ELECTRICAL DOUBLE-LAYER IN CONCENTRATED ELECTROLYTE-SOLUTIONS - A SEMIEMPIRICAL APPROACH

A method is suggested that allows the ion distribution in the electric al double layer to be described on the basis of a two-parameter Fermi distribution with allowance for the excluded volume of ions with hydra tion shell. This leads to a slower potential drop across the electrica l double layer. Deviation from the Debye-Huckel equation become pronou nced in the case of 1-1 electrolytes with concentrations C > 0.1 mol/l and the surface potentials psi > 100 mV.