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Motawea MM. Electrochemical behavior and theoretical studies of arylazo (1-naphthyl-2-cyanoacetamide) derivatives as new corrosion inhibitors for Inconel 800 in chloride solution. Sci Rep 2024; 14:14683. [PMID: 38918473 PMCID: PMC11199561 DOI: 10.1038/s41598-024-62795-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2024] [Accepted: 05/21/2024] [Indexed: 06/27/2024] Open
Abstract
In this study, synthesize and insight the corrosion inhibition properties of two novel derivatives of 1-naphthyl-2-cyanoacetamide (NCDs) [2-cyano-2-((5,6-dimethyl-1H-benzo[d]imidazol-2-yl) diazenyl)-N (naphthalene-1-yl)acetamide] (NCD1) and [2-Cyano-N-(naphthalene-1-yl)-2-[(4,6-dimethyl-1H-pyrazolo [3, 4-b] pyridine-3-yl) hydrazono] acetamide] (NCD2). The characterization of the synthesized NCDs was confirmed through the utilization of Mass fragmentation analysis, 1H-NMR, and IR. The corrosion inhibition performance of NCDs as a novel and environmentally safe corrosion inhibitor has been investigated by electrochemical techniques, a chemical technique, and theoretical studies for its anti-corrosion behavior of Inconel 800 in chloride medium. In addition, the surface morphology and inhibitor adsorption on the Inconel 800 surface were confirmed utilizing SEM, EDX, FTIR, and AFM. The advantages of NCDs include their low toxicity, environmental friendliness, ease of preparation, low odor, contain (N, O, and π-Bonds), and the inhibition efficiency elevated with decreasing solution temperature as well as inhibitor dose increase, yielding increased efficiencies of 91.8% and 95.7% for NCD1 and NCD2, respectively, at the optimum concentration of 21 × 10-6 mol. L-1 and 298 K temperature. An analysis of Tafel plots reveals that NCDs adhere to a mixed and isothermal Langmuir adsorption mechanism. Density Functional Theory (DFT) and Monte Carlo (MC) simulation manifest the two compounds of NCDs can be adsorbed at the Fe (110) surface in a paralleled way, and can have a smaller energy gap (ΔE) value and exhibit higher efficiency. The experimental and theoretical findings confirm that the synthesized compounds obtained are capable of protecting the Inconel 800 from corrosion by creating an anti-corrosion coating on the surface.
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Affiliation(s)
- Mariem M Motawea
- Department of Chemistry, College of Science, University of Bisha, Bisha, 61922, P.O. Box. 551, Saudi Arabia.
- Department of Basic Science, Delta Higher Institute for Engineering and Technology, Mansoura, 35681, Egypt.
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2
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Kaur J, Almujibah H, Alam MM, Singh A, Saxena A, Verma DK, Berdimurodov E. Electrochemical and DFT Studies of the Pistacia Integerrima Gall Extract: An Eco-friendly Approach towards the Corrosion of Steel in Acidic Medium. ACS OMEGA 2024; 9:7643-7657. [PMID: 38405447 PMCID: PMC10882615 DOI: 10.1021/acsomega.3c06824] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Revised: 12/30/2023] [Accepted: 01/22/2024] [Indexed: 02/27/2024]
Abstract
A novel application of the Pistacia integerrima gall extract as an environmentally friendly corrosion inhibitor is reported in this study. The major phytochemicals present in the gall extract, namely pistagremic acid, β-sitosterol, pistiphloroglucinyl ether, pistaciaphenyl ester, naringenin, and 5,7-dihydroxy-2-(4-hydroxyphenyl)-2,3-dihydrochromen-4-one, play key roles in its anticorrosive behavior on steel in aggressive media. Several approaches were used to study the corrosion prevention activity of steel in 1 M H2SO4, including weight loss analysis, scanning electron microscopy (SEM), electrochemical impedance spectroscopy (EIS), potentiodynamic polarization (PDP), and density functional theory (DFT). At 2000 mg L-1, the highest efficiency of 92.19% was observed in 1 M H2SO4. An SEM study was conducted to validate the surface coverage of the metal surface. DFT studies revealed several nucleophilic regions present in the phytochemicals of the inhibitor, which supported the favorable nucleophilicity. Corrosion studies have not been performed on this sample. Phytochemicals make it an effective corrosion inhibitor, and its extraction process utilizes distilled water, making it better than other inhibitors. It has been proven that the obtained values of ΔEInhDFT for pistiphloroglucinyl, pistaciaphenyl ether, and naringenin organic compounds were very low, confirming the high reactivity of these corrosion inhibitors. The order of the values of ΔEInhDFT is as follows: pistaciaphenyl ether > pistiphloroglucinyl ether > naringenin organic compound; this suggests that pistaciaphenyl ether is more reactive than the other compounds. In this study, P. integerrima gall extract emerges as a novel and highly effective corrosion resistance agent in 1 M H2SO4, chosen for its relevance to acid pickling and cleaning processes.
