Representation of reversible current for arbitrary electrode geometries and arbitrary potential modulation

For simple electron transfer O+ n e − ⇄ R with equal diffusion coefficients ( D o = D R), it is shown that reversible current can be expressed in terms of diffusion-limited current for arbitrary cell/electrode geometries and arbitrary time-dependent potentials. This result provides a better understa...

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Bibliographic Details
Published in:Journal of electroanalytical chemistry and interfacial electrochemistry 1991-03, Vol.303 (1), p.1-15
Main Authors: Cope, Davis K., Tallman, Dennis E.
Format: Article
Language:English
Subjects:
Adsorption
Chemistry
Electrochemistry
Exact sciences and technology
General and physical chemistry
Study of interfaces
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Summary:For simple electron transfer O+ n e − ⇄ R with equal diffusion coefficients ( D o = D R), it is shown that reversible current can be expressed in terms of diffusion-limited current for arbitrary cell/electrode geometries and arbitrary time-dependent potentials. This result provides a better understanding of a formula due to Aoki and co-workers and suggests new experimental approaches which simplify interpretation of data obtained at microelectrodes.
ISSN:0022-0728
DOI:10.1016/0022-0728(91)85111-2