Electrochemical determination of kinetic parameters of surface confined redox probes in presence of intermolecular interactions by means of Cyclic Voltammetry. Application to TEMPO monolayers in gold and platinum electrodes

González Sánchez, Joaquín; Sequí Castellano, Alfonso

Publication:
Electrochemical determination of kinetic parameters of surface confined redox probes in presence of intermolecular interactions by means of Cyclic Voltammetry. Application to TEMPO monolayers in gold and platinum electrodes

dc.contributor.author	González Sánchez, Joaquín
dc.contributor.author	Sequí Castellano, Alfonso
dc.contributor.department	Química Física
dc.date.accessioned	2025-01-20T11:12:01Z
dc.date.available	2025-01-20T11:12:01Z
dc.date.issued	2021-01-01
dc.description	© 2020 Elsevier Ltd. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/ This document is the Accepted Manuscript version of a Published Work that appeared in final form in Electrochimica Acta. To access the final edited and published work see https://doi.org/10.1016/j.electacta.2020.137331
dc.description.abstract	Application of Cyclic Voltammetry to the characterisation of redox kinetics of surface confined redox probes is usually based on the linear regression of the peak potentials versus the logarithm of the scan rate under fully irreversible redox conditions by following the well-known method due to E. Laviron. This method implicitly assumes the Butler-Volmer formalism under ideal conditions, a fact that, in spite of the broad use of this method, strongly restrict its applicability. Here, we propose a combination of the Marcus-Hush-Chidsey formalism and the presence of intermolecular interactions in order to extract kinetic information of the CV curves. Full-width at half-maximum (fwhm) and its correlation with the peak potentials reveals to be very useful to evaluate both kinetics and interactions influences with high sensitivity and accuracy. Experimental analysis of the CV curves of electroactive monolayers of the persistent radical TEMPO (2,2,6,6-tetramethylpiperidine-1-oxyl) directly attached to gold and platinum electrodes in two aprotic solvents (Ethanol and Propylene Carbonate) have been carried out.	es
dc.format	application/pdf	es
dc.format.extent	38	es
dc.identifier.citation	Electrochimica Acta, 2021, Vol. 365 : 137331
dc.identifier.doi	https://doi.org/10.1016/j.electacta.2020.137331
dc.identifier.issn	Print: 0013-4686
dc.identifier.uri	http://hdl.handle.net/10201/148789
dc.language	eng	es
dc.publisher	Elsevier	es
dc.relation	Fundacion SENECA de la Región de Murcia (Projecto 19887/GERM/15)	es
dc.relation.publisherversion	https://www.sciencedirect.com/science/article/pii/S0013468620317242	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	TEMPO	es
dc.subject	Cyclic voltammetry
dc.subject	Electroactive monolayer
dc.subject	Intermolecular interactions
dc.subject	Electrode kinetics
dc.subject	Marcus Hush formalism
dc.subject	Butler Volmer formalism
dc.subject.other	CDU::5 - Ciencias puras y naturales::54 - Química::544 - Química física	es
dc.title	Electrochemical determination of kinetic parameters of surface confined redox probes in presence of intermolecular interactions by means of Cyclic Voltammetry. Application to TEMPO monolayers in gold and platinum electrodes	es
dc.type	info:eu-repo/semantics/article	es
dspace.entity.type	Publication	es