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Oxygen Reduction on Amalgamated Platinum Electrodes Coated with Monolayers of Cetyl Alcohol and Stearic Acid

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Abstract

Oxygen reduction on an amalgamated platinum electrode with a monolayer of cetyl alcohol or stearic acid is studied. It is shown that the process proceeds inside the monolayer, most probably, at a certain distance from the metal; an electron is transferred to the reagent by the “superexchange” mechanism. The process characteristics depend on competition between several factors: the electron transfer distance, the potential drop between the electrode and the reagent in a given site in the monolayer, and the hydrogen ion concentration distribution across the film. The penetration of H+ inside the film appears to be responsive to the monolayer structure.

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Authors and Affiliations

  1. Frumkin Institute of Electrochemistry, Russian Academy of Sciences, Leninskii pr. 31, Moscow, 119071, Russia

    L. A. Khanova

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  1. L. A. Khanova
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Khanova, L.A. Oxygen Reduction on Amalgamated Platinum Electrodes Coated with Monolayers of Cetyl Alcohol and Stearic Acid. Russian Journal of Electrochemistry 39, 1099–1103 (2003). https://doi.org/10.1023/A:1026127605111

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  • DOI: https://doi.org/10.1023/A:1026127605111

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