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Affiliation(s)
- Jasdeep Kaur
- Department
of Chemistry, Chandigarh University Mohali, NH-05, Ludhiana - Chandigarh State
Highway, Sahibzada Ajit Singh Nagar, Punjab 140413, India
| | - Hamad Almujibah
- Department
of Civil Engineering, College of Engineering, Taif University, P.O. Box 11099, Taif City 21974, Saudi Arabia
| | - Mohammad Mahtab Alam
- Department
of Basic Medical Sciences, College of Applied Medical Science, King Khalid University, Abha 61421, Saudi Arabia
| | - Abha Singh
- Department
of Basic Sciences, College of Science and Theoretical Studies, Dammam-branch, Saudi Electronic University, Riyadh 11673, Saudi Arabia
| | - Akhil Saxena
- Department
of Chemistry, Chandigarh University Mohali, NH-05, Ludhiana - Chandigarh State
Highway, Sahibzada Ajit Singh Nagar, Punjab 140413, India
| | - Dakeshwar Kumar Verma
- Department
of Chemistry, Government Digvijay Autonomous
Postgraduate College, Rajnandgaon Chhattisgarh, 491441, India
| | - Elyor Berdimurodov
- New Uzbekistan
University, Mustaqillik
ave. 54, Tashkent 100007, Uzbekistan
- Medical
School, Central Asian University, Tashkent 111221, Uzbekistan
- Faculty
of Chemistry, National University of Uzbekistan, Tashkent 100034, Uzbekistan
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Abuelela AM, Kaur J, Saxena A, Bedair MA, Verma DK, Berdimurodov E. Electrochemical and DFT studies of Terminalia bellerica fruit extract as an eco-friendly inhibitor for the corrosion of steel. Sci Rep 2023; 13:19367. [PMID: 37938591 PMCID: PMC10632492 DOI: 10.1038/s41598-023-45283-0] [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: 06/20/2023] [Accepted: 10/18/2023] [Indexed: 11/09/2023] Open
Abstract
It is well known that metal corrosion causes serious economy losses worldwide. One of the most effective ways to prevent corrosion is the continuous development of high-efficient and environment-friendly corrosion inhibitors. Among the widely used organic and inorganic corrosion inhibitors, plant extracts are top candidates due to their nontoxic nature. The present study reports a novel application of the methanolic extract of Terminalia bellerica fruits as an environment friendly corrosion inhibitor for steel in sulphuric acid medium. The phytochemicals of the extract, namely Ellagic, Gallic, and Malic acids, play a key role of the anti-corrosive behavior of the extract. The corrosion prevention activity was studied on the steel in 1 M H2SO4 using a variety of approaches including weight loss analysis (WL), scanning electron microscope (SEM), electrochemical impedance spectroscopy (EIS), density functional theory (DFT), natural bond orbital analysis (NBO), Fukui function and Monte Carlo simulations (MC). In 1 M H2SO4 solution, the maximum electrochemical inhibition efficiency of 91.79% was observed at 4000 mg/L concentration of the extract. The NBO analysis showed that the charge density of the double bonds and the oxygen atoms of carbonyl and hydroxyl groups of the phytochemicals lies on the top of the natural bond orbitals which promotes the anticorrosive properties of the investigated inhibitors. The surface coverage of steel was validated by SEM measurements. According to DFT studies, numerous nucleophilic regions were present in the active phytochemical constituents of the inhibitor, demonstrating their favorable nucleophilicity. The computed electronic structure of the phytochemicals revealed band gaps of 4.813, 5.444, and 7.562 eV for Ellagic, Gallic, and Malic acids respectively suggesting effective metal-inhibitor interactions. A good correlation between experimental and theoretical findings was addressed.
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Affiliation(s)
- Ahmed M Abuelela
- Department of Chemistry, College of Science, King Faisal University, Al Ahsa, Saudi Arabia.
- Department of Chemistry, Faculty of Science, Al-Azhar University, Nasr City, Cairo, 11884, Egypt.
| | - Jasdeep Kaur
- Department of Chemistry, Chandigarh University, Mohali, India
| | - Akhil Saxena
- Department of Chemistry, Chandigarh University, Mohali, India.
| | - Mahmoud A Bedair
- Department of Chemistry, College of Science, University of Bisha, P.O. Box 511, 61922, Bisha, Saudi Arabia.
| | - Dakeshwar Kumar Verma
- Department of Chemistry, Government Digvijay Autonomous Postgraduate College, Rajnandgaon, Chhattisgarh, 491441, India
| | - Elyor Berdimurodov
- Chemical & Materials Engineering, New Uzbekistan University, 100007, Tashkent, Uzbekistan
- Medical School, Central Asian University, 111221, Tashkent, Uzbekistan
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Gad ES, Abbas MA, Bedair MA, El-Azabawy OE, Mukhtar SM. Synthesis and applications of novel Schiff base derivatives as corrosion inhibitors and additives for improvement of reinforced concrete. Sci Rep 2023; 13:15091. [PMID: 37699943 PMCID: PMC10497592 DOI: 10.1038/s41598-023-41165-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Accepted: 08/23/2023] [Indexed: 09/14/2023] Open
Abstract
The studied Schiff-base compounds in this work are multitasked investigated as corrosion inhibitors and also, to improve the physical and mechanical properties of reinforced concrete. The efficiency inhibition of the two novel Schiff-base compounds named (DHSiMF) and (DHSiB) for corrosion of carbon-steel in aqueous media of 1 M HCl was assessed via electrochemical methods and loss in weight. FT-IR, 1H-NMR spectra and elemental analysis were used to confirm the structure of such compounds. It was found to have successful inhibition even at low concentrations in tested media, as an increase in inhibitor concentration led to an improvement in the inhibition efficiency. The weight loss results clearly demonstrate that DHSiMF of C-steel in 1 M HCl has a higher inhibition efficiency than DHSiB, with a maximum inhibition efficiency (85%) attained at 1 × 10-2 M from DHSiMF. Electrochemical experiments likewise revealed the same order, but with a maximal inhibitory efficiency of 98.1%. The addition of inhibitors to the corrosive media dramatically changed the anodic Tafel constants (βa) and cathodic Tafel constants (βc), indicating a mixed type nature. Electrochemical polarization curves illustrated the functions of mixed-type inhibition and the action of adsorption matching with the Langmuir adsorption isotherm. The ∆Gads values for DHSiMF and DHSiB at temperatures (ranging from 303 to 333 K) are - 34.42 kilojoule/mole to - 37.51 kilojoule/mole. These values indicate that the compounds' adsorption types are chemo-physical adsorption. X-ray diffraction (XRD) and Scanning electron microscopy (SEM) experiments were used to check the existence of the protection layer on the surface of carbon steel by analyzing the morphologies of the corrosion effects and the formed chemical compositions of the corrosion outcomes. For the concrete, the findings suggest that the chemical reaction that takes place between the DHSiMF and DHSiB and the concrete mix will result in an increase in the flexural strength, the compressive strength, and the indirect tensile strength of the concrete that is made of the gravel and dolomite aggregate.
