Abstract

The electroreduction of silver(I) on a platinum electrode from its solution in molten calcium nitrate tetrahydrate has been studied using voltammetric, chronopotentiometric, and chronoamperomeric techniques. The early stages of metal deposition appear to be controlled by a nucleation step as indicated by potential overshoots in chronopotentiometric and maxima in chronoamperometric transients. From the rising portion of the current–time transients, the number-density of the surface nuclei has been estimated. Diffusion coefficients calculated from the data obtained from different techniques are in good agreement.

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