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Gad SM, Jin Z, Emad S, Vergara JE, Yawas DS, Dagwa IM, Momoh-Bello Omiogbemi I. Potential of rare-earth compounds as anticorrosion pigment for protection of aerospace AA2198-T851 alloy. Heliyon 2023; 9:e14693. [PMID: 37101480 PMCID: PMC10123218 DOI: 10.1016/j.heliyon.2023.e14693] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Revised: 03/11/2023] [Accepted: 03/15/2023] [Indexed: 03/28/2023] Open
Abstract
In this study, the anticorrosion potential of carboxylic compounds; Lanthanum 4-hydroxycinnamate La(4OHCin)3, Cerium 4-hydroxycinnamate Ce(4OHCin)3 and Praseodymium 4-hydroxycinnamate Pr(4OHCin)3 for the protection of Al-Cu-Li alloy was investigated in 3.5% NaCl solution using electrochemical tests (EIS and PDP), scanning electron microscopy (SEM) and X-ray photoelectron spectroscopy (XPS). The findings achieved show a very good correlation between electrochemical responses and surface morphologies of the exposed alloy, indicating a modification of the surface by precipitation of the inhibitor species, leading to effective protection against corrosion. At optimum concentration 200 ppm, the trend of inhibition efficiency η (%) increases in the order Ce(4OHCin)3 93.35% > Pr(4OHCin)3 85.34% > La(4OHCin)3 82.25%. XPS complemented the findings by detecting and providing information about the oxidation states of the protective species.
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Affiliation(s)
- Shedrack Musa Gad
- Corrosion and Protection Centre, School of Materials, University of Manchester, Oxford Road, Manchester, M13 9PL, UK
- Corresponding author.
| | - Zelong Jin
- Corrosion and Protection Centre, School of Materials, University of Manchester, Oxford Road, Manchester, M13 9PL, UK
| | - Seydgholamreza Emad
- Corrosion and Protection Centre, School of Materials, University of Manchester, Oxford Road, Manchester, M13 9PL, UK
| | | | - Danjuma Saleh Yawas
- Shell Professorial Chair, Mechanical Engineering Department, Ahmadu Bello University, Samaru Campus, Community Market, 810211, Zaria, Nigeria
| | - Ishaya Musa Dagwa
- Department of Mechanical Engineering, University of Abuja, Main Campus, Airport Road, P.M.B. 117 Abuja, Nigeria
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Betti N, Al-Amiery AA, Al-Azzawi WK. Experimental and Quantum Chemical Investigations on the Anticorrosion Efficiency of a Nicotinehydrazide Derivative for Mild Steel in HCl. Molecules 2022; 27:molecules27196254. [PMID: 36234791 PMCID: PMC9571654 DOI: 10.3390/molecules27196254] [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: 08/10/2022] [Revised: 08/18/2022] [Accepted: 08/19/2022] [Indexed: 12/05/2022] Open
Abstract
A corrosion inhibitor namely N′-(4-hydroxy-3-methoxybenzylidene) nicotinohydrazide was synthesized and the inhibition efficiency of the investigated inhibitor toward the mild steel corrosion in 1 M HCl was studied. The anticorrosion effect has been investigated by weight loss (WL) techniques and electrochemical analysis includes potentiodynamic polarization (PDP) studies and electrochemical impedance spectroscopy (EIS). The current investigation has demonstrated that the tested inhibitor is suitable in corrosive environment and the inhibitive efficacy up to 97% in 1 M HCl. PDP measurements showed that the nicotinohydrazide is a mixed type inhibitor. EIS measurements showed that an increase in the inhibitory concentration leads to an increase in the charge transfer resistance (Rct) and a decrease in the double-layer capacitance (Cdl). Experimental results for the inhibitory performance of WL methods and electrochemical techniques (PDP and EIS) are in good agreement. The tested inhibitor molecules adsorbed on the surface of mild steel in a hydrochloric acid solution followed Langmuir’s isothermal adsorption. Quantum chemical parameters based on density function theory (DFT) techniques were conducted on oxygen/nitrogen-bearing heterocyclic molecule employed as a corrosion inhibitor for mild steel in HCl to evaluate the correlation between the inhibitor structure and inhibitory performance. The parameters including the energy gap (ΔE), dipole moment (μ), electronegativity (χ), electron affinity (A), global hardness (η), softness (σ), ionization potential (I), the fraction of electrons transferred (ΔN), the highest occupied molecular orbital energy (EHOMO), and the lowest unoccupied molecular orbital energy (ELUMO) were also calculated and were in good agreement with the experimental results.