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Affiliation(s)
- Ehab S Gad
- Chemistry Department, College of Science and Arts, Jouf University, Alqurayat, Saudi Arabia
| | - Mohamed A Abbas
- Egyptian Petroleum Research Institute (EPRI), Cairo, 11727, Egypt.
| | - Mahmoud A Bedair
- Department of Chemistry College of Science and Arts, University of Bisha, P.O. Box 101, 61977, Al-Namas, Saudi Arabia
| | | | - Shymaa M Mukhtar
- Civil Engineering Department, Higher Technological Institute, 10th of Ramadan City, Sharqeya, Egypt
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Yousif QA, Fadel Z, Abuelela AM, Alosaimi EH, Melhi S, Bedair MA. Insight into the corrosion mitigation performance of three novel benzimidazole derivatives of amino acids for carbon steel (X56) in 1 M HCl solution. RSC Adv 2023; 13:13094-13119. [PMID: 37124012 PMCID: PMC10133963 DOI: 10.1039/d3ra01837g] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Accepted: 04/24/2023] [Indexed: 05/02/2023] Open
Abstract
Three new organic molecules having a benzimidazole base were synthesized and used for the protection of carbon steel (X56) against corrosion in 1.00 M HCl solution. The protection against corrosion was assessed by electrochemical frequency modulation (EFM), electrochemical impedance spectroscopy (EIS) and potentiodynamic polarization (PDP). In addition, the electronic and molecular structure of the synthesized molecules were computationally investigated and correlated to corrosion inhibition. Global reactivity descriptors, molecular orbitals (FMO and NBO) and local reactivity descriptors (molecular electrostatic potential map and Fukui functions) were discussed. The results showed a maximum protective efficiency range between 95% and 98% indicating high corrosion inhibition. Moreover, all molecules were able to combat the cathodic as well as anodic reaction simultaneously, revealing a mixed-type resistance. SEM and EDX verified effective adhering film formation to the metal surface. In accordance, the theoretical calculations showed effective electron reallocation from the organic film to the X56 c-steel surface. Furthermore, the adsorption annealing calculations revealed that structural layers of these molecules hold parallel and close to the metal surface with adsorption energy from 249.383 to 380.794 kcal mol-1, showing strong inhibitor-metal contact.
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Affiliation(s)
- Qahtan A Yousif
- University of Al-Qadisiyah, College of Engineering, Department of Materials Engineering Iraq
| | - Zainb Fadel
- General Directorate of Education Al-Qadisiyah, Ministry of Education Iraq
| | - Ahmed M Abuelela
- Department of Chemistry, Faculty of Science (Men's Campus), Al-Azhar University Nasr City 11884 Cairo Egypt
| | - Eid H Alosaimi
- Department of Chemistry, College of Science, University of Bisha P.O. Box 511 Bisha 61922 Saudi Arabia
| | - Saad Melhi
- Department of Chemistry, College of Science, University of Bisha P.O. Box 511 Bisha 61922 Saudi Arabia
| | - Mahmoud A Bedair
- Department of Chemistry College of Science and Arts, University of Bisha P.O. Box 101 Al-Namas 61977 Saudi Arabia
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Raorane CJ, Periyasamy T, Haldhar R, Asrafali SP, Raj V, Kim SC. Synthesis of Bio-Based Polybenzoxazine and Its Antibiofilm and Anticorrosive Activities. MATERIALS (BASEL, SWITZERLAND) 2023; 16:2249. [PMID: 36984131 PMCID: PMC10054769 DOI: 10.3390/ma16062249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Revised: 03/05/2023] [Accepted: 03/09/2023] [Indexed: 06/18/2023]
Abstract
Candida albicans are highly widespread pathogenic fungi in humans. Moreover, its developed biofilm causes serious clinical problems, leading to drug failure caused by its inherent drug tolerance. Hence, the inhibition of biofilm formation and virulence characteristics provide other means of addressing infections. Polymer composites (PCs) derived from natural products have attracted increasing interest in the scientific community, including antimicrobial applications. PCs are a good alternative approach to solving this challenge because of their excellent penetration power inside biofilms. The main objectives of this study were to synthesize a novel curcumin-based polybenzoxazine polymer composite (poly(Cu-A) PC) using Mannich condensation reaction and evaluate their potency as an antibiofilm and anticorrosive candidate against C. albicans. In addition, their anticorrosive efficacy was also explored. PC exhibited significant antibiofilm efficacy versus C. albicans DAY185 by the morphologic changing of yeast to hyphae, and>90% anticorrosive efficacy was observed at a higher dose of PC. These prepared PC were safe in vivo against Caenorhabditis elegans and Raphanus raphanistrum. The study shows that a polybenzoxazine polymer composite has the potential for controlling biofilm-associated fungal infections and virulence by C. albicans, and opens a new avenue for designing PCs as antifungal, anticorrosive agents for biofilm-associated fungal infections and industrial remediation.
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Essential Oil of Origanum vulgare as a Green Corrosion Inhibitor for Carbon Steel in Acidic Medium. ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING 2023. [DOI: 10.1007/s13369-023-07693-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/11/2023]
Abstract
AbstractIn this study, Oregano (Origanum vulgare) leaf essential oil was studied as an environmental-friendly anticorrosion agent for carbon steel in aggressive hydrochloric acid. The corrosion inhibition of O. vulgare was characterized by surface morphology, electrochemical, weight loss, theoretical and computational methods. It was found that the highest inhibition performance of O. vulgare was 85.64% at 2 g/l in 1 M HCl. The results of Langmuir isotherm and adsorption thermodynamics investigation demonstrated that the O. vulgare inhibitor adsorbed on the metal surface by the formation of rigid covalent bonds. The adsorption and inhibition centers of the selected inhibitor were studied by the computational methods, resulting in that the hydroxyl functional groups and benzoyl rings are mainly responsible for the high inhibition efficiency.
