsinfo:eu-repo/semantics/openAccess
dc.identifier.doihttps://doi.org/10.1016/S0022-0728(02)00745-3


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record