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The kinetics of electroreduction of zinc sulfate electrolyte in the presence of additives of surfactants

Abstract

The kinetics of electroreduction of zinc sulfate electrolyte in the presence of additives of surfactants

I.V. Minin, N.D. Solovyeva

Incoming article date: 05.05.2013

The kinetics of the electrodeposition of zinc to the steel base of the sulfate electrolyte supplements with synthetic surfactants was studied. Found that at potentials more positive than the equilibrium value the process of pre phase zinc deposition. Additives synthesized organic compounds adsorbed to the surface of the electrode at its cathodic polarization, increasing of overvoltage process. The adsorption is in the range of 0,5•10-7 to 2,6•10-5 mol/сm2.

Keywords: zinc, electrolyte, electrode, surface-active agents (surfactants), electrodeposition, adsorption, diffusion coefficient, and pre phase deposition