Electrocatalytic Oxidation of Hydrazine on the Nickel Particles Dispersed into Poly (ortho-anisidine) Modified Glassy Carbon Electrode

The advantageous features of polymer modification and dispersion of metallicparticles into the organic polymer was studied by construction of poly ortho-anisidine (poa)film and ni(??) were used in combination with poa films by immersion of the glassy carbonmodified electrode in nickel ions solution. this modified electrode exhibits goodelectrocatalytic activity toward the electrooxidation of hydrazine and has been studied bycyclic voltammetry (cv) and chronoamperometry techniques. the oxidation of hydrazine isoccur at a potential about 140 mv less positive than that at unmodified electrode. theelectron transfer coefficient (?) was determined and the electrocatalytic oxidation peakcurrent of hydrazine showed a linear dependent on the hydrazine concentration and a linearcalibration plot were obtained in the range of 5×10-5 m-1.4×10-2 m with cyclic voltammetrymethod. the detection limit (2?) were determined as 3.9×10-5 m.