To the Tafel Slopes at the Anodic Dissolution of Iron in Sulfuric Electrolytes

Yu. P. Vishnevskaya, D. A. Tkalenko, M. V. Byk, and V. A. Rupp

National Technical University of Ukraine (KPI), pr. Pobedy 37, Kiev-56, 03056 Ukraine

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Received March 21, 2007

Abstract — Based on the hypothesis of the reversibility of an iron electrode, one can relatively easily explain the experimentally obtained Tafel slopes without multistage complex schemes involving hypothetic intermediate iron hydroxo compounds. On the other hand, the coincidence of the experimental slope with the slope following from the relation derived may be considered as a proof of the reversibility of the iron electrode. The Tafel slope is reproducible both on the clean and partially passivated iron surface.