EFFECT OF PULSATING ELECTROLYSIS PARAMETERS ON THE MORPHOLOGY AND STRUCTURE OF PD-AG POWDER

Results are reported from a kinetic study of single and joint depositi on of Pd and Ag, and of the morphology, structure and chemical composi tion of Pd-Ag powders deposited from aminonitrite electrolyte under po tentiostatic and pulsating square-wave overpotential. It was establish ed that the Pd content in the powder reaches 50% with increase in the overpotential amplitude and the pulse/pause ratio. The same conditions are required for the deposition of finely divided powders. The form o f the Pd-Ag powder is dendritic, but it is less branched compared to t hat obtained under steady potentiostatic conditions.