Electroplating of Catalytically Active Nickel Coatings from Baths of Various Anionic Compositions
O. V. Dolgikha, N. V. Sotskayaa, Vu Thi Duyena, E. A. Kotlyarovaa, and B. L. Agapova,b
a Voronezh State University, Universitetskaya pl. 1, Voronezh, 394006 Russia
b Voronezh State Technological Academy, pr. Revolyutsii 19, Voronezh, 394017 Russia
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Received November 6, 2008
Abstract — The effect of the nature of bath anions (Cl
, 
and CH3COO
) on the characteristics of the electrochemical plating of nickel coatings, namely, parameters of the cathodic polarization curves, bath stability, and current efficiency, as well as the composition and morphology of deposits and their catalytic activity in the anodic oxidation of hypophosphite ions and cathodic evolution of hydrogen, is studied. The anionic composition of the baths is found to substantially affect not only the kinetics of the deposit growth, but also the properties of the deposit. The differences observed are determined by the complex-forming and buffering properties of the anions.
, and CH3COO) on the characteristics of the electrochemical plating of nickel coatings, namely, parameters of the cathodic polarization curves, bath stability, and current efficiency, as well as the composition and morphology of deposits and their catalytic activity in the anodic oxidation of hypophosphite ions and cathodic evolution of hydrogen, is studied. The anionic composition of the baths is found to substantially affect not only the kinetics of the deposit growth, but also the properties of the deposit. The differences observed are determined by the complex-forming and buffering properties of the anions.
PACS numbers: 81.15.Pg
DOI: 10.1134/S2070205109060148