DIFFUSE DOUBLE-LAYER INTERACTION BETWEEN 2 PARALLEL PLATES WITH CONSTANT SURFACE-CHARGE DENSITY IN AN ELECTROLYTE SOLUTION .5. INTERACTION OF METALLIC PLATES WITH ADSORBED SURFACE-CHARGE OF CONSTANT DENSITY

The double layer interaction between two parallel metallic plates with adsorbed surface charge of constant density in a symmetrical electrolyte solution is considered. Numerical calculations using the nonlinear Poisson-Boltzmann equation are made. Analytic expressions for the interaction are also obtained by using the Debye-Hückel approximation. The double layer interaction is found to be influenced by true charges induced on the plate surface due to electrostatic induction. This influence becomes important at small plate separations. It is also shown that the force and potential energy of interaction between metallic plates are small compared with those between insulating plates. © 1979 Dr. Dietrich Steinkopff Verlag.