Indian Journal of Science and Technology
Year: 2023, Volume: 16, Issue: 37, Pages: 3073-3089
Original Article
Amira E Ali1, Ahmed Elmekabaty1, Hanaa M Elabbasy2, Mohamed F Atia3, Gamila E Bad1, Abd El-Aziz S Fouda1*
1Chemistry Department, Faculty of Science, Mansoura University, Mansoura, 35516, Egypt
2Misr Higher Institute for Engineering and Technology, Mansoura, Egypt
3Chemistry Department, Faculty of Science, Tanta University, Tanta, Egypt
*Corresponding Author
Email: [email protected]
Received Date:05 February 2023, Accepted Date:01 August 2023, Published Date:30 September 2023
Objectives: To examine the effectiveness of various benzene sulfonamide derivatives in preventing the corrosion of carbon steel in H2SO4 and to identify the dominating active form of the used compounds throughout the adsorption process in order to better understand the mechanism of their action. Methods: N-(4-(2-Aminothiazol-4-yl) phenyl) benzene sulfonamide (A) and N-(4-(2-thioxo-1, 2-dihydropyrimidim—4-yl) phenyl) benzene sulfonamide (B) were the tested compounds and were chosen based on molecular structure. To examine the effectiveness and mechanism of inhibition, the mass method (ML) has been combined with a number of electrochemical methods, including potentiodynamic polarization (PP) and electrochemical impedance spectroscopy (EIS). Fourier-transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDX), and atomic force microscope (AFM) techniques also, were used to confirm the adsorption phenomenon. Findings: The concentration and chemical makeup of the examined benzene sulfonamide derivatives greatly influence their ability to inhibit. These substances have mixed-type inhibitory properties and work by adhering to surfaces in accordance with the Temkin adsorption isotherm. The investigated benzene sulfonamide derivatives’ ability to inhibit might be related to their physisorption on the metal surface, which occurs when the inhibitors’ protonated form interacts with the charged metal surface. Novelty: This paper provides useful information regarding inhibition effect of benzene sulfonamide derivatives. The outcome of this work contributes to better understanding of the mechanism of inhibition by quantum chemical examination and Monte Carlo model and to provide more information on carbon steel corrosion for academic and starting researchers.
Keywords: Corrosion inhibition; Carbon steel; H2SO4; Sulfonamide derivatives; FTIR; SEM; EDX; AFM
© 2023 Ali et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. Published By Indian Society for Education and Environment (iSee)
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