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Elementary processes for the reduction of thin films of silver chloride on silver have been investigated using rotating disk techniques. Experiments were carried out in 1, 2, and 4N solutions of . The effective diffusion coefficients of the prevalent species of silver ion in 2 and 4N are about , respectively. Reduction of thin films on Ag can be carried out at high rates, 100–200 mA/cm2 at 300 mV overpotential, two orders of magnitude higher than that for the reduction of dissolved from bulk solution at 2000 rpm. A linear ; relationship and its independence of the state of charge suggest that liquid phase transport occurs, possibly followed by a rate controlling process of surface diffusion.
Katan et al. (Mon,) studied this question.