Hydrodynamic modeling of electrocodeposition on a rotating cylinder electrode. Part 4. The kinetics of the process of nanoparticles adsorption

A. V. Vakhruchev^ab, E. K. Molchanov<sup>b

a</sup> Kalashnikov Izhevsk State Technical University, Izhevsk, Russia
^b Institute of Mechanics, Ural Branch of the Russian Academy of Sciences, Izhevsk, Russia

Abstract: The results of hydrodynamic mathematical modeling of Cu-Al₂O₃ nanoparticles electrocodeposition on rotating cylinder electrode of are presented. Mass transfer of electrolyte ions is described by diffusion-convection equation. Reynolds-averaged Navier-Stokes equation with Low Reynolds k-e model is used to describe turbulent flow of electrolyte. The cathodic and anodic processes are described based on the tertiary current distribution. It was found that the sign of the zeta potential of nanoparticles has a decisive influence on the possibility of forming the composite coatings. The results of mathematical modeling are in good agreement with the experimental data.

Keywords: adsorption, zeta-potential, nanoparticles, electrodeposition.

UDC: 519.622.2:544.654.2