ELECTROREDUCTION OF PERSULFATE ANION AT A POLYLCRYSTALLINE SILVER ELECTRODE AND AT THE SEPARATE FACES OF A MONOCRYSTAL OF SILVER AND OF BISMUTH.

An investigation was made on the dependence of the reduction rate of the persulfate anion on the potential, concentration, and nature of the supporting electrolyte, on electrodes of polycrystalline silver, and also on the faces of silver (111), (100), and bismuth (111). The authors determined the effective discharge of the anion from kinetic data and showed that the reduction of the persulfate anion at these electrodes proceeded by a retarded discharge mechanism. The differences in the discharge rates at the electrodes investigated, except for polycrystalline silver, are determined only by the differences in the structure of the double layer of these metals.