Adsorption and Alloy Formation of Zinc Layers on Silver

The deposition of Zn on Ag from alkaline zincate solutions has been investigated using cyclic voltammetry, potential pulse methods, X-ray diffraction and scanning electron microscopy. Approximately one monolayer of Zn is formed in the underpotential deposition region prior to bulk deposition. The un...

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Bibliographic Details
Published in:Journal of the Electrochemical Society 1981-08, Vol.128 (8), p.1691-1697
Main Authors: Adzic, G., McBreen, J., Chu, M. G.
Format: Article
Language:English
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Summary:The deposition of Zn on Ag from alkaline zincate solutions has been investigated using cyclic voltammetry, potential pulse methods, X-ray diffraction and scanning electron microscopy. Approximately one monolayer of Zn is formed in the underpotential deposition region prior to bulk deposition. The underpotential shift ( Delta E sub p ) is 0.15 V. Zinc forms at least two alloys with the substrate. One was identified as AgZn sub 3 , the other as the beta ' phase of AgZn. The bulk Zn deposit consists of hexagonal platelets that are oriented both parallel and perpendicular to the basal plane. 17 ref.--AA
ISSN:0013-4651
1945-7111
DOI:10.1149/1.2127712