Theoretical and experimental evaluation of the anticorrosion properties of new Coumarin's derivatives

Khowdiary, Manal M.; Taha, Nahla A.; Barqawi, Aminah A.; Elhenawy, Ahmed A.; Sheta, Mai; Hassan, Nazly

doi:10.1016/j.aej.2021.12.037

Cited by 9 publications

(4 citation statements)

References 58 publications

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“…There are several adsorption isotherms, such as the Langmuir, Freundlich, and Temkin isotherms that may be used to characterize the connection between the amount of surface coverage and the number of species that have been adsorbed. It was discovered that the adsorptive interaction between two extracts followed the Langmuir isotherm 47 . The Eq.…”

Section: Resultsmentioning

confidence: 99%

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

Abdelshafeek

Abdallah

El‐Sayed

et al. 2022

Sci Rep

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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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Section: Resultsmentioning

confidence: 99%

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

Abdelshafeek

Abdallah

El‐Sayed

et al. 2022

Sci Rep

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“…Even though AO seems to be more efficient as an antioxidant than HERA, their EC 50 values are much higher than those of standard antioxidants in all methods. The antioxidant properties of numerous essential oils have been related to the predominant fatty acids found in AO and HERA [50][51][52][53].…”

Section: Antioxidant Activitymentioning

confidence: 99%

Experimental and Theoretical Investigations of Argania spinosa’s Extracts on the Antioxidant Activity and Mild Steel Corrosion’s Inhibition in 1 M HCl

et al. 2022

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The aim of the present research is the evaluation of the extraction process effect on the chemical composition, the antioxidant activities, and the mild steel corrosion inhibition ability of Argania spinosa’s extracts (alimentary oil (AO) and hexanic extract of roasted almonds (HERA)). The chemical composition revealed that both extracts have the same major compounds: Palmitic, linoleic, and stearic acids, with their order slightly different. Electrochemical impedance spectroscopy (EIS), weight loss measurements, and polarization curves were used to estimate AO and HERA’s mild steel corrosion’s inhibition capacity. Based on these three methods, AO registered, respectively, 81%, 87%, and 87% inhibition efficiency while HERA registered 78%, 84%, and 82% inhibition efficiency. The antioxidant activity of AO and HERA was examined in parallel with standard antioxidants (gallic acid and quercetin) using two assays: DPPH* scavenging assay and ferric reducing antioxidant power assay (FRAP). AO had less EC50 in both techniques (DPPH*: 3559.08 ± 161.75 μg/mL; FRAP 1288.58 ± 169.21 μg/mL) than HERA (DPPH*: 3621.43 ± 316.05 μg/mL; FRAP 1655.86 ± 240.18 μg/mL). Quantum chemical and molecular dynamic studies were employed to suggest the adsorption mechanism.

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“…4,26,27 Corrosion inhibitors are typically added to the acid wash solution to prevent corrosion. 28,29…”

Section: Introductionmentioning

confidence: 99%

“…4,26,27 Corrosion inhibitors are typically added to the acid wash solution to prevent corrosion. 28,29 Almost all corrosion inhibitors are prepared from organic compounds with heteroatoms in their aromatic or cyclic structures. 30 These compounds have a lot of heteroatoms (like N, S, P, and O) and many bonds, which makes it easier for the inhibitor to stick to the surface of the metal.…”

Section: Introductionmentioning

confidence: 99%

Insight into the corrosion mitigation performance of three novel benzimidazole derivatives of amino acids for carbon steel (X56) in 1 M HCl solution

et al. 2023

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Theoretical and experimental evaluation of the anticorrosion properties of new Coumarin's derivatives

Cited by 9 publications

References 58 publications

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

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

Experimental and Theoretical Investigations of Argania spinosa’s Extracts on the Antioxidant Activity and Mild Steel Corrosion’s Inhibition in 1 M HCl

Insight into the corrosion mitigation performance of three novel benzimidazole derivatives of amino acids for carbon steel (X56) in 1 M HCl solution

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