Periodic phenomena during the dissolution of copper in chloride solutions

By means of chronoammetry and chronopotentiometry, cyclic voltammetry, a rotating disc electrode, and raster microscopy the nature of oscillations of a copper electrode's potential (or current) during its chemical and anodic dissolution in the current density range of 78-3 . 10(3) A . m(-2) in acid and alkaline solutions of CuCl2 and FeCl3 has been established. The influence of temperature, solution component concentration, and current density on the form and basic characteristics of potential oscillations has been studied.