Electron exchange between two electrodes mediated by two electroactive adsorbates
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Updated: Jul 22, 2026

Electrochemical Roughening of Thin-Film Platinum Macro and Microelectrodes
Published on: June 30, 2019
W Schmickler1, Maria Anita Rampi, E Tran
1Abteilung Elektrochemie, University of Ulm, D-89069 Ulm, Germany.
Abstract:
Experimental data for electron exchange between two electrodes covered by electroactive films are presented and discussed in terms of the Gerischer model. A model Hamiltonian is proposed for such indirect electron exchange involving two intermediate species. Explicit model calculations are performed for the case in which the coupling between the two adsorbates is weak and determines the overall rate. The calculations agree well with the experimental data, and can be used to determine the energy of reorganization associated with the electron transfer.
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