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Affiliation(s)
- Nadia Betti
- Materials Engineering Department, University of Technology-Iraq, Baghdad 10001, Iraq
| | - Ahmed A. Al-Amiery
- Department of Chemical and Process Engineering, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia (UKM), Bangi 43000, Malaysia
- Energy and Renewable Energies Technology Center, University of Technology-Iraq, Baghdad 10001, Iraq
- Correspondence:
| | - Waleed Khalid Al-Azzawi
- Department of Medical Instruments Engineering Techniques, Al-Farahidi University, Baghdad 10001, Iraq
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Corrosion Inhibition of Mild Steel in Hydrochloric Acid Environment Using Terephthaldehyde Based on Schiff Base: Gravimetric, Thermodynamic, and Computational Studies. Molecules 2022; 27:molecules27154857. [PMID: 35956814 PMCID: PMC9370009 DOI: 10.3390/molecules27154857] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Revised: 07/27/2022] [Accepted: 07/27/2022] [Indexed: 11/16/2022] Open
Abstract
Using traditional weight-loss tests, as well as different electrochemical techniques (potentiodynamic polarization and electrochemical impedance spectroscopy), we investigated the corrosion-inhibition performance of 2,2′-(1,4-phenylenebis(methanylylidene)) bis(N-(3-methoxyphenyl) hydrazinecarbothioamide) (PMBMH) as an inhibitor for mild steel in a 1 M hydrochloric acid solution. The maximum protection efficacy of 0.0005 M of PMBMH was 95%. Due to the creation of a protective adsorption layer instead of the adsorbed H2O molecules and acidic chloride ions, the existence of the investigated inhibitor reduced the corrosion rate and increased the inhibitory efficacy. The inhibition efficiency increased as the inhibitor concentration increased, but it decreased as the temperature increased. The PMBMH adsorption mode followed the Langmuir adsorption isotherm, with high adsorption-inhibition activity. Furthermore, the value of the ∆Gadso indicated that PMBMH contributed to the physical and chemical adsorption onto the mild-steel surface. Moreover, density functional theory (DFT) helped in the calculation of the quantum chemical parameters for finding the correlation between the inhibition activity and the molecular structure. The experimental and theoretical findings in this investigation are in good agreement.
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Li L, Huang T, Lei J, He J, Qu L, Huang P, Zhou W, Li N, Pan F. Robust biomimetic-structural superhydrophobic surface on aluminum alloy. ACS APPLIED MATERIALS & INTERFACES 2015; 7:1449-57. [PMID: 25545550 DOI: 10.1021/am505582j] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
The following facile approach has been developed to prepare a biomimetic-structural superhydrophobic surface with high stabilities and strong resistances on 2024 Al alloy that are robust to harsh environments. First, a simple hydrothermal treatment in a La(NO3)3 aqueous solution was used to fabricate ginkgo-leaf like nanostructures, resulting in a superhydrophilic surface on 2024 Al. Then a low-surface-energy compound, dodecafluoroheptyl-propyl-trimethoxylsilane (Actyflon-G502), was used to modify the superhydrophilic 2024 Al, changing the surface character from superhydrophilicity to superhydrophobicity. The water contact angle (WCA) of such a superhydrophobic surface reaches up to 160°, demonstrating excellent superhydrophobicity. Moreover, the as-prepared superhydrophobic surface shows high stabilities in air-storage, chemical and thermal environments, and has strong resistances to UV irradiation, corrosion, and abrasion. The WCAs of such a surface almost remain unchanged (160°) after storage in air for 80 days, exposure in 250 °C atmosphere for 24 h, and being exposed under UV irradiation for 24 h, are more than 144° whether in acidic or alkali medium, and are more than 150° after 48 h corrosion and after abrasion under 0.98 kPa for 1000 mm length. The remarkable durability of the as-prepared superhydrophobic surface can be attributed to its stable structure and composition, which are due to the existence of lanthanum (hydr)oxides in surface layer. The robustness of the as-prepared superhydrophobic surface to harsh environments will open their much wider applications. The fabricating approach for such robust superhydrophobic surface can be easily extended to other metals and alloys.
