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Effect of absorbed hydrogen on the iron dissolution

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Abstract

The rate of the anodic dissolution of iron in acid sulfate electrolytes is reduced by hydrogen absorbed in the metal. The dependence of the degree of retardation of the anodic process on the concentration of hydrogen atoms in the near-surface layer of the metal is obtained. The difference in the effect the adsorbed and absorbed forms of hydrogen exert on the iron dissolution rate is noted. At a certain content of absorbed hydrogen, the current efficiency for dissolved iron exceeds 100%, and the weight loss of the hydrogen-charged metal is maximum under the conditions of its anodic polarization.

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Authors and Affiliations

  1. Institute of Physical Chemistry, Russian Academy of Sciences, Leninskii pr. 31, 117915, Moscow, Russia

    A. I. Marshakov, A. A. Rybkina & Ya. B. Skuratnik

  2. Russian Federation Scientific Center “Karpov Research Institute of Physical Chemistry,”, ul. Vorontsovo pole 10, 103064, Moscow, Russia

    Ya. B. Skuratnik

Authors
  1. A. I. Marshakov
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  2. A. A. Rybkina
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  3. Ya. B. Skuratnik
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Dedicated to the ninetieth anniversary of Ya.M. Kolotyrkin’s birth.

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Marshakov, A.I., Rybkina, A.A. & Skuratnik, Y.B. Effect of absorbed hydrogen on the iron dissolution. Russ J Electrochem 36, 1101–1107 (2000). https://doi.org/10.1007/BF02757529

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  • DOI: https://doi.org/10.1007/BF02757529

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