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10.1016/j.jelechem.2019.113549
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Campo DC | Valor | Lengua/Idioma |
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dc.contributor.author | Gonzalez, Joaquin | - |
dc.contributor.author | Sequí Castellano, Jose Alfonso | - |
dc.contributor.other | Facultad de Química | es |
dc.date.accessioned | 2021-04-15T17:15:18Z | - |
dc.date.available | 2021-04-15T17:15:18Z | - |
dc.date.issued | 2019-10 | - |
dc.identifier.citation | Journal of Electroanalytical Chemistry, 2019, 854, 113549 | es |
dc.identifier.uri | http://hdl.handle.net/10201/106621 | - |
dc.description.abstract | Analysis of the Square Wave Voltammetry (SWV) responses of surface confined electroactive probes under finite kinetics conditions, by considering the influence of intermolecular interactions on the current, is presented. This non-ideality gives rise to very significant deviations in the most relevant features of the current potential response as compared with predictions of ideal models. The theoretical model does not require that the dependence of the rate constant with the potential (i. e., Butler-Volmer or Marcus-Hush kinetic formalisms) is explicitly established a priori. Both location and height of the Quasi-Reversible Maximum and symmetry of the SWV current-potential curves are strongly affected by the interaction parameters G=aOO+aRR-2aOR and S=aRR-aOO (with aij being the interaction coefficient for species i and j). Quantitative methods for obtaining kinetic and interaction parameters of the redox probes are presented, based on the measurement of the peak currents and potential under quasi-reversible conditions where the current exhibits two asymmetric peaks. A discussion is done concerning the deviations found in the estimation of the rate constants with SWV when intermolecular interactions are not considered. The above methods have been applied to the characterisation of mixed ferrocenylundecanethiol / decanethiol monolayers on gold electrodes at an ethanolic medium for which the SWV is clearly non-ideal | es |
dc.format | application/pdf | es |
dc.format.extent | 37 | es |
dc.language | eng | es |
dc.relation | Ámbito del proyecto (Europeo, nacional o regional): Regional Agencia/entidad financiadora: Fundación SENECA Convocatoria: Convocatoria de ayudas a las unidades y grupos de excelencia científica de la Región de Murcia (Programa Séneca 2014) Nombre del proyecto: Advances in the study of charge transfer processes at static and dynamic micro-and nano-interfaces Código: 19887/GERM/15 | es |
dc.rights | info:eu-repo/semantics/openAccess | es |
dc.rights | Attribution-NonCommercial-NoDerivatives 4.0 Internacional | * |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/ | * |
dc.subject | Square Wave Voltammetry | es |
dc.subject | Electroactive Monolayer | es |
dc.subject | Electrode kinetics | es |
dc.subject.other | CDU::5 - Ciencias puras y naturales | es |
dc.subject.other | CDU::5 - Ciencias puras y naturales::54 - Química::544 - Química física | es |
dc.title | Influence of Intermolecular Interactions in the Redox Kinetics Performance of Surface Confined Probes by Square Wave Voltammetry | es |
dc.type | info:eu-repo/semantics/article | es |
dc.relation.publisherversion | https://www.sciencedirect.com/science/article/pii/S1572665719308173 | es |
dc.identifier.doi | 10.1016/j.jelechem.2019.113549 | - |
Aparece en las colecciones: | Artículos: Química Física |
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J Electroanal Chem 854 2019 113549.pdf | 1,09 MB | Adobe PDF | Visualizar/Abrir |
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