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The effect of hydrogen sorbed by iron on anodic dissolution of metal in sulfate electrolytes

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Abstract

The mechanism of anodic dissolution of hydrogenated iron in sulfate electrolyte (pH 5.5) is studied with the use of electrochemical impedance spectroscopy in combination with bipolar membrane electrode. Based on comparison of rate constants of elementary stages of the anodic process in acidic (pH 1.3) and weakly acidic (pH 5.5) sulfate electrolytes, the reaction scheme of active dissolution of iron is made more accurate.

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Authors and Affiliations

  1. Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Leninskii pr. 31, Moscow, 119071, Russia

    A. A. Rybkina, M. A. Maleeva & A. I. Marshakov

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  1. A. A. Rybkina
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  2. M. A. Maleeva
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  3. A. I. Marshakov
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Correspondence to A. A. Rybkina.

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Original Russian Text © A.A. Rybkina, M.A. Maleeva, A.I. Marshakov, 2012, published in Korroziya: Materialy, Zashchita, 2012, No. 1, pp. 7–12.

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Rybkina, A.A., Maleeva, M.A. & Marshakov, A.I. The effect of hydrogen sorbed by iron on anodic dissolution of metal in sulfate electrolytes. Prot Met Phys Chem Surf 49, 805–810 (2013). https://doi.org/10.1134/S2070205113070149

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  • DOI: https://doi.org/10.1134/S2070205113070149

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