Cobalt electrodeposition on a gold electrode from bitartrate based electrolytic baths
Abstract
In the present work we carried out a voltammetric study of the cobalt electrodeposition process of cobalt onto a gold substrate from a bitartrate-based electrolyte bath with a composition of CoCl2 0.01 M + KC4H5O6 0.05 M. The results indicate that, from the system studied, cobalt can be electrodeposited in the potential range located between -0.5 to -0.9 V. The behaviour of the peak current vs. the scan rate1/2 suggests a diffusion controlled process, where the value of the diffusion coefficient is 8.2x10-8 cm2 s-1.
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