Journal article

Determination of standard electrochemical rate constants from semi-circular sweep voltammetry: a combined theoretical and experimental study

Abstract:: Semi-circular potential sweep voltammetry has recently been proposed as a sensitive method to estimate electrochemical rate constants [J. Electroanal. Chem., 835 (2019) 60–66]. Herein, this approach is experimentally verified using microdisc electrode voltammetry. The reduction of hexaamineruthenium (III) chloride and the oxidation of ferrocenemethanol, both in aqueous solution, at carbon electrodes were studied. The rate constants obtained from semi-circular voltammetry for both investigated redox systems are in agreement with independent values obtained from the conventional Nicholson method at macroelectrodes. The method compares favourably in terms of simplicity and speed as it requires recording only a single voltammogram. This approach provides a novel, fast complementary method for the evaluation of the standard electrochemical rate constant.

Publication status:: Published

Peer review status:: Peer reviewed

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APA Style

Amin, H. M. A., Uchida, Y., Kätelhön, E., & Compton, R. G. (2020). Determination of standard electrochemical rate constants from semi-circular sweep voltammetry: a combined theoretical and experimental study. Journal of Electroanalytical Chemistry, 880(1 January 2021).

MLA Style

Amin, H. MA, et al. “Determination of Standard Electrochemical Rate Constants from Semi-Circular Sweep Voltammetry: a Combined Theoretical and Experimental Study.” Journal of Electroanalytical Chemistry, vol. 880, no. 1 January 2021, Elsevier, 2020.

Chicago Style

Amin, HMA, Y Uchida, E Kätelhön, and RG Compton. 2020. “Determination of Standard Electrochemical Rate Constants from Semi-Circular Sweep Voltammetry: a Combined Theoretical and Experimental Study.” Journal of Electroanalytical Chemistry 880 (1 January 2021).
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Publisher copy:: 10.1016/j.jelechem.2020.114891

Authors

+ Amin, HMA More by this author

Institution:: University of Oxford
Division:: MPLS
Department:: Chemistry
Sub department:: Physical & Theoretical Chem
Role:: Author

+ Uchida, Y More by this author

Institution:: University of Oxford
Division:: MPLS
Department:: Chemistry
Sub department:: Physical & Theoretical Chem
Role:: Author

+ Kätelhön, E More by this author

Institution:: University of Oxford
Division:: MPLS
Department:: Chemistry
Sub department:: Physical & Theoretical Chem
Role:: Author

+ Compton, RG More by this author

Institution:: University of Oxford
Department:: CHEMISTRY
Sub department:: Physical & Theoretical Chem
Role:: Author

Publisher:: Elsevier
Journal:: Journal of Electroanalytical Chemistry More from this journal
Volume:: 880
Issue:: 1 January 2021
Article number:: 114891
Publication date:: 2020-11-28
Acceptance date:: 2020-11-25
DOI:: 10.1016/j.jelechem.2020.114891
ISSN:: 1572-6657

Language:: English
Keywords:: FFR
Pubs id:: 1150676
Local pid:: pubs:1150676
Deposit date:: 2021-02-22

Terms of use

Copyright holder:: Elsevier
Copyright date:: 2021
Rights statement:: © 2020 Elsevier B.V. All rights reserved.
Notes:: This is the accepted manuscript version of the article. The final version is available online from Elsevier at: https://doi.org/10.1016/j.jelechem.2020.114891

Licence:: Terms and Conditions of Use for Oxford University Research Archive

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