Explanation of the Quinoxaline Analog's Adsorption and Inhibition Mechanism for Carbon Steel Corrosion in 1 M HCl Based on Experiments and Theoretical Calculations
نویسندگان
1 Laboratory of Advanced Materials and Process Engineering, Faculty of Sciences, Ibn Tofail University, P. O. Box: 133, 14000, Kenitra, Morocco
2 Laboratory of Medicinal Chemistry, Drug Sciences Research Center, Faculty of Medicine and Pharmacy, Mohammed V University, Rabat, Morocco
3 Department of Chemistry, AN-Najah National University, P. O. Box: 7, Nablus, Palestine. Research Centre, Manchester Salt & Catalysis, Unit C, 88-90 Chorlton Rd, M15 4AN, Manchester, United Kingdom
4 Laboratory of Materials, Nanotechnology and Environment, Faculty of Sciences, Mohammed V University in Rabat, P. O. Box: 1014, Rabat, Morocco. Higher Institute of Nursing Professions and Health Techniques of Agadir Annex Guelmim, Morocco
5 Institute of Nursing Professions and Health Techniques Fez, EL Ghassani Hospital, Fez 30000, Morocco
6 Laboratory of Materials, Nanotechnology and Environment, Faculty of Sciences, Mohammed V University in Rabat, P. O. Box: 1014, Rabat, Morocco. Research Centre, Manchester Salt & Catalysis, Unit C, 88-90 Chorlton Rd, M15 4AN, Manchester, United Kingdom
7 Laboratory of Materials, Nanotechnology and Environment, Faculty of Sciences, Mohammed V University in Rabat, P. O. Box: 1014, Rabat, Morocco
8 Laboratory of Organic Chemistry, Inorganic, Electrochemistry, and Environment, Department of Chemistry, Faculty of Sciences, Ibn Tofaïl University, P. O. Box: 133, 14000, Kenitra, Morocco
9 Laboratory of Interface Materials Environment, Faculty of Sciences Aἵn Chock, Hassan II University of Casablanca BP, 5366, Morocco
10 Laboratory of Interface Materials Environment, Faculty of Sciences Aἵn Chock, Hassan II University of Casablanca BP, 5366, Morocco
11 Ataturk University, Department of Mechanical Engineering, 25240 Erzurum, Erzurum, Turkey
12 Laboratory of Materials, Nanotechnology and Environment, Faculty of Sciences, Mohammed V University in Rabat, P. O. Box: 1014, Rabat, Morocco
13 Laboratory of Medicinal Chemistry, Drug Sciences Research Center, Faculty of Medicine and Pharmacy, Mohammed V University, Rabat, Morocco. Mohammed VI Center for Research and Innovation (CM6), Rabat 10000, Morocco
doi
10.22036/pcr.2024.440352.2472چکیده
In this work, we tested the effectiveness of phenyl-1-propylquinoxaline-2(1H)-one (PRQX), a novel quinoxaline analogue, as a corrosion inhibitor for carbon steel (C-S) in a 1M HCl electrolyte. Incorporating numerous techniques, such as scanning electron microscopy (SEM), electrochemical impedance spectroscopy (EIS), energy dispersive X-ray spectroscopy (EDX), and UV-visible spectroscopy, we examined the inhibitory properties of PRQX. PRQX maximum anti-corrosion efficiency was determined to be 97.7% at 10-3 M dose at 303 K temperature. PRQX displayed a mixed-type inhibitor effect, slowing anodic and cathodic corrosion processes, as indicated by PPD tests. The PRQX molecule binds to the C-S surface in compatibility with the Langmuir adsorption model. Uv-visible analysis of the inhibited electrolyte clearly reveals the complexation of the Fe2+ with the PRQX molecule. Additionally, using density functional theory (DFT) and molecular dynamics simulation (MDS), conceptual analysis of the PRQX molecule's most reactive sites and its adsorption process were carried out.
