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Effect of diphenylamine adsorption on the kinetics of catalytic evolution of hydrogen

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Bulletin of the Academy of Sciences of the USSR, Division of chemical science Aims and scope

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Summary

  1. 1.

    The catalytic hydrogen liberation current produced by diphenylamine comes from adsorption of this catalyst.

  2. 2.

    A bend in the polarographic curve of catalytic hydrogen evolution is observed at potentials where a considereble part of the diphenylamine Bas already been desorbed.

  3. 3.

    At high hydrogen ion concentrations and not very large current densities, the catalytic hyrogen evolution rate in the presence of diphenylamine is limited by the discharge rate of the diphenylammcnium canon. At small hydrogen ion concentrations and large current densities, the reaction rate is limited by the surface protonation rate.

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Authors and Affiliations

  1. Institute of Electrochemistry, Academy of Sciences, USSR

    G. A. Tedoradze & D. I. Dzhaparidze

Authors
  1. G. A. Tedoradze
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  2. D. I. Dzhaparidze
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Tedoradze, G.A., Dzhaparidze, D.I. Effect of diphenylamine adsorption on the kinetics of catalytic evolution of hydrogen. Russ Chem Bull 12, 362–366 (1963). https://doi.org/10.1007/BF00844383

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  • DOI: https://doi.org/10.1007/BF00844383

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