Yu. M. Maksimovz, A. V. Smolin, and B. I. Podlovchenko
Department of Chemistry, Moscow State University, Vorob’evy gory 1, building 3, GSP-2, Moscow, 119992 Russia
Received December 01, 2006
Abstract—The surface layer dissolution on certain palladium deposits (Pd/Pt) and smooth polycrystalline Pd
in sulfuric acid solutions is quantitatively studied at anodic linear potential sweep using atomic absorption anal-
ysis. The strong effect of the conditions of Pd/Pt electrolytic generation on the processes of palladium dissolu-
tion and oxygen adsorption is shown. The scanning electron microscopy method is used to trace the relationship
between the synthesis conditions and the palladium deposit morphology. It is shown that palladium dissolution
in the course of the anodic potential sweep is the most active for deposits with the highest specific surfaces. At
the oxygen adsorption potentials, the charge value consumed in Pd dissolution decreases as the potential sweep
rate increases.
Key words: dissolution, oxygen adsorption, electrolytic palladium deposits, smooth polycrystalline palladium
DOI: 10.1134/S1023193507120129
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