Triazole derivative as new and effective corrosion inhibitor for carbon steel in hydrochloric acid: Electrochemical and quantum chemical studies

The corrosion inhibition properties of triazole derivative via 3,4-diamino-1,2,4-triazole (TRD) were investigated by the electrochemical impedance spectroscopy (EIS) and potentiodynamic polarization methods. The results of electrochemical research revealed that the TRD was adsorbed on the metal surface by adsorption mechanism and behave as mixed type inhibitor. The Among TRD exhibited maximum efficiency of 90% at 10-3M. The inhibition mechanism was analyzed by the potential of zero charge (Epzc) measurement at the solution/metal interface. The adsorption behaviour of the 3,4-diamino-1,2,4-triazole on Fe (110) surface was investigated by Monte Carlo simulations to verify their corrosion inhibition efficacies.