Abstract
The problem of how the surface coverage of an indium electrode with chromium adatoms formed during the discharge of Cr(III) ions affects electrolytic evolution of hydrogen in alkaline solutions is studied using linear and cyclic voltametry. The method used permits stating that, in alkalinized media, the chromium deposition abruptly decelerates due to the formation of a hydroxide film on the electrode surface. Based on the results obtained, it is assumed that this film consists of mixed Cr(III)- and Cr(II)-containing hydroxo compounds (of the chromite type) and coadsorbed Crn clusters formed in the course of electrolysis.
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Translated from Elektrokhimiya, Vol. 41, No. 9, 2005, pp. 1027–1034.
Original Russian Text Copyright © 2005 by Korshunov, Safonov, Vykhodtseva.
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Korshunov, V.N., Safonov, V.A. & Vykhodtseva, L.N. Reduction of Triple-Charged Chromium Ions on Indium Cathode in Alkaline Sulfate Solutions. Russ J Electrochem 41, 911–918 (2005). https://doi.org/10.1007/s11175-005-0156-2
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DOI: https://doi.org/10.1007/s11175-005-0156-2