Effect of absorbed hydrogen on the iron dissolution |
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| Authors: | A I Marshakov A A Rybkina Ya B Skuratnik |
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| Institution: | (1) Institute of Physical Chemistry, Russian Academy of Sciences, Leninskii pr. 31, 117915 Moscow, Russia;(2) Russian Federation Scientific Center “Karpov Research Institute of Physical Chemistry,”, ul. Vorontsovo pole 10, 103064 Moscow, Russia |
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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.
Dedicated to the ninetieth anniversary of Ya.M. Kolotyrkin’s birth. |
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