Electrochemical and Surface Analytical Studies of Silver Deposits for Industrial Electroplating

Abstract:

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For silver plating, mainly silver cyanide solutions are used and this is extensively treated in the literature. Yet, in view of the growing concern for environmental problems, they will have to be replaced because of their toxic properties. In the present work, the appropriateness of thiosulphate ) O S ( 2 3 2 βˆ’ , a complexing agent for silver of common use in photographic applications, as an alternative for cyanide in electroplating baths is investigated. The kinetic characteristics of the reduction are determined, since they fix at which rate the plating can proceed. Prior to the kinetic study, requiring measurements in solutions of varying composition, the thermodynamic data on complex formation between Ag+ and βˆ’ 2 3 2O S ions are analysed. And finally, the composition and the morphology of the silver deposits are examined as a function of the plating conditions. Electrochemical and analytical physical techniques are used.

Info:

Periodical:

Materials Science Forum (Volumes 587-588)

Edited by:

António Torres Marques, António Fernando Silva, António Paulo Monteiro Baptista, Carlos Sá, Fernando Jorge Lino Alves, Luís Filipe Malheiros and Manuel Vieira

Pages:

829-833

DOI:

10.4028/www.scientific.net/MSF.587-588.829

Citation:

G. Anastassakis and C. A.C. Sequeira, "Electrochemical and Surface Analytical Studies of Silver Deposits for Industrial Electroplating", Materials Science Forum, Vols. 587-588, pp. 829-833, 2008

Online since:

June 2008

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$35.00

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