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Kaya F, Solmaz R, Geçibesler İH. Investigation of adsorption, corrosion inhibition, synergistic inhibition effect and stability studies of Rheum ribes leaf extract on mild steel in 1 M HCl solution. J Taiwan Inst Chem Eng 2023. [DOI: 10.1016/j.jtice.2023.104712] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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Kaya F, Solmaz R, Halil Geçibesler İ. The use of Methanol Extract of Rheum Ribes (Işgın) Flower as a Natural and Promising Corrosion Inhibitor for Mild Steel Protection in 1 M HCl Solution. J IND ENG CHEM 2023. [DOI: 10.1016/j.jiec.2023.02.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2023]
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An effective and smart corrosion inhibitor in acidic environment: Experimental & theoretical studies. KOREAN J CHEM ENG 2023. [DOI: 10.1007/s11814-022-1246-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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Kaya F, Solmaz R, Halil Geçibesler İ. Adsorption and Corrosion Inhibition Capability of Rheum Ribes Root Extract (Işgın) for Mild Steel Protection in Acidic Medium: A Comprehensive Electrochemical, Surface Characterization, Synergistic Inhibition Effect, and Stability Study. J Mol Liq 2023. [DOI: 10.1016/j.molliq.2023.121219] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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Bedair MA, Abuelela AM, Alshareef M, Owda M, Eliwa EM. Ethyl ester/acyl hydrazide-based aromatic sulfonamides: facile synthesis, structural characterization, electrochemical measurements and theoretical studies as effective corrosion inhibitors for mild steel in 1.0 M HCl. RSC Adv 2022; 13:186-211. [PMID: 36605653 PMCID: PMC9764999 DOI: 10.1039/d2ra05939h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Accepted: 12/06/2022] [Indexed: 12/24/2022] Open
Abstract
In this research paper, aromatic sulfonamide-derived ethyl ester (p-TSAE) and its acyl hydrazide (p-TSAH) were directly synthesized, characterized, and employed for the first time as prospective anticorrosive agents to protect mild steel in 1.0 M HCl conditions. The corrosion efficiency was probed by electrochemical methods including polarization, impedance, and frequency modulation measurements. Optimal efficiencies of 94% and 92% were detected for the hydrazide and ester, respectively, revealing excellent corrosion inhibition. Moreover, both the hydrazide and ester molecules combat the cathodic and anodic reactions correspondingly in a mixed-type manner. The electron transfer (ET) at the inhibitor/metal interface was evaluated using DFT at the B3LYP/6-31g(d,p) level. Natural bond orbital analysis (NBO) and frontier molecular orbital analysis (FMO) calculations showed superior capabilities of the synthesized inhibitors to easily reallocate charge into the metal surface. However, the hydrazide molecules showed slightly better inhibition efficiency than the ester due to the strong interaction between the lone pairs of the nitrogen atoms and the d-orbitals of the metal. The chemical hardness of the hydrazide and ester are 2.507 and 2.511 eV, respectively, in good accordance with the recorded electrochemical inhibition efficiencies for both molecules. Good and straightforward correlations between the experiments and calculations are obtained.
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Affiliation(s)
- Mahmoud A. Bedair
- Department of Chemistry, Faculty of Science (Men's Campus), Al-Azhar UniversityNasr City 11884CairoEgypt,College of Science and Arts, University of BishaP.O. Box 101Al-Namas 61977Saudi Arabia
| | - Ahmed M. Abuelela
- Department of Chemistry, Faculty of Science (Men's Campus), Al-Azhar UniversityNasr City 11884CairoEgypt
| | - Mubark Alshareef
- Department of Chemistry, Faculty of Applied Science, Umm Al Qura UniversityMakkah 24230Saudi Arabia
| | - Medhat Owda
- Department of Chemistry, Faculty of Science (Men's Campus), Al-Azhar UniversityNasr City 11884CairoEgypt
| | - Essam M. Eliwa
- Department of Chemistry, Faculty of Science (Men's Campus), Al-Azhar UniversityNasr City 11884CairoEgypt
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Bedair MA, Elaryian HM, Gad ES, Alshareef M, Bedair AH, Aboushahba RM, Fouda AEAS. Insights into the adsorption and corrosion inhibition properties of newly synthesized diazinyl derivatives for mild steel in hydrochloric acid: synthesis, electrochemical, SRB biological resistivity and quantum chemical calculations. RSC Adv 2022; 13:478-498. [PMID: 36605641 PMCID: PMC9772863 DOI: 10.1039/d2ra06574f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Accepted: 12/06/2022] [Indexed: 12/24/2022] Open
Abstract
Two azo derivatives, 4-((4-hydroxy-3-((4-oxo-2-thioxothiazolidin-5-ylidene)methyl)phenyl) diazinyl) benzenesulfonic acid (TODB) and 4-((3-((4,4-dimethyl-2,6-dioxocyclohexylidene) methyl)-4-hydroxyphenyl)diazinyl) benzenesulfonic acid (DODB) were synthesized and characterized using Fourier-transform infrared spectroscopy (FTIR), proton nuclear magnetic resonance (1H-NMR) and mass spectral studies. Gravimetric methods, potentiodynamic polarization (PDP), electrochemical impedance spectroscopy (EIS), electrochemical frequency modulation (EFM) techniques and inductive coupled plasma-optical emission spectroscopy were used to verify the above two compounds' ability to operate as mild steel (MS) corrosion inhibitors in 1 M HCl. Tafel data suggest that TODB and DODB have mixed-type characteristics, and EIS findings demonstrate that increasing their concentration not only alters the charge transfer (R ct) of mild steel from 6.88 Ω cm2 to 112.9 Ω cm2 but also changes the capacitance of the adsorbed double layer (C dl) from 225.36 to 348.36 μF cm-2. At 7.5 × 10-4 M concentration, the azo derivatives showed the highest corrosion inhibition of 94.9% and 93.6%. The inhibitory molecule adsorption on the metal substrate followed the Langmuir isotherm. The thermodynamic activation functions of the dissolution process were also calculated as a function of inhibitor concentration. UV-vis, scanning electron microscopy (SEM), and energy dispersive X-ray spectroscopy (EDX) techniques were used to confirm the adsorption phenomenon. The quantum chemical parameters, inductively coupled plasma atomic emission spectroscopy (ICPE) measurements, and the anti-bacterial effect of these new derivatives against sulfate-reducing bacteria (SRB) were also investigated. Taken together, the acquired results demonstrate that these compounds can create an appropriate preventing surface and regulate the corrosion rate.
