A study on the kinetics of the electrodeposition of Ni, Co and Ni-Co alloy in citrate electrolyte part 1. The kinetic study of the independent electrodeposition of Ni and Co

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creativework.keywordsChronoamperometry, Cyclic chronovoltammetry, Electrodeposition kinetic, Initial stages of nucleation, Nuclei growth
creativework.publisherUniversity of Chemical Technology and Metallurgyjournal@uctm.eduen
dc.contributor.authorIgnatova K.
dc.contributor.authorLilova D.
dc.date.accessioned2024-07-16T11:16:46Z
dc.date.accessioned2024-07-16T11:18:02Z
dc.date.available2024-07-16T11:16:46Z
dc.date.available2024-07-16T11:18:02Z
dc.date.issued2015-01-01
dc.description.abstractThe elecrodeposition of Ni and Co was studied by electrochemical techniques in varying compositions of slightly acidic citrate electrolyte. Cyclic voltammetry and current transient measurements were used to characterize the initial stages of nucleation, growth mechanism and electrodeposition of Ni and Co. The voltammetry analysis showed that the electrodeposition of both Ni and Co occurs under diffusion-kinetic control associated with a typical nucleation process. The deposition of Ni is in one act of charge transfer with exchange of two electrons, the deposition of Co is a two-stage process of reduction of free cobalt ions to cobalt, and reduction of complex ions type CoCit- to cobalt. The application of the method of chronoammetry proved that for cobalt the mechanism of nucleation is spontaneous, with three-dimensional nucleation and nuclei growth, while for nickel the slower progressive mechanism of nucleation is typical. The differences in the deposition mechanisms of the two metals is a possible explanation for their anomalous co-deposition in the electrolyte examined.
dc.identifier.issn1314-7978
dc.identifier.issn1314-7471
dc.identifier.scopusSCOPUS_ID:84925272288en
dc.identifier.urihttps://rlib.uctm.edu/handle/123456789/1089
dc.language.isoen
dc.source.urihttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84925272288&origin=inward
dc.titleA study on the kinetics of the electrodeposition of Ni, Co and Ni-Co alloy in citrate electrolyte part 1. The kinetic study of the independent electrodeposition of Ni and Co
dc.typeArticle
oaire.citation.issue2
oaire.citation.volume50
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