Abstract

The differential capacitance-potential dependence C(E) of electrolytically grown (111) and (100) faces of silver single crystals in diluted solutions of NaClO4 and KF was studied. Comparison with results obtained in KF solutions shows a concentration-independent shift of Emin to more negative potentials and higher values of the reciprocal slope of the C−1 vs. Cd−1 plots. The data obtained have been explained as due to a weak specific adsorption of ClO4− which is stronger on the (100) face. The influence of water in the double layer on the adsorption has been discussed.

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