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Affiliation(s)
- Mahmoud A. Bedair
- Department of Chemistry, Faculty of Science (Men's Campus), Al-Azhar UniversityNasr City 11884CairoEgypt,College of Science and Arts, University of BishaP.O. Box 101Al-Namas 61977Saudi Arabia
| | - Hani M. Elaryian
- Department of Chemistry, Faculty of Science (Men's Campus), Al-Azhar UniversityNasr City 11884CairoEgypt,Zohr Gas Field, Belayim Petroleum CompanyNasr City 7074CairoEgypt
| | - Ehab S. Gad
- Department of Chemistry, Faculty of Science (Men's Campus), Al-Azhar UniversityNasr City 11884CairoEgypt,Chemistry Department, College of Science and Arts, Jouf UniversitySaudi Arabia
| | - Mubark Alshareef
- Department of Chemistry, Faculty of Applied Science, Umm Al Qura UniversityMakkah 24230Saudi Arabia
| | - Ahmed H. Bedair
- Department of Chemistry, Faculty of Science (Men's Campus), Al-Azhar UniversityNasr City 11884CairoEgypt
| | - Rabab M. Aboushahba
- Department of Chemistry, Faculty of Science (Girl's Branch), Al-Azhar UniversityNasr City 11574CairoEgypt
| | - Abd El-Aziz S. Fouda
- Department of Chemistry, Faculty of Science, Mansoura UniversityMansoura-35516Egypt
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Synthesis, Characterization, Thermodynamic Analysis and Quantum Chemical Approach of Branched N, N′-bis(p-hydroxybenzoyl)-Based Propanediamine and Triethylenetetramine for Carbon Steel Corrosion Inhibition in Hydrochloric Acid Medium. ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING 2022. [DOI: 10.1007/s13369-022-07520-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
AbstractThe influence of branched N, N′-bis(p-hydroxybenzoyl) containing propylenediamine (PDA) and triethylenetetramine (TETA) composites for corrosion inhibition of carbon steel in acidic solution (1 M HCl) was investigated using several quantum chemical, electrochemical impedance spectroscopy and potentiodynamic polarization as electrochemical techniques. The investigated molecules were posteriorly characterized by proton nuclear magnetic resonance (1H NMR) and Fourier transform infrared spectroscopy (FTIR) while the surfaces of carbon steel test coupons were characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM) techniques. The obtained results revealed that the two amino compounds, N, N′-bis(p-hydroxybenzoyl) propanediamine (N, N′-HBPDA) and N, N′-bis(p-hydroxybenzoyl) triethylenetetramine (N, N′-HBTETA), have significant efficiency toward steel corrosion attack and its inhibition performance was significantly boosted by increasing concentration of di- and tetramine containing inhibitors. The two inhibitors achieved a maximum corrosion inhibition efficiency of 99.1% as indicated from polarization measurements. The isotherm feature of Langmuir adsorption appeared to be proper factor for associating the experimental gains with an applicable mechanism of inhibition process. The free energy ∆Gads was calculated to be − 27.5, 29.1 kJ/mol based on the adsorption isotherm model, indicating physical adsorption on the carbon steel surface. Further, images of the morphological analysis exhibited various features of attack owing to the aggressive medium and the employed concentration of the inhibitor. These synthesized amines supplied many favorable scores in the fabrication of functional mixed-type inhibitors. The computational studies reveal that N, N′-HBPDA and N, N′-HBTETA molecules could absorb via several lone pairs and π clouds, confirming their ability to be good corrosion inhibitors.
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Novel coumarin-buta-1,3-diene conjugated donor-acceptor systems as corrosion inhibitors for mild steel in 1.0 M HCl: Synthesis, electrochemical, computational and SRB biological resistivity. INORG CHEM COMMUN 2022. [DOI: 10.1016/j.inoche.2022.110304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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Abdelshafeek KA, Abdallah WE, Elsayed WM, Eladawy HA, El-Shamy AM. Vicia faba peel extracts bearing fatty acids moieties as a cost-effective and green corrosion inhibitor for mild steel in marine water: computational and electrochemical studies. Sci Rep 2022; 12:20611. [PMID: 36446843 PMCID: PMC9708655 DOI: 10.1038/s41598-022-24793-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2022] [Accepted: 11/21/2022] [Indexed: 12/03/2022] Open
Abstract
The goal of this research is to determine what chemicals are present in two different extracts (hexane and acetone) of Vicia faba (family Fabaceae, VF) peels and evaluate their effectiveness as a corrosion inhibitor on mild steel in a saline media containing 3.5% sodium chloride. Gas chromatography-mass spectrometry (GC/MS) was used to determine the composition of various extracts. It was determined that fourteen different chemicals were present in the hexane extract, the most prominent of which were octacosane, tetrasodium tetracontane, palmitic acid, and ethyl palmitate. Heptacosane, lauric acid, myristic acid, ethyl palmitate, and methyl stearate were some of the 13 chemicals found in the acetone extract. Using open circuit potential, potentiodynamic polarisation, and electrochemical impedance spectroscopic techniques, we can approximate the inhibitory effects of (VF) extracts on mild steel. The most effective inhibitory concentrations were found to be 200 ppm for both the hexane and acetone extracts (97.84% for the hexane extract and 88.67% for the acetone extract). Evaluation experiments were conducted at 298 K, with a 3.5% (wt/v) NaCl content and a flow velocity of about 250 rpm. Langmuir adsorption isotherm shows that the two extracts function as a mixed-type inhibitor in nature. Docking models were used to investigate the putative mechanism of corrosion inhibition, and GC/MS was used to identify the major and secondary components of the two extracts. Surface roughness values were calculated after analyzing the morphology of the metal's surface with and without (VF) using a scanning electron microscope (SEM). The results showed that throughout the surface of the mild steel, a thick adsorbate layer was formed. Quantum chemical calculations conducted on the two extracts as part of the theoretical research of quantum chemical calculation demonstrated a connection between the experimental analysis results and the theoretical study of the major chemical components.
