Spectral investigation of the Piperazine Dithiosemicarbazone Derivatives as inhibitor on High Carbon Steel in HCl media

The inhibition efficiency of the piperazine dithiosemicarbazone derivatives on the corrosion of high carbon steel in HCL medium were studied by electrochemical impedance spectroscopy (EIS), polarization (Tafel), X-ray Photoelectron Spectroscopy (XPS) and UV-Visible spectroscopy. Electrochemical studies show that piperazine based dithiosemicarbazone derivatives acts as mixed type of inhibitors on high carbon steel. XPS data revealed that the inhibitors are adsorbed on the high carbon steel surface. It’s also obeying the Langmuir’s adsorption isotherm.