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MHD Supported Electroreduction of Formate Nickel Complexes with Simultaneous Incorporation of TiO2 Particles

Mech K.

Archives of Metallurgy and Materials

2020

Vol. 65, iss. 1

219--227

The present work concerns analysis of the possibilities of synthesis of Ni-TiO2 composite coatings from electrolytes containing formate nickel complexes. A magnetic field was applied as an additional factor enabling modification of properties of the synthesized coatings through its influence on electrode processes. The presented data describes the effect of electrode potential, TiO2 concentration in the electrolyte as well as the value of the magnetic field induction vector on the deposition rate, composition, current efficiency, structure, surface states and morphology of synthesized coatings. The studies were preceded by thermodynamic analysis of the electrolyte. The obtained results indicated possibilities of synthesis of composites containing up to 0.97wt.% of TiO2. Depending on applied electrolysis conditions current efficiency amounted to from 61.2 to 75.1%.