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Azzouni D, Alaoui Mrani S, Bertani R, Alanazi MM, En-nabety G, Taleb M. Experimental and Theoretical Investigation of the Inhibitor Efficiency of Eucalyptus globulus Leaf Essential Oil ( EuEO) on Mild Steel Corrosion in a Molar Hydrochloric Acid Medium. Molecules 2024; 29:3323. [PMID: 39064901 PMCID: PMC11279684 DOI: 10.3390/molecules29143323] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2024] [Revised: 07/06/2024] [Accepted: 07/09/2024] [Indexed: 07/28/2024] Open
Abstract
As a corrosion inhibitor for mild steel in a molar hydrochloric acid medium, we investigated the potential of Eucalyptus globulus essential oil (EuEO). Through electrochemical impedance spectroscopy (EIS), potentiodynamic polarization curves, and theoretical methods, including DFT/B3LYP 6-31G (d, p) and Monte Carlo simulations, the interactions between the EuEO components and the steel surface were analyzed. D-Allose, Betulinaldehyde, and Uvaol were identified as the major active compounds in the GC-MS analysis. The experimental results showed that EuEO reached an inhibitory efficiency as high as 97% at a 1 g/L concentration. The findings suggest that EuEO operates as a mixed-type inhibitor, reducing both cathodic and anodic reactions, as well as building up a protective coating on the steel surface. Simulations also confirmed that EuEO molecules function as electron donors and acceptors, enhancing corrosion resistance.
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Affiliation(s)
- Dounia Azzouni
- Laboratory of Engineering, Electrochemistry, Modelling and Environment, Faculty of Sciences, Sidi Mohamed Ben Abdellah University, Fez 30000, Morocco; (S.A.M.); (G.E.-n.); (M.T.)
| | - Soukaina Alaoui Mrani
- Laboratory of Engineering, Electrochemistry, Modelling and Environment, Faculty of Sciences, Sidi Mohamed Ben Abdellah University, Fez 30000, Morocco; (S.A.M.); (G.E.-n.); (M.T.)
| | - Roberta Bertani
- Industrial Engineering Department, University of Padua, Via F. Marzolo 9, 35131 Padua, Italy;
| | - Mohammed M. Alanazi
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia;
| | - Ghizlan En-nabety
- Laboratory of Engineering, Electrochemistry, Modelling and Environment, Faculty of Sciences, Sidi Mohamed Ben Abdellah University, Fez 30000, Morocco; (S.A.M.); (G.E.-n.); (M.T.)
| | - Mustapha Taleb
- Laboratory of Engineering, Electrochemistry, Modelling and Environment, Faculty of Sciences, Sidi Mohamed Ben Abdellah University, Fez 30000, Morocco; (S.A.M.); (G.E.-n.); (M.T.)
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Lgaz H, Lee HS. Computational Exploration of Phenolic Compounds in Corrosion Inhibition: A Case Study of Hydroxytyrosol and Tyrosol. MATERIALS (BASEL, SWITZERLAND) 2023; 16:6159. [PMID: 37763437 PMCID: PMC10532989 DOI: 10.3390/ma16186159] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Revised: 08/24/2023] [Accepted: 09/07/2023] [Indexed: 09/29/2023]
Abstract
The corrosion of materials remains a critical challenge with significant economic and infrastructural impacts. A comprehensive understanding of adsorption characteristics of phytochemicals can facilitate the effective design of high-performing environmentally friendly inhibitors. This study conducted a computational exploration of hydroxytyrosol (HTR) and tyrosol (TRS) (potent phenolic compounds found in olive leaf extracts), focusing on their adsorption and reactivity on iron surfaces. Utilizing self-consistent-charge density-functional tight-binding (SCC-DFTB) simulations, molecular dynamics (MD) simulations, and quantum chemical calculations (QCCs), we investigated the molecules' structural and electronic attributes and interactions with iron surfaces. The SCC-DFTB results highlighted that HTR and TRS coordinated with iron atoms when adsorbed individually, but only HTR maintained bonding when adsorbed alongside TRS. At their individual adsorption, HTR and TRS had interaction energies of -1.874 and -1.598 eV, which became more negative when put together (-1.976 eV). The MD simulations revealed parallel adsorption under aqueous and vacuum conditions, with HTR demonstrating higher adsorption energy. The analysis of quantum chemical parameters, including global and local reactivity descriptors, offered crucial insights into molecular reactivity, stability, and interaction-prone atomic sites. QCCs revealed that the fraction of transferred electron ∆N aligned with SCC-DFTB results, while other parameters of purely isolated molecules failed to predict the same. These findings pave the way for potential advancements in anticorrosion strategies leveraging phenolic compounds.
