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Redox reactions of dissolved substances on amalgamated platinum electrode modified with adsorbed porphyrin

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Abstract

In order to develop the electrodes convenient for investigating the high-rate redox reactions not distorted by a reagent adsorption, the modification of amalgamated Pt electrodes with a monolayer of irreversibly adsorbed porphyrin is studied. A specific feature of applied procedure is that the adsorption was performed at a controlled electrode potential from the aqueous solution, in which porphyrin in a low concentration was solubilized. The adsorbed porphyrin monolayer prevents immediate contact of dissolved reagent with the metal. At the same time, due to a strong electronic interaction of the system of conjugate π-electrons with the metal, the monolayer does not hamper the electronic transfer between the reagent and the electrode.

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Authors and Affiliations

  1. Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Leninskii pr. 31, Moscow, 119991, Russia

    L. A. Khanova

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  1. L. A. Khanova
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Correspondence to L. A. Khanova.

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Original Russian Text © L.A. Khanova, 2009, published in Elektrokhimiya, 2009, Vol. 45, No. 10, pp. 1301–1306.

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Khanova, L.A. Redox reactions of dissolved substances on amalgamated platinum electrode modified with adsorbed porphyrin. Russ J Electrochem 45, 1206–1210 (2009). https://doi.org/10.1134/S1023193509100164

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  • DOI: https://doi.org/10.1134/S1023193509100164

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