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Affiliation(s)
- Khaled A. Abdelshafeek
- grid.419725.c0000 0001 2151 8157Pharmaceutical Industries Division, Chemistry of Medicinal Plants Dept., National Research Center, El-Bohouth St. 33, Dokki, Giza, 12622 Egypt
| | - Walid E. Abdallah
- grid.419725.c0000 0001 2151 8157Pharmaceutical Industries Division, Chemistry of Medicinal Plants Dept., National Research Center, El-Bohouth St. 33, Dokki, Giza, 12622 Egypt
| | - Wael M. Elsayed
- grid.419725.c0000 0001 2151 8157Pharmaceutical Industries Division, Chemistry of Medicinal Plants Dept., National Research Center, El-Bohouth St. 33, Dokki, Giza, 12622 Egypt
| | - Hassan A. Eladawy
- grid.411303.40000 0001 2155 6022Chemistry Department, Faculty of Science, Al-Azhar University, Cairo, Egypt
| | - A. M. El-Shamy
- grid.419725.c0000 0001 2151 8157Physical Chemistry Department, Electrochemistry and Corrosion Lab., National Research Centre, El-Bohouth St. 33, Dokki, Giza, 12622 Egypt
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Yousif QA, Majeed MN, Bedair MA. Surface protection against corrosion of Ni turbine blades by electrophoretic deposition of MnO 2, TiO 2 and TiO 2-C nanocoating. RSC Adv 2022; 12:33725-33736. [PMID: 36505697 PMCID: PMC9685372 DOI: 10.1039/d2ra06949k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Accepted: 11/21/2022] [Indexed: 11/25/2022] Open
Abstract
The turbine blades of turbochargers are corroded after being cleaned with water in the presence of gasses produced during the combustion of heavy fuel. For that, manganese oxide (MnO2), titanium dioxide (TiO2), and titanium oxide-graphene (TiO2-C) nanomaterials have been coated on the nickel alloy, which is the composition of turbine blades, by the electrophoretic deposition technique for protection against the corrosion process. The anticorrosion performance of nanomaterial coatings has been investigated using electrochemical methods such as open circuit potential, potentiodynamic, electrochemical impedance, and linear polarization resistance in a 1 M H2SO4 solution saturated with carbon dioxide. The corrosion rate of nanomaterial-coated Ni-alloy was lower than bare alloy, and potential corrosion increased from -0.486 V for uncoated Ni-alloy to -0.252 V versus saturated calomel electrode for nanomaterial coated Ni-alloy electrodes. Electrochemical measurements show that TiO2 coated Ni-alloy corrosion has good protective qualities, with an efficiency of 99.91% at 0.146 mA cm2 current density in sulfuric acid media. The findings of this study clearly show that TiO2 has a high potential to prevent nickel alloy turbine blades from corrosion in acidic media. Furthermore, the surface morphologies have revealed that TiO2 and MnO2 coatings might successfully block an acid assault due to the high adhesion of the protective layer on the nickel alloy surface. The use of X-ray diffraction (XRD) enhanced the various measures used to determine and study the composition of the alloy surface's protective coating.
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Affiliation(s)
- Qahtan. A. Yousif
- University of Al-Qadisiyah, College of Engineering, Department of Materials EngineeringIraq
| | - Mohammad N. Majeed
- Electric Power Generation Department of Kufa Cement Plant/Processing and Laboratory ResearchIraq
| | - Mahmoud A. Bedair
- College of Science and Arts, University of BishaP.O. Box 101Al-Namas 61977Saudi Arabia,Department of Chemistry, Faculty of Science (Men's Campus), Al-Azhar UniversityNasr City 11884CairoEgypt
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Elaryian HM, Bedair MA, Bedair AH, Aboushahba RM, Fouda AEAS. Corrosion mitigation for steel in acid environment using novel p-phenylenediamine and benzidine coumarin derivatives: synthesis, electrochemical, computational and SRB biological resistivity. RSC Adv 2022; 12:29350-29374. [PMID: 36320746 PMCID: PMC9558558 DOI: 10.1039/d2ra05803k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Accepted: 10/03/2022] [Indexed: 11/05/2022] Open
Abstract
Three novel p-phenylenediamine and benzidine coumarin derivatives were synthetized, namely: 4,4'-((((1,4-phenylenebis(azaneylylidene))bis(ethan-1-yl-1-ylidene))bis(2-oxo-2H-chromene-3,6-diyl))bis(diazene-2,1-diyl))dibenzenesulfonic acid (PhODB), 4,4'-(((-([1,1'-biphenyl]-4,4'-diylbis(azaneylylidene))bis(ethan-1-yl-1-ylidene))bis(2-oxo-2H-chromene-3,6-diyl))bis(diazene-2,1-diyl))dibenzenesulfonic acid (BODB) and 4,4'-(((-((3,3'-dimethoxy-[1,1'-biphenyl]-4,4'-diyl)bis(azaneylylidene))bis(ethan-1-yl-1-ylidene))bis(2-oxo-2H-chromene-3,6-iyl))bis(diazene-2,1-diyl))dibenzenesulfonic acid (DODB). Their chemical structures were proved by performing Fourier-transform infrared spectroscopy, proton nuclear magnetic resonance and mass spectrometry analysis. The synthesized p-phenylenediamine and benzidine coumarin derivatives were tested as corrosion inhibitors for mild steel (MS) in 1 M HCl solution using weight loss, electrochemical, morphological, and theoretical studies. The compound 3,3'-dimethoxy benzidine coumarin derivative (DODB) was proved to give the highest efficiency with 94.98% obtained from weight loss measurements. These compounds are mixed inhibitors, as seen by the polarization curves. Impedance diagrams showed that when the concentration of these derivatives rose, the double-layer capacitance fell and the charge transfer resistance increased. Calculated thermodynamic parameters were computed and the mechanism of adsorption was also studied for the synthesized p-phenylenediamine and benzidine coumarin derivatives. The ability of the synthesized derivatives to protect the surface against corrosion was investigated by scanning electron microscope (SEM), UV-visible spectroscopy and energy dispersive X-ray spectroscopy (EDX). Theoretical chemical calculations (DFT) and biological resistivity (SRB) were investigated.
