Polarization at ion exchange membrane/electrolyte solution interface. VI -Impedance spectroscopy in current controlled condition

The purpose of the paper is to investigate, by means of impedance spectrosc opy, the polarization phenomena occurring at ion exchange membrane/solution interface. The ionic transport in electrolyte solution is migration-diffus ion controlled, in steady-state ensured by a convective solution now. The L evenberg-Marquardt fitting procedure was used in order to obtain electrolyt e diffusion coefficient and to illustrate the ohmic resistance variation wi th polarization regime.