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Affiliation(s)
- Hassane Lgaz
- Innovative Durable Building and Infrastructure Research Center, Center for Creative Convergence Education, Hanyang University ERICA, 55 Hanyangdaehak-ro, Sangrok-gu, Ansan-si 15588, Gyeonggi-do, Republic of Korea;
| | - Han-seung Lee
- Department of Architectural Engineering, Hanyang University ERICA, 55 Hanyangdaehak-ro, Sangrok-gu, Ansan-si 15588, Gyeonggi-do, Republic of Korea
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Lgaz H, Lee HS, Kaya S, Salghi R, Ibrahim SM, Chafiq M, Bazzi L, Ko YG. Unraveling Bonding Mechanisms and Electronic Structure of Pyridine Oximes on Fe(110) Surface: Deeper Insights from DFT, Molecular Dynamics and SCC-DFT Tight Binding Simulations. Molecules 2023; 28:molecules28083545. [PMID: 37110779 PMCID: PMC10141362 DOI: 10.3390/molecules28083545] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Revised: 04/07/2023] [Accepted: 04/13/2023] [Indexed: 04/29/2023] Open
Abstract
The development of corrosion inhibitors with outstanding performance is a never-ending and complex process engaged in by researchers, engineers and practitioners. The computational assessment of organic corrosion inhibitors' performance is a crucial step towards the design of new task-specific materials. Herein, the electronic features, adsorption characteristics and bonding mechanisms of two pyridine oximes, namely 2-pyridylaldoxime (2POH) and 3-pyridylaldoxime (3POH), with the iron surface were investigated using molecular dynamics (MD), and self-consistent-charge density-functional tight-binding (SCC-DFTB) simulations. SCC-DFTB simulations revealed that the 3POH molecule can form covalent bonds with iron atoms in its neutral and protonated states, while the 2POH molecule can only bond with iron through its protonated form, resulting in interaction energies of -2.534, -2.007, -1.897, and -0.007 eV for 3POH, 3POH+, 2POH+, and 2POH, respectively. Projected density of states (PDOSs) analysis of pyridines-Fe(110) interactions indicated that pyridine molecules were chemically adsorbed on the iron surface. Quantum chemical calculations (QCCs) revealed that the energy gap and Hard and Soft Acids and Bases (HSAB) principles were efficient in predicting the bonding trend of the molecules investigated with an iron surface. 3POH had the lowest energy gap of 1.706 eV, followed by 3POH+ (2.806 eV), 2POH+ (3.121 eV), and 2POH (3.431 eV). In the presence of a simulated solution, MD simulation showed that the neutral and protonated forms of molecules exhibited a parallel adsorption mode on an iron surface. The excellent adsorption properties and corrosion inhibition performance of 3POH may be attributed to its low stability compared to 2POH molecules.