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Affiliation(s)
- Hani M. Elaryian
- Department of Chemistry, Faculty of Science (Men's Campus), Al-Azhar UniversityNasr City 11884CairoEgypt,Zohr Gas Field, Belayim Petroleum CompanyNasr City 7074CairoEgypt
| | - Mahmoud A. Bedair
- Department of Chemistry, Faculty of Science (Men's Campus), Al-Azhar UniversityNasr City 11884CairoEgypt,College of Science and Arts, University of BishaP.O. Box 101Al-Namas 61977Saudi Arabia
| | - Ahmed H. Bedair
- Department of Chemistry, Faculty of Science (Men's Campus), Al-Azhar UniversityNasr City 11884CairoEgypt
| | - Rabab M. Aboushahba
- Department of Chemistry, Faculty of Science (Girls' Branch), Al-Azhar University, Nasr City 11574CairoEgypt
| | - Abd El-Aziz S. Fouda
- Department of Chemistry, Faculty of Science, Mansoura UniversityMansoura-35516Egypt
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Dagdag O, Haldhar R, Kim SC, Safi ZS, Wazzan N, Mkadmh AM, Berisha A, Berdimurodov E, Jodeh S, Nwanna EE, Akpan ED, Ebenso EE. Synthesis, physicochemical properties, theoretical and electrochemical studies of tetraglycidyl methylenedianiline. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.133508] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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20
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Daoudi W, El Aatiaoui A, Falil N, Azzouzi M, Berisha A, Olasunkanmi LO, Dagdag O, Ebenso EE, Koudad M, Aouinti A, Loutou M, Oussaid A. Essential oil of Dysphania ambrosioides as a green corrosion inhibitor for mild steel in HCl solution. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.119839] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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21
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Performance assessment by experimental and Theoretical approaches of newly synthetized benzyl amide derivatives as corrosion inhibitors for carbon steel in 1.0 M hydrochloric acid environment. INORG CHEM COMMUN 2022. [DOI: 10.1016/j.inoche.2022.109758] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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22
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Sun X, Qiang Y, Hou B, Zhu H, Tian H. Cabbage extract as an eco-friendly corrosion inhibitor for X70 steel in hydrochloric acid medium. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.119733] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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23
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Majeed M, Yousif QA, Bedair MA. Study of the Corrosion of Nickel-Chromium Alloy in an Acidic Solution Protected by Nickel Nanoparticles. ACS OMEGA 2022; 7:29850-29857. [PMID: 36061690 PMCID: PMC9434768 DOI: 10.1021/acsomega.2c02679] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Accepted: 08/09/2022] [Indexed: 05/17/2023]
Abstract
This study uses nickel nanoparticles coated on the nickel-chromium (Ni-Cr) alloy by the electrodeposition technique to protect the alloy against corrosion. An open-circuit potential and potentiodynamic and linear polarization resistance in a 1 M H2SO4 solution saturated with carbon dioxide were used to study the anticorrosion performance of nanoparticle coatings. When coated with nanomaterials, the corrosion rate of Ni-Cr alloy was lower than when it was bare, and the potential for corrosion increased from -0.433 V for uncoated Ni-Cr alloy to -0.103 V when the electrodes were exposed to saturated calomel. Electrochemical experiments show that nickel-coated Ni-Cr alloy corrosion in sulfuric acid media has high protective characteristics, with an efficiency of 83.69% at 0.165 mA/cm2 current density when pH = 1 is used. As demonstrated by the results of this research, the nickel-chromium alloy can be protected from corrosion in acidic media by a low-acidity bath coating layer. Surface morphologies have shown that coatings at different acidic scales may be able to resist an acid attack because of their excellent adherence to the nickel-chromium alloy surface. Measures for determining and studying the composition of the alloy surface's protective covering were improved using X-ray diffraction (XRD).
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Affiliation(s)
- Mohammad
N. Majeed
- College
of Education, Department of Chemistry, University
of Al-Qadisiyah, Al Diwaniyah 58001, Iraq
| | - Qahtan. A. Yousif
- College
of Engineering, Department of Materials Engineering, University of Al-Qadisiyah, Al
Diwaniyah 58001, Iraq
| | - Mahmoud A. Bedair
- College
of Science and arts, University of Bisha, P.O. Box 101, Al-Namas 61977, Saudi Arabia
- Department
of Chemistry, Faculty of Science (Men’s Campus), Al-Azhar University, Nasr City, 11884 Cairo, Egypt
- , ,
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24
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Performance of cross-linked polymers as a potential anticorrosive coating for low carbon steel in acidic condition: Experimental and computational studies. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.119384] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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25
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Enhancement corrosion resistance of mild steel in 15% HCl solution by a novel bio-based polyurethane for oil well acidizing. J IND ENG CHEM 2022. [DOI: 10.1016/j.jiec.2022.06.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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26
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Ashmawy AM, Said R, Naguib IA, Yao B, Bedair MA. Anticorrosion Study for Brass Alloys in Heat Exchangers during Acid Cleaning Using Novel Gemini Surfactants Based on Benzalkonium Tetrafluoroborate. ACS OMEGA 2022; 7:17849-17860. [PMID: 35664595 PMCID: PMC9161247 DOI: 10.1021/acsomega.2c01119] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Accepted: 05/12/2022] [Indexed: 05/17/2023]
Abstract
For a variety of applications, the brass alloy has been utilized to replace titanium tubes in heat exchangers. Copper alloys' high corrosion rate during the acid cleaning procedure remains a significant concern. To inhibit the corrosion of brass alloys, we prepared two novel gemini surfactants (GSs), N 1,N 3-dibenzyl-N 1,N 1,N 3,N 3-tetramethylpropane-1,3-diaminium tetrafluoroborate (I H) and N 1,N 1,N 3,N 3-tetramethyl-N 1,N 3-bis (4-methyl benzyl) propane-1,3-diaminium tetrafluoroborate (I Me), and they were characterized using Fourier transform infrared spectroscopy and 1H nuclear magnetic resonance spectroscopy. Their inhibition performance against corrosion of brass alloys in 1 M HCl was studied using electrochemical techniques including potentiodynamic polarization (PP), electrochemical impedance spectroscopy, and electrochemical frequency modulation. The inhibition effect of the synthesized compounds was high, and it increased as the inhibitor's concentration was increased. The maximum level of inhibition efficiency was achieved at an inhibitor concentration of 100 ppm, reaching 96.42% according to PP measurements. From Langmuir data, the mechanisms of adsorption of the two GSs on the surface of copper was found to be physisorption and chemisorption adsorption. X-ray photoelectron spectroscopy and scanning electron microscopy show that the addition of the two compounds lowers the dissolution of brass ions in the corrosive solution and forms a protective layer on the surface of the brass.
