Anion Specific Effects at Negatively Charged Interfaces: Influence of Cl^–, Br^–, I^–, and SCN^– on the Interactions of Na⁺ with the Carboxylic Acid Moiety

Abstract

in the interfacial region at levels close to their detection limits. The results contradict electrostatic theories on charged interfaces where co-ions are not expected to play any significant role. The higher propensity for the large polarizable anions to deprotonate the monolayer is explained in terms of their ability to modify the cations affinity toward the carboxylic acid groups present at the surface.

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