On the coverage dependence of the partial charge transfer coefficient

Abstract

The depolarization of adions due to electrostatic interactions in submonolayer films at a metal/electrolyte solution interface is studied, using recent results of non-local electrostatic theory, which takes into account field penetration into the metal and solvent structure effects. The monolayer of interacting adions is described within a self-consistent field generalization of the single-adatom Anderson model. Two alternative descriptions of the adion distribution along the surface are considered: the “cut-out disc” and the “square lattice” model, reflecting the limits of ordered and disordered layers. The coverage dependence of the adatom charge is estimated.