B. Karagianni, I. Tsangaraki-Kaplanoglou
1996
Citations
0
Influential Citations
1
Citations
Journal
Plating and Surface Finishing
Abstract
In this study, an attempt was made to investigate the mechanism of the action of piperidine-4-carboxylic acid in comparison with piperidine-3-carboxylic acid during a-c electrolytic coloring of anodized aluminum in nickel sulfate-boric acid solution. Electrochemical impedance spectroscopy (EIS) data were used, as well as some other electrochemical techniques. Conformations of the additives that influence action between the opposite charges seem to play a significant role. They are correlated with the ability of the additive to be adsorbed on the electrode surface despite the alternating current, to interfere in the re-anodizing process, and in the nickel deposition rate and distribution.