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Deposition of Palladium on Platinum in Hydrochloric Acid Media
Author(s) -
Szabó S.,
Nagy F.
Publication year - 1979
Publication title -
israel journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.908
H-Index - 54
eISSN - 1869-5868
pISSN - 0021-2148
DOI - 10.1002/ijch.197900020
Subject(s) - chemistry , palladium , platinum , adsorption , valency , hydrogen , inorganic chemistry , metal , hydrochloric acid , desorption , deposition (geology) , layer (electronics) , catalysis , organic chemistry , paleontology , philosophy , linguistics , sediment , biology
Abstract Palladium adsorbed on platinum has been shown to decrease the amount of adsorbed hydrogen because the site requirement of Pd ads is about 1.5 times higher than that of adsorbed hydrogen. Metal adsorption via the ionization of adsorbed hydrogen occurs in two steps: the first leading to bulk deposition. This is followed by bulk ionization and repeated reduction, producing the adsorbed metal layer. The electrosorption valency of the adsorbed Pd layer thus formed is about 1.8. The Pd ads does not desorb in Cl − ‐free media.