Anodic generation of cerium(IV). Charge-transfer kinetic parameters and conditional potentials at platinum, gold and glassy carbon

Abstract

The anodic oxidation of cerium(III) at platinum, gold and glassy carbon electrodes was investigated by rotating disc voltammetry in sulphuric and perchloric acid solutions. Conditional potentials, limiting currents and charge-transfer kinetic parameters were obtained and the results are discussed. The absence of chemical corrosion and mixed potentials indicated that glassy carbon is the best electrode material. Current efficiencies were calculated.