Electrocatalytic Oxidation of Hydrazine on a Gold Electrode Modified by new Cd(II) (tterpyridine) Complex by Sol-Gel Technique

A novel chemically modified electrode containing Cd(II) (ttpy) Complex was achieved on the surface of gold electrode by sol-gel technique. The electrochemical behavior of modified electrode was characterized by cyclic voltammetry in detail. The film electrode obtained was very stable and exhibited electrocatalytic response for oxidation of hydrazine. Results showed at bare Au electrode, a small oxidation peak current was observed at about 0.26 V, And a well- formed sharp catalytic oxidation peak at about 0.154 V was observed at Cd(II) complex modified electrode. The transfer coefficient (?) for electrocatalytic oxidation of hydrazine and the diffusion coefficient of this substance under the experimental conditions were also investigated .