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Affiliation(s)
- Lingjie Li
- School of Chemistry and Chemical Engineering, Chongqing University , Chongqing 400044 People's Republic of China
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Al-Amiery AA, Kadhum AAH, Mohamad AB, Junaedi S. A Novel Hydrazinecarbothioamide as a Potential Corrosion Inhibitor for Mild Steel in HCl. MATERIALS (BASEL, SWITZERLAND) 2013; 6:1420-1431. [PMID: 28809218 PMCID: PMC5452315 DOI: 10.3390/ma6041420] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/06/2013] [Revised: 02/15/2013] [Accepted: 03/01/2013] [Indexed: 11/16/2022]
Abstract
2-(1-methyl-4-((E)-(2-methylbenzylidene)amino)-2-phenyl-1H-pyrazol-3(2H)-ylidene)-hydrazineecarbothioamide (HCB) was synthesized as a corrosion inhibitor from the reaction of 4-aminoantipyrine, thiosemicarbazide and 2-methylbenzaldehyde. The corrosion inhibitory effects of HCB on mild steel in 1.0 M HCl were investigated using potentiodynamic polarization (PDP) and electrochemical impedance spectroscopy (EIS). The results showed that HCB inhibited mild steel corrosion in acidic solution and inhibition efficiency increased with an increase in the concentration of the inhibitor. The inhibition efficiency was up to 96.5% at 5.0 mM. Changes in the impedance parameters suggested that HCB adsorbed on the surface of mild steel, leading to the formation of a protective film. The novel corrosion inhibitor synthesized in the present study was characterized using Fourier transform infrared spectroscopy (FTIR) and nuclear magnetic resonance (NMR) spectral data.
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Affiliation(s)
- Ahmed A. Al-Amiery
- Department of Chemical & Process Engineering, Universiti of Kebangsaan Malaysia (UKM), Bangi, Selangor 43000, Malaysia; E-Mails: (A.A.H.K.); ; (S.J.)
- Applied Chemistry Division, Applied Science Department, University of Technology (UOT), Baghdad 10001, Iraq
| | - Abdul Amir H. Kadhum
- Department of Chemical & Process Engineering, Universiti of Kebangsaan Malaysia (UKM), Bangi, Selangor 43000, Malaysia; E-Mails: (A.A.H.K.); ; (S.J.)
| | - Abu Bakar Mohamad
- Department of Chemical & Process Engineering, Universiti of Kebangsaan Malaysia (UKM), Bangi, Selangor 43000, Malaysia; E-Mails: (A.A.H.K.); ; (S.J.)
| | - Sutiana Junaedi
- Department of Chemical & Process Engineering, Universiti of Kebangsaan Malaysia (UKM), Bangi, Selangor 43000, Malaysia; E-Mails: (A.A.H.K.); ; (S.J.)
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Yu H, Chen B, Wu H, Sun X, Li B. Improved electrochemical performance of trivalent-chrome coating on Al 6063 alloy via urea and thiourea addition. Electrochim Acta 2008. [DOI: 10.1016/j.electacta.2008.06.069] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Yu HC, Chen BZ, Shi XC, Wu HY, Li B. EIS investigation of the deposition of trivalent chromium coatings on Al 6063 alloy. J APPL ELECTROCHEM 2008. [DOI: 10.1007/s10800-008-9673-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Sun HH, Wang HW, Chen D, Ma NH, Li XF. Conversion-coating treatment applied toin situTiB2preinforced AlSi-alloy composite for corrosion protection. SURF INTERFACE ANAL 2008. [DOI: 10.1002/sia.2912] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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