Synthesis and Characterization of New Macromolecular Epoxy Resin as an Effective Corrosion Inhibitor for C38 Steel in 1 M HCl Medium: Electrochemical Insights, Surface Morphological and Computational Approaches

Journal of Bio- and Tribo-Corrosion, Journal Year: 2024, Volume and Issue: 10(2)

Published: Feb. 13, 2024

Language: Английский

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Electrochemical, thermodynamic and computational investigation of the use of an expired drug as a sustainable corrosion inhibitor for copper in 0.5 M H2SO4

Materials Chemistry and Physics, Journal Year: 2024, Volume and Issue: 323, P. 129642 - 129642

Published: June 26, 2024

Language: Английский

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Corrosion Inhibitor for Mild Steel in Mixed Hcl and H2so4 Medium: A Study of 1,10-Phenanthroline Derivatives

Published: Jan. 1, 2025

A phenanthroline derivative, [1,2,5]oxadiazolo[3',4':5,6]pyrazino[2,3-f][1,10]phenanthroline (OPP), was synthesized and evaluated for corrosion inhibition on mild steel in a mixed acid solution of 1 mol/L HCl 0.5 H2SO4. OPP achieves 99.53% efficiency at 20 °C sustains above 86% up to 60 °C. The polarization curve shows that reduces current densities less negative potentials, with Ecorr shifting than 85 mV versus the control, indicating primary anodic protection as inhibitor. tenfold increase charge transfer resistance compared measured through EIS, demonstrating it creates substantial challenge electron loss from Fe. SEM AFM confirm alleviates damage surface. adheres Langmuir model chemisorption mode. XPS EDS register OPP-iron complex formations uniform nitrogen distribution respectively, successful adsorption. perseveres around 98% 85% after 13 cycles °C, good stability even high temperatures. Quantum chemical results further suggest strong OPP-steel interactions, low potential localized optimal adsorption geometry robust bonding (-10.59 eV energy).

Language: Английский

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A novel hydrazide-modified silica gel as a promising material for adsorption of methyl orange from aqueous solutions: Experiments and theoretical insights

Results in Surfaces and Interfaces, Journal Year: 2025, Volume and Issue: unknown, P. 100455 - 100455

Published: Feb. 1, 2025

Language: Английский

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Exploratory Experiments Supported by Modeling Approaches for TGEEA New Epoxy Resin as a Contemporary Anti-corrosion Material for C38 Steel in 1.0 M HCl

Journal of Failure Analysis and Prevention, Journal Year: 2023, Volume and Issue: 23(4), P. 1765 - 1781

Published: Aug. 1, 2023

Language: Английский

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4-Benzyl-2-(3-(4-fluorophenyl)-2-oxopropyl)-6-phenyl pyridazin-3(2H)-one as a Carbon Steel Corrosion Inhibitor in an Acidic Environment: Electrochemical, Spectroscopic, Thermodynamic, and Quantum Chemical Assessments

Journal of Bio- and Tribo-Corrosion, Journal Year: 2024, Volume and Issue: 10(3)

Published: June 18, 2024

Language: Английский

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Elucidating the role of novel halogenated hydroquinazolinone derivatives in mitigating copper corrosion in saline conditions: A joint assessment of experimental outcomes and computational analysis

Journal of Molecular Liquids, Journal Year: 2023, Volume and Issue: 390, P. 122966 - 122966

Published: Aug. 30, 2023

Language: Английский

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Exploring sustainable corrosion inhibition of copper in saline environment: An examination of hydroquinazolinones via experimental and ab initio DFT simulations

Arabian Journal of Chemistry, Journal Year: 2024, Volume and Issue: 17(5), P. 105716 - 105716

