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Catalytic phenomena during the methanol oxidation at platinum electrodes in contact with solid polymer electrolytes

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Abstract

The methanol electrooxidation at platinum-gauze electrodes contacting a solid polymer electrolyte is studied in water and sulfuric-acid solutions by voltammetry in a broad potential range and by measuring steady-state currents and electrode coverages with chemisorbed species at low anodic potentials. The specific rate of the methanol oxidation in these systems is higher than that of similar platinum electrodes in liquid electrolytes. The catalytic action depends on the measurements conditions and the electrode potential. Reasons for catalytic effects at different potentials are discussed.

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Authors and Affiliations

  1. Frumkin Institute of Electrochemistry, Russian Academy of Sciences, Leninskii pr. 31, 117071, Moscow, Russia

    N. A. Maiorova, O. A. Khazova & V. S. Bagotzky

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  1. N. A. Maiorova
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  2. O. A. Khazova
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  3. V. S. Bagotzky
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Maiorova, N.A., Khazova, O.A. & Bagotzky, V.S. Catalytic phenomena during the methanol oxidation at platinum electrodes in contact with solid polymer electrolytes. Russ J Electrochem 36, 373–377 (2000). https://doi.org/10.1007/BF02756942

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  • DOI: https://doi.org/10.1007/BF02756942

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