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Affiliation(s)
- Hassane Lgaz
- Innovative Durable Building and Infrastructure Research Center, Center for Creative Convergence Education, Hanyang University ERICA, 55 Hanyangdaehak-ro, Sangrok-gu, Ansan-si 15588, Gyeonggi-do, Republic of Korea
| | - Han-Seung Lee
- Department of Architectural Engineering, Hanyang University-ERICA, 55 Hanyangdaehak-ro, San-grok-gu, Ansan-si 15588, Gyeonggi-do, Republic of Korea
| | - Savaş Kaya
- Department of Pharmacy, Health Services Vocational School, Sivas Cumhuriyet University, Sivas 58140, Turkey
| | - Rachid Salghi
- Laboratory of Applied Chemistry and Environment, Applied Science National School (ENSA), University Ibn Zohr, P.O. Box 1136, Agadir 80000, Morocco
- Laboratoire de Génie Industriel, de l'Énergétique et de l'Environnement (LGI2E), SupMTI, Rabat 10000, Morocco
| | - Sobhy M Ibrahim
- Department of Biochemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Maryam Chafiq
- Materials Electrochemistry Group, School of Materials Science and Engineering, Yeungnam University, Gyeongsan 38541, Gyeongsangbuk-do, Republic of Korea
| | - Lahcen Bazzi
- Laboratoire de Génie Industriel, de l'Énergétique et de l'Environnement (LGI2E), SupMTI, Rabat 10000, Morocco
| | - Young Gun Ko
- Materials Electrochemistry Group, School of Materials Science and Engineering, Yeungnam University, Gyeongsan 38541, Gyeongsangbuk-do, Republic of Korea
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Amodu OS, Odunlami MO, Akintola JT, Ojumu TV, Ayanda OS. Artificial neural network and response surface methodology for optimization of corrosion inhibition of mild steel in 1 M HCl by Musa paradisiaca peel extract. Heliyon 2022; 8:e11955. [DOI: 10.1016/j.heliyon.2022.e11955] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Revised: 07/13/2022] [Accepted: 11/21/2022] [Indexed: 11/30/2022] Open
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AGRI-FOOD WASTES EXTRACT AS SUSTAINABLE-GREEN INHIBITORS CORROSION OF STEEL IN SODIUM CHLORIDE SOLUTION: ACLOSE LOOK AT THE MECHANISM OF INHIBITING ACTION. SOUTH AFRICAN JOURNAL OF CHEMICAL ENGINEERING 2022. [DOI: 10.1016/j.sajce.2022.11.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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Oucheikh L, Ou-Ani O, Moujane S, Ansari A, Oubair A, Znini M. Chemical composition, in vitro antifungal activity, DFT, molecular docking and molecular dynamics simulation studies of the essential oil from Anvillea gracinii subsp. radiata (Coss. & Durieu) Anderb. JOURNAL OF ESSENTIAL OIL RESEARCH 2022. [DOI: 10.1080/10412905.2022.2109767] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
Affiliation(s)
- Lahcen Oucheikh
- Faculty of Sciences and Techniques, Laboratory of Natural Substances & Synthesis and Molecular Dynamics, Moulay Ismail University of Meknes, Errachidia, Morocco
| | - Omar Ou-Ani
- Faculty of Sciences and Techniques, Laboratory of Natural Substances & Synthesis and Molecular Dynamics, Moulay Ismail University of Meknes, Errachidia, Morocco
| | - Soumia Moujane
- Faculty of Science and Techniques, Biochemistry of natural substances, Moulay Ismail University of Meknes, Errachidia, Morocco
| | - Abdeslam Ansari
- Faculty of Sciences and Techniques, Laboratory of Natural Substances & Synthesis and Molecular Dynamics, Moulay Ismail University of Meknes, Errachidia, Morocco
| | - Ahmad Oubair
- Faculty of Sciences and Techniques, Laboratory of Natural Substances & Synthesis and Molecular Dynamics, Moulay Ismail University of Meknes, Errachidia, Morocco
| | - Mohamed Znini
- Faculty of Sciences and Techniques, Laboratory of Natural Substances & Synthesis and Molecular Dynamics, Moulay Ismail University of Meknes, Errachidia, Morocco
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