Published: March 8, 2024

Copper's potential in various applications is constrained due to environmental degradation, particularly high-salinity environments, representing a sustainability concern. Herein, two novel hydroquinazolinones, namely 1-((4-hydroxynaphthalen-1-yl)methyl)-2-phenyl-2,3-dihydroquinazolin-4(1H)-one (DQ-H) and 1-((4-hydroxynaphthalen-1-yl)methyl)-2-(p-tolyl)-2,3-dihydroquinazolin-4(1H)-one (DQ-CH3), were analyzed for their ability inhibit copper corrosion 3.5 % NaCl solution. The compounds, characterized by 1H 13C NMR, evaluated via potentiodynamic polarization curves, electrochemical impedance spectroscopy, weight loss measurements. Comprehensive analyses utilizing scanning electron microscopy, Fourier Transform Infrared, UV–vis spectroscopy have revealed insights into the surface morphology interactive nature of inhibitor molecules with surface. Our findings highlight formation strong, sustainable film on addition thereby exhibiting an enhanced resistance decreased double-layer capacitance. Both DQ-H DQ-CH3 demonstrated considerable inhibition effect, efficiencies 92 94 respectively, illustrating protection. Electrochemical (EIS) results indicated significant increase from 605.7 (blank) 9403 12861 Ω cm2, after DQ-CH3, respectively. Furthermore, adsorption attributes compounds Cu(1 1 1) examined using first-principles density functional theory simulation, revealing several covalent bonds formation. work aims contribute efforts materials science offering corrosion-protective solution that less harmful environment more efficient preserving copper's durability, saline environments.

Language: Английский

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Investigation of a pyridazinone derivative as a corrosion inhibitor for carbon steel in acidic conditions using experimental and theoretical methods

International Journal of Electrochemical Science, Journal Year: 2024, Volume and Issue: 19(9), P. 100732 - 100732

Published: July 22, 2024

The anti-corrosive properties of the newly synthesized compound pyridazinone, especially 2-(3-(4-fluorophenyl)-2-oxopropyl)-4-(3-nitrobenzyl)-6-phenylpyridazin-3(2 H)-one (FOPP), on carbon steel in a 1 M hydrochloric acid solution were thoroughly investigated. We used multiple techniques, including potentiodynamic polarization (PDP), electrochemical impedance spectroscopy (EIS), surface morphology analysis, contact angle measurements, UV–visible spectrometry, and quantum chemical calculations. maximum corrosion inhibition efficiency FOPP was found to be 96.3 % at 10−3 concentration 303 K temperature. PDP studies showed that acts as mixed-type inhibitor with anodic predominance. hydrophobicity metal studied considerable improvement by coating using technique. Scanning electron microscopy (SEM) energy dispersive (EDX) confirm results obtained two methods theoretical chemistry, namely density functional analysis (DFT) molecular dynamics simulation, gain better understanding interactions between ability this adhere iron form protective film.

Language: Английский

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Polypyridyl-based bridging corrosion inhibitors: A critical review on interface and ligands properties

Advances in Colloid and Interface Science, Journal Year: 2025, Volume and Issue: 342, P. 103534 - 103534

Published: April 27, 2025

The ligand characteristics of polypyridyls, primarily bipyridine (bipy), phenanthroline (Phen), terpyridine (Tpy), naphthyridine (NC), and their derivatives, are popular for ability to create stable chelating complexes with metal ions. Because these characteristics, they coordination have been used many purposes. Polypyridyl-based heterocycles widely employed as corrosion inhibitors in the aqueous phase provide long-lasting, consistent efficient protection. unshared nitrogen electron pairs polypyridyl-based significantly coordinate substrates. Corrosion based on polypyridyls increase polarization or charge transfer resistance (Rp Rct) decrease current density (icorr) by blocking active sites. Their adsorption, coordination, chelation thermodynamically advantageous due nature, which results positive entropy change (S > 0). They adhere several isotherms during adsorption metallic surface. review article discusses inhibition potential inhibitors, mechanism challenges opportunities using coating applications also surveyed. significance complexes, regioisomerism, relative location atoms discussed.

Language: Английский

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