Electrical cross-talk in rotating ring–disk experiments

Vesztergom, Soma; Barankai, N.; Kovács, N.; Ujvári, M.; Broekmann, Peter; Siegenthaler, Hans; Láng, G.G. (2016). Electrical cross-talk in rotating ring–disk experiments. Electrochemistry communications, 68, pp. 54-58. Elsevier 10.1016/j.elecom.2016.04.012

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The electrical cross-talk between the two working electrodes of generator/collector systems is investigated. Digital simulations are carried out to model simple collection experiments with a rotating ring–disk electrode (RRDE) immersed into a finite resistance solution of a redox couple, where electrical cross-talk may arise due to the shared current routes of the two working electrodes. Based on the analysis of the Kirchhoff (Laplace) matrix of the simulation mesh it is demonstrated that the cross-talk effect is heavily influenced by the selection of the reference point for potential measurements; in practice this is the position of the reference electrode or the tip of the Luggin probe. The devised model is validated by means of a simple and demonstrative experiment.

Item Type:

Journal Article (Original Article)

Division/Institute:

08 Faculty of Science > Departement of Chemistry and Biochemistry
08 Faculty of Science > Other Institutions > Emeriti, Faculty of Science
08 Faculty of Science > Other Institutions > Teaching Staff, Faculty of Science

UniBE Contributor:

Vesztergom, Soma; Broekmann, Peter and Siegenthaler, Hans

Subjects:

500 Science > 570 Life sciences; biology
500 Science > 540 Chemistry
500 Science

ISSN:

1388-2481

Publisher:

Elsevier

Language:

English

Submitter:

Beatrice Niederhauser

Date Deposited:

24 Jan 2017 10:43

Last Modified:

24 Jan 2017 10:43

Publisher DOI:

10.1016/j.elecom.2016.04.012

BORIS DOI:

10.7892/boris.92721

URI:

https://boris.unibe.ch/id/eprint/92721

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