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The Effect of Atomic Hydrogen on the Anodic Dissolution of Iron in a Sulfate Electrolyte Studied wit |
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24.11.2008 г. |
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The Effect of Atomic Hydrogen on the Anodic Dissolution of Iron in a Sulfate Electrolyte Studied with Impedance Spectroscopy M. A. Maleeva, A. A. Rybkina, A. I. Marshakov, and V. V. Elkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Leninskii pr. 31, Moscow, 119991 Russia E-mail:
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Received May 3, 2008 Abstract — Impedance spectra of an iron membrane electrode are recorded in a range of the active metal dissolution potentials in an acidic sulfate solution. The rate constants of the elementary adsorption stages of iron dissolution are found to decrease with an increase in the amount of atomic hydrogen. This results in a decrease in the metal surface coverage with intermediate particles of the anodic process. PACS numbers: 82.45.Qr DOI: 10.1134/S0033173208060039
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