Electrochemical Behavior of 1,2,4-Triazole and Benzotriazole at GlassyCarbon Electrode in Acidic Media

摘要

Electrochemical investigations of 1,2,4-triazole and benzotriazole in aqueous acidic media has been carried outby cyclic voltammetric measurements. Cyclic voltammetric experiments were carried on glassy carbon (GC) workingelectrode. Effect of potential scan rate, pH of the solution and use of different surfactant on the electrochemical behaviorhas been investigated. Single reduction wave was observed for 1,2,4-triazole due to the reduction of N=N moiety and nooxidation peak was observed in the reverse scan. In case of benzotriazole one clear reduction peak was observed in thecathodic scan and no anodic peak was seen. Effect of pH, sweep rate, analyte concentrations and the presence of differentsurfactants on the reduction peak current was evaluated. Electro-reduction processes of both the compounds were found tobe diffusion controlled in nature. The plausible mechanism for the electroreduction process was proposed. Electrochemicalproperty of two compounds was also studied under hydrodynamic conditions using glassy carbon rotating discelectrode.