Abstract
It has been shown that the adsorption of ions at oxide/electrolyte interface should be treated in terms of adsorption on a heterogeneous solid surface. This is because the adsorption runs via formation of complexes with surface oxygen atoms. Because of the small degree of oxide surface organization, different surface oxygens may have different status with respect to electrostatic interactions and the strength of the chemical bonds formed between the surface oxygens and the adsorbed protons or metal ions. We have shown that the equations describing the equilibria of formation of surface complexes can be transformed to Langmuir-like equations for multicomponent adsorption. One can apply, therefore, for these systems theoretical methods used to describe mixed-gas adsorption on heterogeneous solid surfaces.
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Rudziński, W., Charmas, R. Effects of surface heterogeneity of oxides in simple ion adsorption at oxide/electrolyte interfaces. Adsorption 2, 245–255 (1996). https://doi.org/10.1007/BF00128306
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DOI: https://doi.org/10.1007/BF00128306