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    Advanced evaluation of novel quinoline derivatives for corrosion inhibition of mild steel in acidic environments: A comprehensive electrochemical, computational, and surface study
    (Elsevier, 2024) Belkheiri, Azzeddine; Dahmani, Khadija; Mzioud, Khaoula; Rbaa, Mohamed; Galai, Mouhsine; Hmada, Abdelfettah; Erdogan, Saban
    Corrosion poses a significant threat to the integrity and longevity of iron and its alloys, which are crucial materials for modern industry and infrastructure. This study investigates the effectiveness of two recently synthesized inhibitors based on quinoline structures: MPQ (2-methyl-5-(propoxymethyl) quinolin-8-ol) and AAQ ((((2aminoethyl)amino)methyl)-2-methylquinolin-8-ol) in protecting steel against environmental degradation, particularly in acidic and chloride-rich conditions such as hydrochloric acid. The inhibitors exhibited significant corrosion inhibition efficiencies of 92.37 % for MPQ and 84.13 % for AAQ, as demonstrated through electrochemical analysis. Surface characterization techniques, including SEM-EDX(Scanning Electron Microscopy with Energy Dispersive X-ray analysis), AFM (Atomic Force Microscopy), and contact angle measurements, revealed the formation of a protective barrier film that reduces the corrosion rate. Additionally, theoretical calculations using the Gaussian package provided insights into the adsorption behaviors and protective mechanisms of the inhibitors on mild steel surfaces. The findings contribute to the ongoing search for viable corrosion inhibitors, offering prospects for application in industries and critical infrastructures to enhance corrosion protection and durability.
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    Development process for eco-friendly corrosion inhibitors
    (Elsevier, 2022) Rbaa, Mohamed; Galai, Mouhsine; Dagdag, Omar; Guo, Lei; Tüzün, Burak; Berdimurodov, Elyor; Zarrouk, Abdelkader
    Currently, the eco-friendly corrosion inhibitors are widely used to protect the metallic materials from the corrosion destruction. The eco-friendly corrosion inhibitors are biodegradable, low toxic, low volatile, low cost, good water soluble, good adsorbent, and do not contain heavy metals or other toxic compounds. The plant extracts and natural substances are suggested as an eco-friendly corrosion inhibitors in the various corrosion medium. The corrosion of steel, copper, magnesium, aluminum and other metal based metallic materials in the aggressive acidic, alkaline, saline and other corrosion medium are efficiently protect with the presence of eco-friendly corrosion inhibitors. The cost in the synthesizing natural inhibitors is very low and syntheses processes are environmental friendly. This make eco-friendly corrosion inhibitors become more efficient as an economically and environmentally. In this chapter, the development process for eco-friendly corrosion inhibitors, their advantages and their inconveniences are discussed and reviewed. © 2022 Elsevier Inc. All rights reserved.
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    Development process for ecofriendly corrosion inhibitors
    (26.07.2022) Rbaa, Mohamed; Galai, Mouhsine; Dagdag, Omar; Guo, Lei; Tüzün,Burak; Berdimurodov, Elyor; Zarrouk, Abdelkader; Lakhrissi, Brahim
    The metallic materials are main used materials, because, their physical properties, such as electrical conduction, thermal conduction, and mechanical performances. The steel based metallic materials are most common in the gas and oil industry [1–3]. However, a high percentage of the steel materials are damaged by corrosion in acidic environments [4]. Therefore, to protect steel materials is ongoing problem. Currently, many researches are interested to going research in the corrosion protection.
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    Exploring the performance of Coriandrum sativum extract as an effective corrosion inhibitor for mild steel in a 2.0MH3PO4 medium, and its sustainable application in the eco-friendly removal of heavy metals
    (Elsevier, 2024) Kadiri, Lamya; Galai, Mouhsine; Ouass, Abdelkarim; Essaadaoui, Youness; Khattabi, Mohamed; Kaya, Savas; Arrousse, Nadia
    This research investigated the performance of coriander seeds, for the first time, in two critical phenomena: wastewater treatment and corrosion inhibition in acidic environments. On one hand, the aqueous extracts from Coriandrum sativum seeds (CE) were evaluated for mild steel corrosion inhibition in a 2.0 M phosphoric acid medium using several techniques such as phytochemical analysis (GC-MS), potentiodynamic polarization, electrochemical impedance spectroscopy, scanning electron microscopy (SEM-EDAX) and theoretical analyses, including DFT calculations and Molecular Dynamic Simulations, further elucidated the major chemical components. First, the phytochemical analysis has proved that CE contains heteroatoms. Second, the electrochemical results indicate that CE behaves as a mixed type inhibitor and the corrosion reaction is controlled by charge transfer process. Finally, The theoretical calculations confirmed that the active compounds of CE can be adsorbed on the Fe (1 1 0) surface through physical patterns and by sharing charges with iron to form coordinate bonds. The acquired results have shown a strong correlation between corrosion inhibition efficiency that was about 93 %, SEM-EDAX and DFT parameters. On the other hand, the study examined coriander seeds (CS) in powder form as a removal of copper ions in aqueous solutions through Atomic Absorption Spectroscopy and Inductively Coupled Plasma analysis. The parametric study was effectuated by establishing the effect of contact time, adsorbent mass, solution pH and stirring speed. The removal rate was about 79 %. Regeneration studies showed that CS could be reused for five cycles without significant loss of effectiveness. SEM-EDAX analysis has proved the studied process.
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    New Xanthene Diones Compounds as a Corrosion Inhibitor of Mild Steel in Acid Medium: Electrochemical, Surface Characterization and Theoretical Insights
    (Springernature, 2023) Dahmani, K.; Galai, Mouhsine; Ouakki, M.; Benzekri, Z.; El Magri, A.; Iachhab, R.; Kaya, S.
    Two newly synthesized inhibitors, namely 3,3,6,6-tetramethyl-9-phenyl-3,4,6,7-tetrahydro-2H-xanthenes-1,8 (5H,9H)-dione (ZM-3) and 9-(4-Bromophenyl)-3,3,6,6-tetramethl-3,4,5,6,7,9-hexahydro-2H-xanthene-1,8-dine (ZM-4) have been reported in the current study as a promising corrosion inhibitors of mild steel (MS) in 1 M HCl solution. Electrochemical experiments such as Electrochemical Impedance Spectroscopy (EIS) and Potentiodynamic Polarization measurements (PP) were performed for this aim. The quantum properties of the molecules were also calculated and analyzed using theoretical chemistry principles. Density Functional Theory was used in order to achieve this (DFT). The inhibitory action mechanism was discovered using Molecular Dynamic Simulation (MDS). The increase of the inhibitor concentration was thought to have resulted in a considerable reduction in MS corrosion rate in molar hydrochloric acid solution, with inhibitive efficiency values of 90.8 and 91.3% at 10(-3) M inhibitor concentrations of ZM-3 and ZM-4, respectively. As the inhibitor concentration was increased, the inhibition effectiveness improved. Using temperatures ranging from 298 to 328 K, the effect of temperature on the corrosion behavior of MS in molar HCl at the inhibitor's optimum concentration of 10(-3) was investigated. ZM-3 and ZM-4 behaved as mixed type inhibitors, according to polarization plots. The Langmuir isotherm model fit the adsorption mechanism of the evaluated inhibitors. Scanning Electron Microscopy with Energy Dispersive X-Ray Analysis (SEM/EDX), Atomic force microscopy (AFM), contact angle, and X-ray Powder Diffraction (XRD) methods were used to examine the corroded surface.