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Electrocatalytic activity of platinum—polyaniline and palladium—polyaniline systems obtained by cycling the electrode potential

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Abstract

Steady-state current densities of electrooxidation of CH3OH, HCOOH, and CO at the Pt-PAN-GC electrodes (where PAN and GC stand for polyaniline and glassy carbon, respectively) and those of electrooxidation of HCOOH at the Pd-PAN-GC electrodes are measured (per cm2 of the true metal-catalyst surface area). The found higher activity of Pt and Pd particles incorporated in PAN, as compared with Pt/Pt and Pd/Pt, is attributed to interaction between metal-catalyst particles and the polymeric matrix. The activation effect is the most pronounced for the HCOOH electrooxidation at Pd-PAN-GC. The data concerning hydrogen evolution testify in favor of a decrease in exchange currents of this reaction upon going from Pt to Pt-PAN-GC electrodes

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Authors and Affiliations

  1. Moscow State University, Vorob’evy gory, 119899, Moscow, Russia

    B. I. Podlovchenko, Yu. M. Maksimov, T. D. Gladysheva & E. A. Kolyadko

Authors
  1. B. I. Podlovchenko
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  2. Yu. M. Maksimov
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  3. T. D. Gladysheva
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  4. E. A. Kolyadko
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Podlovchenko, B.I., Maksimov, Y.M., Gladysheva, T.D. et al. Electrocatalytic activity of platinum—polyaniline and palladium—polyaniline systems obtained by cycling the electrode potential. Russ J Electrochem 36, 731–735 (2000). https://doi.org/10.1007/BF02757672

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  • DOI: https://doi.org/10.1007/BF02757672

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