Abstract

The studies of the growth kinetics of a screw-dislocation-free (100) face of a silver single crystal have been extended over a broader overpotential range. The growth rate of screw-dislocation-free (100) faces at constant potential has been measured and the 2D nucleation rate has been determined therefrom. It is established that the values of the 2D nucleation rate obtained follow the classical Volmer dependence in the range of higher overpotentials. At lower overpotentials, deviations from the Volmer dependence are observed. These deviations may eventually be attributed to the presence of active sites for nucleation at the face surface.

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