Anticorrosive characteristics of imidazole derivative on carbon steel in 1 M HCl

Original scientific paper


  • Asma Barrahi Laboratory of Materials, Nanotechnology and Environment, Faculty of Sciences, Mohammed V University in Rabat, P.O. Box. 1014, Rabat, Morocco
  • Abdelkbir Bellaouchou Laboratory of Materials, Nanotechnology and Environment, Faculty of Sciences, Mohammed V University in Rabat, P.O. Box. 1014, Rabat, Morocco
  • Burak Dikici Ataturk University, Department of Mechanical Engineering, 25240 Erzurum, Turkey
  • Ismail Warad Department of Chemistry, AN-Najah National University, P.O. Box 7, Nablus, Palestine
  • Mohamed Maatallah Laboratory of Molecular Chemistry, Faculty of Sciences Semlalia, Cadi Ayyad University, PO Box 2390, Marrakech, Morocco
  • Natalia A. Lozinskaya Department of Chemistry, Lomonosov Moscow State University, 119991 Moscow, Russia
  • Danil R. Bazanov Department of Chemistry, Lomonosov Moscow State University, 119991 Moscow, Russia
  • Fouad Benhiba Laboratory of Materials, Nanotechnology and Environment, Faculty of Sciences, Mohammed V University in Rabat, P.O. Box. 1014, Rabat, Morocco and Higher Institute of Nursing Professions and Health Techniques of Agadir Annex Guelmim, Morocco
  • Loubna Adlani Laboratory of Advanced Materials and Process Engineering, Faculty of Sciences, Ibn Tofail University, P.O. Box. 133, 14000 Kenitra, Morocco
  • Mohamed El Faydy Laboratory of Organic Chemistry, Inorganic, Electrochemistry, and Environment, Faculty of Sciences, Ibn Tofaïl University, PO Box 133, 14000, Kenitra, Morocco
  • Abdelkader Zarrouk Laboratory of Materials, Nanotechnology and Environment, Mohammed V University, Faculty of Science, 4Av. ibn Battuta, B.P. 1014 Rabat, Morocco



Corrosion inhibition, C35E steel, electrochemical methods, surface analysis
Graphical Abstract


The novelty of the work is to scrutinize for the first time the 4R,5S- 2,4,5-tris(4-ethoxy­phenyl)-4,5-dihydro-1H-imidazole (TEPI) as a corrosion inhibitor for carbon steel (C35E) in the acidic medium. The inhibitory properties of TEPI were assessed through various methods, including electrochemical, spectroscopic, and surface analysis, as well as quantum chemical calculations. The protective effect of C35E was seen to expand as the TEPI amount was extended but to diminish as temperature was augmented, fulfilling 98.3 % at 1 mM under 303 K. Certain thermodynamic and kinetic indices were estimated and explored. The TEPI complied with the Langmuir adsorption isotherm when it adsorbs on the C35E surface. TEPI behaviour was revealed by polarization trials to be of mixed type. The establishment of an adsorption-linked preventive TEPI layer on the C35E surface has been disclosed thanks to surface analysis. The outcomes of scanning electron microscopy coupled with energy dispersive X-ray spectroscopy clearly illustrate that TEPI can effi­ci­ently adsorb at the C35E interface, substantially reducing C35E steel corrosion. UV-visible analysis of the inhibited electrolyte clearly reveals the complexation of iron cations with TEPI molecules. The density functional theory (DFT), Monte Carlo(MC) and molecular dynamic simulation (MDS) were adopted to check out the adsorption charac­teristics of the TEPI onto C35E surface. The laboratory outcomes have been proven by DFT and MDS.


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02-04-2024 — Updated on 02-04-2024

How to Cite

Barrahi, A., Bellaouchou, A., Dikici, B., Warad, I., Maatallah, M., Lozinskaya, N. A., Bazanov, D. R., Benhiba, F., Adlani, L., El Faydy, M., & Zarrouk, A. . (2024). Anticorrosive characteristics of imidazole derivative on carbon steel in 1 M HCl: Original scientific paper. Journal of Electrochemical Science and Engineering, 14(2), 193–212.




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