Journal of Alloys and Compounds, Journal Year: 2024, Volume and Issue: unknown, P. 178239 - 178239
Published: Dec. 1, 2024
Language: Английский
Arabian Journal of Chemistry, Journal Year: 2023, Volume and Issue: 17(2), P. 105593 - 105593
Published: Dec. 27, 2023
The corrosion of metals is a major problem in many industrial sectors. To develop sustainable and naturally friendly alternatives to classical inhibitors, the use plant extracts has attracted increasing interest. Plant contain variety bioactive substances, such as polyphenols, which have corrosion-inhibitory properties. are biodegradable pose minimal risk human health ecosystems. Consistent with prevailing research trends this field, study, ability Hedera helix leaf extract (HHLE) protect XC18 steel from 1 M HCl was evaluated. polyphenols present HHLE were identified using HPLC-DAD analysis. weight loss, potentiodynamic polarization (PDP), electrochemical impedance spectroscopy (EIS) measurements examined. Six phenolic compounds detected HHLE. results showed that inhibitory efficiency increased concentration. At 298 K, loss tests demonstrated greatest protection 92.67% for achieved at concentration 1000 mg/L This attributed reduction cathodic currents obstruction active corroding sites. Thermodynamic analysis indicated an endothermic process governed by physisorption, Langmuir adsorption isotherm model highlighted influence both physical chemical mechanisms on process. Scanning electron microscopy (SEM) used confirm presence Density functional theory (DFT) employed carry out quantum chemistry studies two primary components extract: kaempferol (KMP) trans-chalcone (CHL). parameters obtained calculations explore sites interactions between donor acceptor molecules, well interfacial mechanism behavior molecules metal surface.
Language: Английский
Citations
25
Coatings, Journal Year: 2024, Volume and Issue: 14(1), P. 77 - 77
Published: Jan. 5, 2024
The growing interest in eco-friendly alternatives has sparked research into essential oils as corrosion inhibitors, offering an innovative approach. Investigating their unique properties, researchers aim to advance engineering for a sustainable future. Despite promising lab results, the exact mechanism of action is not fully understood, highlighting need further exploration. Using computational modeling, we explored how grape seed oil (GSO) compounds interact with carbon steel (C38) surfaces, unraveling inhibitive properties against corrosion. Employing various simulation methods, such density functional theory (DFT), functional-based tight-binding (DFTB), and molecular dynamics (MD), this study validates experimental findings unveils novel insights underlying mechanisms these interactions. Quantitative analysis quantifies inter- intramolecular synergistic effect suggests that LA@OA promotes charge-transfer process. DFTB calculations reveal parallel adsorption configuration LA OA molecules sufficiently strong form stable layer on Fe surface large negative value Eads (6.74 eV). Experimental results demonstrated inhibition performance GSO extract exhibited notable increase increasing concentrations, reaching higher efficiency 79% at 0.5 g/L GSO. EIS existence inhibitor film increases resistance charge transfer (about 80 Ω cm2 g/L), indicating superior barrier anticorrosion formed film. theoretical validate exceptional provide compelling evidence remarkable ability prevent C38 substrate. offer potential pathways development interestingly foundation understanding field.
Language: Английский
Citations
13
Metals, Journal Year: 2024, Volume and Issue: 14(1), P. 69 - 69
Published: Jan. 6, 2024
Green corrosion inhibitors are gaining recognition for their sustainable, cost-effective, and environmentally friendly nature, along with impressive water solubility high inhibition efficiency. They offer a promising solution to combat issues that plague various industries. However, harness the full potential of these eco-friendly inhibitors, profound understanding development underlying mechanisms is essential. This knowledge key paving way next generation protection materials. Herein, comprehensive study was conducted understand adsorption, efficiency, stability 3-benzoyl-4-hydroxy-2,6-bis(4-methoxyphenyl)-4-phenylcyclohexane-1,1-dicarbonitrile (BMPD). investigated performance BMPD applied carbon steel (CS) in 1 M hydrochloric acid (HCl) solution. The effect examined using weight loss, potentiodynamic polarization (PDP), electrochemical impedance spectroscopy (EIS), theoretical studies. surface morphology also characterized Tafel analysis shows mixed inhibitor. results obtained by indicate inhibitory increases increasing inhibitor concentration. adsorption on CS obeyed Langmuir isotherm. Thermodynamic parameters were calculated discussed. Furthermore, this involved computational compound. Using quantum chemical calculations first-principle simulations, we delved into structural electronic properties as well interfacial between studied molecule iron surface.
Language: Английский
Citations
13
Colloids and Surfaces A Physicochemical and Engineering Aspects, Journal Year: 2024, Volume and Issue: unknown, P. 135376 - 135376
Published: Sept. 1, 2024
Language: Английский
Citations
10
Inorganic Chemistry Communications, Journal Year: 2025, Volume and Issue: 176, P. 114236 - 114236
Published: March 5, 2025
Language: Английский
Citations
1
ACS Omega, Journal Year: 2024, Volume and Issue: 9(13), P. 15015 - 15029
Published: March 19, 2024
The effectiveness of a copper(II) complex with Schiff base derived from 2-amino-4-phenyl-5-methylthiazole and salicylaldehyde (APMS) as corrosion inhibitor for XC18 steel in an HCl solution was investigated. Experimental findings indicated slight negative correlation between inhibition efficiencies 1 M temperature but positive both concentration immersion time, respectively. weight loss measurement revealed that APMS achieved maximum rate 92.07% at 303 K. A fitting analysis demonstrated adheres to the Langmuir adsorption isotherm. electrochemical results enhanced inhibitive performance APMS, efficiency increasing concentrations increased, ultimately reaching peak 94.47% 5 × 10–3 mol L–1. Potentiodynamic polarization measurements acted mixed-type without affecting mechanism. Scanning electron microscopy investigations metal surfaces corroborated presence adsorbed organic layer. Advanced theoretical calculations utilizing density functional theory first-principles density-functional tight-binding were conducted gain insights into behavior on surface. derives its advantages crucial inter- intramolecular interactions, resulting formation resilient layer, line experimental findings. It is found APMS-based exhibits significant synergistic effect. current study offers design direction enhancing structural characteristics complexes, laying groundwork multifunctional frameworks minimize rates considerations real-world use cost-efficiency. ability replace harmful, expensive constituents sustainable, cost-effective alternatives represents outcome this study.
Language: Английский
Citations
8
Inorganic Chemistry Communications, Journal Year: 2024, Volume and Issue: 167, P. 112691 - 112691
Published: June 5, 2024
Language: Английский
Citations
8
Journal of Molecular Structure, Journal Year: 2024, Volume and Issue: 1315, P. 138861 - 138861
Published: June 4, 2024
Language: Английский
Citations
7
Environmental Science and Pollution Research, Journal Year: 2024, Volume and Issue: unknown
Published: April 26, 2024
Language: Английский
Citations
4
Materials Chemistry and Physics, Journal Year: 2024, Volume and Issue: unknown, P. 130042 - 130042
Published: Oct. 1, 2024
Language: Английский
Citations
4