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The electrodeposition of copper from alkaline cyanide solution—I: The effect of trace selenide

✍ Scribed by G.T. Rogers; K.J. Taylor

Publisher
Elsevier Science
Year
1975
Tongue
English
Weight
441 KB
Volume
20
Category
Article
ISSN
0013-4686

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✦ Synopsis

The kinetics of copper electrodeposition from alkaline cyanide solutions have been studied using a rotating disc electrode technique .

Copper is deposited by two routes in parallel One has an electrochemical rate determining step, the rate of the second is probably determined by a chemical step . The chemical route is strongly inhibited by the "free cyanide" concentration and may proceed via adsorbed Cu(CN) . The electrochemical route is catalysed by the selenide ion, The existence of these two kinetically different deposition routes means that the deposit can smooth, roughen or reproduce an original surface profile depending on deposition conditions . The conditions required for each type of behaviour arc discussed .

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