Electrodeposition of a nickel coating from a low-temperature acetate-chloride nickel-plating electrolyte

The effect of the electrocrystallization conditions on the microstructure and growth direction of a nickel coating obtained from acetate-chloride nickel-plating electrolytes was considered. The distribution of the forms of complex ions in solution was evaluated using a mathematical model. The positi...

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Bibliographic Details
Published inRussian journal of electrochemistry Vol. 51; no. 3; pp. 281 - 285
Main Authors Antikhovich, I. V., Chernik, A. A., Zharskii, I. M., Bolvako, A. K.
Format Journal Article
LanguageEnglish
Published Moscow Pleiades Publishing 01.03.2015
Subjects
Chemistry
Chemistry and Materials Science
Electrochemistry
Physical Chemistry
Short Communications
nickel-plating
acetate electrolytes
kinetics
complexation
structure
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Summary:The effect of the electrocrystallization conditions on the microstructure and growth direction of a nickel coating obtained from acetate-chloride nickel-plating electrolytes was considered. The distribution of the forms of complex ions in solution was evaluated using a mathematical model. The positively charged species in the electrolyte amounted to 18–31%, which significantly affected the mass transfer. An increase in the concentration of acetate ions promoted the formation of Ni(CH 3 COO) + and Ni(CH 3 COO) 2 and decreased the content of free nickel ions in the electrolyte, leading to a decrease in polarization and shifting the polarization curves toward higher electropositive values. The structure of the coating is most strongly affected by variation of current density, but not of electrolyte composition.
ISSN:1023-1935
1608-3342
DOI:10.1134/S1023193515030027