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 wasachieved on the surface of gold electrode by sol-gel technique. the electrochemical behaviorof modified electrode was characterized by cyclic voltammetry in detail. the film electrodeobtained 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 about0.26 v, and a well- formed sharp catalytic oxidation peak at about 0.154 v was observed atcd(ii) complex modified electrode. the transfer coefficient (?) for electrocatalytic oxidationof hydrazine and the diffusion coefficient of this substance under the experimental conditionswere also investigated .