Reverse Pulse Voltammetry at spherical electrodes: Simultaneous determination of diffusion coefficients and formal potentials. Application to Room Temperature Ionic Liquids

E. Laborda; F. Martínez-Ortiz; A. Molina; E.I. Rogers; J.G. Limon-Petersen; N.V. Rees; R.G. Compton

doi:10.1016/j.jelechem.2009.06.022

Reverse Pulse Voltammetry at spherical electrodes: Simultaneous determination of diffusion coefficients and formal potentials. Application to Room Temperature Ionic Liquids

E. Laborda, F. Martínez-Ortiz, A. Molina, E.I. Rogers, J.G. Limon-Petersen, N.V. Rees, R.G. Compton

Chemical Engineering

Research output: Contribution to journal › Article › peer-review

16 Citations (Scopus)

Abstract

A rigorous analytical solution for Reverse Pulse Voltammetry (RPV) at spherical electrodes of all sizes is presented, including the case where the diffusion coefficients of the electroactive species are different. From this solution, the value of RPV for the determination of both diffusion coefficients and the formal potential of the redox couple is demonstrated. The experimental application of the theoretical results is carried out both in ionic liquids and in aqueous solution with mercury microelectrodes of ca. 50 and 10 μm diameters. The former solvent system is of particular interest due to the great importance of these new liquids in which notably unequal diffusion coefficients are commonly found.

Original language	English
Pages (from-to)	1-10
Number of pages	10
Journal	Journal of Electroanalytical Chemistry
Volume	634
Issue number	1
DOIs	https://doi.org/10.1016/j.jelechem.2009.06.022
Publication status	Published - 1 Sept 2009

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10.1016/j.jelechem.2009.06.022

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Laborda, E., Martínez-Ortiz, F., Molina, A., Rogers, E. I., Limon-Petersen, J. G., Rees, N. V., & Compton, R. G. (2009). Reverse Pulse Voltammetry at spherical electrodes: Simultaneous determination of diffusion coefficients and formal potentials. Application to Room Temperature Ionic Liquids. Journal of Electroanalytical Chemistry, 634(1), 1-10. https://doi.org/10.1016/j.jelechem.2009.06.022

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title = "Reverse Pulse Voltammetry at spherical electrodes: Simultaneous determination of diffusion coefficients and formal potentials. Application to Room Temperature Ionic Liquids",

abstract = "A rigorous analytical solution for Reverse Pulse Voltammetry (RPV) at spherical electrodes of all sizes is presented, including the case where the diffusion coefficients of the electroactive species are different. From this solution, the value of RPV for the determination of both diffusion coefficients and the formal potential of the redox couple is demonstrated. The experimental application of the theoretical results is carried out both in ionic liquids and in aqueous solution with mercury microelectrodes of ca. 50 and 10 μm diameters. The former solvent system is of particular interest due to the great importance of these new liquids in which notably unequal diffusion coefficients are commonly found.",

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Laborda, E, Martínez-Ortiz, F, Molina, A, Rogers, EI, Limon-Petersen, JG, Rees, NV & Compton, RG 2009, 'Reverse Pulse Voltammetry at spherical electrodes: Simultaneous determination of diffusion coefficients and formal potentials. Application to Room Temperature Ionic Liquids', Journal of Electroanalytical Chemistry, vol. 634, no. 1, pp. 1-10. https://doi.org/10.1016/j.jelechem.2009.06.022

Reverse Pulse Voltammetry at spherical electrodes: Simultaneous determination of diffusion coefficients and formal potentials. Application to Room Temperature Ionic Liquids. / Laborda, E.; Martínez-Ortiz, F.; Molina, A. et al.
In: Journal of Electroanalytical Chemistry, Vol. 634, No. 1, 01.09.2009, p. 1-10.

Research output: Contribution to journal › Article › peer-review

TY - JOUR

T1 - Reverse Pulse Voltammetry at spherical electrodes

T2 - Simultaneous determination of diffusion coefficients and formal potentials. Application to Room Temperature Ionic Liquids

AU - Laborda, E.

AU - Martínez-Ortiz, F.

AU - Molina, A.

AU - Rogers, E.I.

AU - Limon-Petersen, J.G.

AU - Rees, N.V.

AU - Compton, R.G.

PY - 2009/9/1

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AB - A rigorous analytical solution for Reverse Pulse Voltammetry (RPV) at spherical electrodes of all sizes is presented, including the case where the diffusion coefficients of the electroactive species are different. From this solution, the value of RPV for the determination of both diffusion coefficients and the formal potential of the redox couple is demonstrated. The experimental application of the theoretical results is carried out both in ionic liquids and in aqueous solution with mercury microelectrodes of ca. 50 and 10 μm diameters. The former solvent system is of particular interest due to the great importance of these new liquids in which notably unequal diffusion coefficients are commonly found.

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Reverse Pulse Voltammetry at spherical electrodes: Simultaneous determination of diffusion coefficients and formal potentials. Application to Room Temperature Ionic Liquids

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