Abstract

The electrochemical reaction Cd 2+ + 2 e − = CD(Hg) has been studied in dimethylsulfoxide containing tetraethylammonium perchlorate as a supporting electrolyte, using dc polarography, ac admittance measurements, cyclic voltammetry with convolution and chronoamperometry. It has been found that a chemical reaction, probably partial desolvation of the reactant, precedes the electron tranfer and Cd 2+ is reduced according to a CE(E) mechanism, with a heterogenous chemical reaction followed by one two-electron or two one-electron reduction steps. The kinetic parameters of this process were determined.

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