Abstract
Abstract The electrochemical double layer on Ag in NaCl solutions was examined with X-ray photoelectron spectroscopy (XPS) and ion scattering spectroscopy (ISS). The potential dependent surface concentration of the adsorbed species (Na + , Cl − , H 2 O) as well as the cationic excess charge was determined. The specific adsorption of Cl − is accompanied by coadsorption of cations and water. Angle-resolved XPS measurements and ISS experiments gave more detailed information about the structure of the double layer perpendicular to the silver electrode surface. A layered structure of the specifically adsorbed chloride anions and the coadsorbed cations was determined, in agreement with recently published studies.
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