Cyclic and Square-Wave Voltammetry at Diffusionally Asymmetric Microscopic and Nanoscopic Liquid-Liquid Interfaces: A Simple Theoretical Approach

The theoretical modeling of reversible ion transfers across liquid-liquid interfaces supported at micro/nanocapillaries is developed by means of a simple, approximate analytical approach. A very simple analytical solution is obtained for any multipulse technique and applied to the case of the two mo...

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Main Authors: Molina, A, Laborda, E, Compton, R
Format: Journal article
Published: 2014
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author Molina, A
Laborda, E
Compton, R
author_facet Molina, A
Laborda, E
Compton, R
author_sort Molina, A
collection OXFORD
description The theoretical modeling of reversible ion transfers across liquid-liquid interfaces supported at micro/nanocapillaries is developed by means of a simple, approximate analytical approach. A very simple analytical solution is obtained for any multipulse technique and applied to the case of the two most widely used voltammetric techniques: cyclic and square-wave voltammetries. The analytical results fully describe the shape and position of the voltammograms as well as the effect of the key variables of the system: capillary size, time scale of the experiment, and ion diffusion coefficients and bulk concentrations. Their influence is analyzed and quantified with simple equations that immediately enable the determination of the ion-transfer formal potential. © 2014 American Chemical Society.
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spelling oxford-uuid:2f4eb77c-9452-4937-a525-54045e2a6b412022-03-26T12:54:31ZCyclic and Square-Wave Voltammetry at Diffusionally Asymmetric Microscopic and Nanoscopic Liquid-Liquid Interfaces: A Simple Theoretical ApproachJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:2f4eb77c-9452-4937-a525-54045e2a6b41Symplectic Elements at Oxford2014Molina, ALaborda, ECompton, RThe theoretical modeling of reversible ion transfers across liquid-liquid interfaces supported at micro/nanocapillaries is developed by means of a simple, approximate analytical approach. A very simple analytical solution is obtained for any multipulse technique and applied to the case of the two most widely used voltammetric techniques: cyclic and square-wave voltammetries. The analytical results fully describe the shape and position of the voltammograms as well as the effect of the key variables of the system: capillary size, time scale of the experiment, and ion diffusion coefficients and bulk concentrations. Their influence is analyzed and quantified with simple equations that immediately enable the determination of the ion-transfer formal potential. © 2014 American Chemical Society.
spellingShingle Molina, A
Laborda, E
Compton, R
Cyclic and Square-Wave Voltammetry at Diffusionally Asymmetric Microscopic and Nanoscopic Liquid-Liquid Interfaces: A Simple Theoretical Approach
title Cyclic and Square-Wave Voltammetry at Diffusionally Asymmetric Microscopic and Nanoscopic Liquid-Liquid Interfaces: A Simple Theoretical Approach
title_full Cyclic and Square-Wave Voltammetry at Diffusionally Asymmetric Microscopic and Nanoscopic Liquid-Liquid Interfaces: A Simple Theoretical Approach
title_fullStr Cyclic and Square-Wave Voltammetry at Diffusionally Asymmetric Microscopic and Nanoscopic Liquid-Liquid Interfaces: A Simple Theoretical Approach
title_full_unstemmed Cyclic and Square-Wave Voltammetry at Diffusionally Asymmetric Microscopic and Nanoscopic Liquid-Liquid Interfaces: A Simple Theoretical Approach
title_short Cyclic and Square-Wave Voltammetry at Diffusionally Asymmetric Microscopic and Nanoscopic Liquid-Liquid Interfaces: A Simple Theoretical Approach
title_sort cyclic and square wave voltammetry at diffusionally asymmetric microscopic and nanoscopic liquid liquid interfaces a simple theoretical approach
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AT labordae cyclicandsquarewavevoltammetryatdiffusionallyasymmetricmicroscopicandnanoscopicliquidliquidinterfacesasimpletheoreticalapproach
AT comptonr cyclicandsquarewavevoltammetryatdiffusionallyasymmetricmicroscopicandnanoscopicliquidliquidinterfacesasimpletheoreticalapproach