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Affiliation(s)
- Ashraf M. Ashmawy
- Department of Chemistry,
Faculty of Science (Men’s Campus), Al-Azhar University, Nasr City 11884, Cairo, Egypt
- ,
| | - Ragab Said
- Department of Pharmaceutical Analytical Chemistry, Faculty
of Pharmacy, Al-Azhar University, Nasr City 11751, Cairo, Egypt
- Pharmaceutical
Chemistry Department, Faculty of Pharmacy, Heliopolis University for Sustainable Development, Cairo, Desert Road, Belbeis 11785, Cairo, Egypt
| | - Ibrahim A. Naguib
- Department of Pharmaceutical
Chemistry, College of Pharmacy, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia
| | - Bo Yao
- Chemical and Materials Engineering Department,
Faculty of Engineering, University of Alberta, Edmonton T6G 2R3, Canada
| | - Mahmoud A. Bedair
- Department of Chemistry,
Faculty of Science (Men’s Campus), Al-Azhar University, Nasr City 11884, Cairo, Egypt
- College of Science and Arts, University of Bisha, P.O. Box 101, Al-Namas 61977, Saudi
Arabia
- , ,
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27
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Zakaria K, Abbas MA, Bedair MA. Herbal expired drug bearing glycosides and polysaccharides moieties as green and cost-effective oilfield corrosion inhibitor: Electrochemical and computational studies. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.118689] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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28
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Song Z, Cai H, Liu Q, Jiang L, Chu H. Performance of corrosion inhibitor extracted from enzymatic hydrolysate of waste platanus acerifolia leaves. J IND ENG CHEM 2022. [DOI: 10.1016/j.jiec.2022.04.027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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29
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In Silico Approaches for Some Sulfa Drugs as Eco-Friendly Corrosion Inhibitors of Iron in Aqueous Medium. LUBRICANTS 2022. [DOI: 10.3390/lubricants10030043] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
This paper addresses the prediction of the adsorption behavior as well as the inhibition capacity of non-toxic sulfonamide-based molecules, also called sulfa drugs, on the surface of mild steel. The study of the electronic structure was investigated through quantum chemical calculations using the density functional theory method (DFT) and the direct interaction of inhibitors with the iron (Fe) metal surface was predicted using the multiple probability Monte Carlo simulations (MC). Then, the examination of the solubility and the environmental toxicity was confirmed using a chemical database modeling environment website. It was shown that the presence of substituents containing heteroatoms able to release electrons consequently increased the electron density in the lowest unoccupied and highest occupied molecular orbitals (LUMO and HOMO), which allowed a good interaction between the inhibitors and the steel surface. The high values of EHOMO imply an ability to donate electrons while the low values of ELUMO are related to the ability to accept electrons thus allowing good adsorption of the inhibitor molecules on the steel surface. Molecular dynamics simulations revealed that all sulfonamide molecules adsorb flat on the metal surface conforming to the highly protective Fe (1 1 0) surface. The results obtained from the quantum chemistry and molecular dynamics studies are consistent and reveal that the order of effectiveness of the sulfonamide compounds is P7 > P5 > P6 > P1 > P2 > P3 > P4.
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Experimental and computational studies of the influence of non-ionic surfactants with coumarin moiety as corrosion inhibitors for carbon steel in 1.0 M HCl. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2021.118445] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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Melhi S, Bedair MA, Alosaimi EH, Younes AAO, El-Shwiniy WH, Abuelela AM. Effective corrosion inhibition of mild steel in hydrochloric acid by newly synthesized Schiff base nano Co( ii) and Cr( iii) complexes: spectral, thermal, electrochemical and DFT (FMO, NBO) studies. RSC Adv 2022; 12:32488-32507. [PMID: 36425733 PMCID: PMC9661184 DOI: 10.1039/d2ra06571a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Accepted: 11/07/2022] [Indexed: 11/16/2022] Open
Abstract
Two new cobalt(ii) and chromium(iii) complexes were synthesized and characterized by FT-IR, 1HNMR, UV, elemental analysis, TGA, conductivity, XRD, SEM, and magnetic susceptibility measurements. Structural analysis revealed a bi-dentate chelation and octahedral geometry for the synthesized complexes. The optical band gap of the Co(ii)-L and Cr(iii)-L complexes was found to be 3.00 and 3.25 eV, respectively revealing semiconducting properties. The X-ray diffraction patterns showed nano-crystalline particles for the obtained complexes. In addition, the synthesized metal complexes were examined as corrosion inhibitors for mild steel in HCl solution. The electrochemical investigations showed a maximum inhibition efficiency of 96.60% for Co(ii)-L and 95.45% for Cr(iii)-L where both complexes acted as mixed-type inhibitors. Frontier Molecular orbital (FMO) and Natural bond orbital (NBO) computations showed good tendency of the ligand to donate electrons to the metal through nitrogen atoms while the resultant complexes tended to donate electrons to mild steel more effectively through oxygen atoms and phenyl groups. A comparison between experimental and theoretical findings was considered through the discussion. Two Co(ii) and Cr(iii) complexes were synthesized, characterized and examined as corrosion inhibitors. The electrochemical data showed high inhibition efficiencies with mixed-type behavior. FMO and NBO were considered for the computational analysis.![]()
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Affiliation(s)
- Saad Melhi
- Department of Chemistry, College of Science, University of Bisha, P.O. Box 511, Bisha 61922, Saudi Arabia
| | - Mahmoud A. Bedair
- College of Science and Arts, University of Bisha, P.O. Box 101, Al-Namas 61977, Saudi Arabia
- Department of Chemistry, Faculty of Science (Men's Campus), Al-Azhar University, Nasr City 11884, Cairo, Egypt
| | - Eid H. Alosaimi
- Department of Chemistry, College of Science, University of Bisha, P.O. Box 511, Bisha 61922, Saudi Arabia
| | - Ayman A. O. Younes
- Department of Chemistry, College of Science, University of Bisha, P.O. Box 511, Bisha 61922, Saudi Arabia
| | - Walaa H. El-Shwiniy
- Department of Chemistry, College of Science, University of Bisha, P.O. Box 511, Bisha 61922, Saudi Arabia
- Department of Chemistry, Faculty of Science, Zagazig University, Zagazig 44519, Egypt
| | - Ahmed M. Abuelela
- Department of Chemistry, Faculty of Science (Men's Campus), Al-Azhar University, Nasr City 11884, Cairo, Egypt
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