Electrolytic palladium deposits: Dependence of adsorption properties and texture on the deposition potential

Specific features of the copper and oxygen adsorption on electrolytic palla dium deposits obtained from chloride solutions at different deposition pote ntials are considered. It is shown that, in sulfuric acid solutions, the pa lladium dissolution, which accompanies the oxygen adsorption, obscures the adsorption behavior of the deposits with respect to oxygen. Assumptions are made about the predominant crystallographic orientation (100) of the surfa ce of some palladium deposits being dependent on the deposition potential a nd about the presence of regions whose adsorption properties are anomalous with respect to copper. The assumptions are based on a comparative analysis of the copper adsorption data and X-ray diffraction patterns. In addition to sites of crystalline palladium, the deposits are found to have disordere d areas as well.