Results in Surfaces and Interfaces, Journal Year: 2024, Volume and Issue: unknown, P. 100374 - 100374
Published: Dec. 1, 2024
Language: Английский
Journal of the Taiwan Institute of Chemical Engineers, Journal Year: 2025, Volume and Issue: 169, P. 105955 - 105955
Published: Jan. 19, 2025
Language: Английский
Citations
6
RSC Advances, Journal Year: 2025, Volume and Issue: 15(2), P. 924 - 937
Published: Jan. 1, 2025
Mild steel provides strength to various building and industrial materials but it is badly affected by corrosion. In the present study, we investigate efficacy of Rumex nepalensis, a plant-based green corrosion inhibitor minimize mild in 1 M H2SO4 solution. Weight loss, surface coverage, inhibition efficiency, rate measurements were evaluated for concentrations time intervals. nepalensis was found be 98.35% efficient preventing from acid forming barrier that reduces interaction between acidic environment, further validated UV-Vis contact angle investigations. The scanning electron microscopy images demonstrated inhibitor's protective effect, showing smoother surface. These investigations show significantly improves steel's resistance, offering immediate long-term protection environments, even at deficient concentrations. It shows promise as an effective natural merits consideration future applications.
Language: Английский
Citations
1
Langmuir, Journal Year: 2025, Volume and Issue: unknown
Published: Jan. 27, 2025
One of the successful techniques developed for inhibition metal corrosion is utilization phytochemicals from plant extracts as inhibitors. Theoretical studies are utilized to predict how organic components behave on surfaces and can pave way development synthesis innovative, efficient However, atomic-level insights into mechanisms these green still needed. In this paper, interactions three active found in aqueous Peganum harmala extract (harmol, vasicinone, harmalol) with Fe(110) surface theoretically investigated using density functional theory (DFT) atomistic molecular dynamics (MD) simulations. Several analyses quantities related adsorption, such adsorption energy, partial states, Bader charge, charge difference, electron localization function, described detail. Both DFT calculations MD simulations reveal that molecules favor a lateral configuration, π-back-donation being dominant mechanism their onto Fe surface. The results indicate polycyclic heteroaromatic compounds significantly affect This highlights fact effectiveness inhibitors closely tied structure.
Language: Английский
Citations
1
Colloids and Surfaces A Physicochemical and Engineering Aspects, Journal Year: 2024, Volume and Issue: unknown, P. 135555 - 135555
Published: Oct. 1, 2024
Language: Английский
Citations
5
International Journal of Electrochemical Science, Journal Year: 2025, Volume and Issue: unknown, P. 100936 - 100936
Published: Jan. 1, 2025
Language: Английский
Citations
0
Osmaniye Korkut Ata Üniversitesi Fen Bilimleri Enstitüsü Dergisi, Journal Year: 2025, Volume and Issue: 8(1), P. 472 - 489
Published: Jan. 15, 2025
Corrosion, degradation of materials due to environmental chemical reactions, poses significant challenges across various industries. This study emphasized the importance Density Functional Theory (DFT) in understanding corrosion mechanisms and developing effective inhibitors. The role molecules were 1,2-dihydroxybenzene, m-guaiacol, catechin, which investigated via DFT analysis order determine their inhibition performance. Key parameters, including energy gap (∆E), absolute electronegativity (χ), hardness (ɳ), softness (δ), dipole moment, analyzed investigate efficiency. Catechin, with its lowest ∆E, demonstrated enhanced electron-donating capabilities, indicating high Additionally, electrochemical impedance spectroscopy confirmed protection efficiency for these compounds. Despite limitations DFT, such as computational demands need accurate exchange-correlation functionals, advancements methodologies integration experimental data can enhance predictive power. highlights guiding design corrosion-resistant emphasizes interdisciplinary collaboration refine theoretical models validate predictions.
Language: Английский
Citations
0
Scientific Reports, Journal Year: 2025, Volume and Issue: 15(1)
Published: Jan. 24, 2025
This study highlights the challenges in using environmentally friendly corrosion inhibitors a variety of industries by examining effects avocado extract as inhibitor on behavior carbon steel salty formation water (SFW) generated from West Egyptian petroleum fields. A combination weight loss and electrochemical experiments were used to examine properties at different concentrations (20–100 mg L–1). number methods, including scanning electron microscopy (SEM), energy dispersive X-ray (EDAX), UV–Visible analyses employed identify configuration chemical components corroded substrates. The demonstrated highest inhibition efficiency value concentration 100 L−1, exhibiting an inhibitory effectiveness approximately 92.4%. adsorption isotherm has been identified Langmuir type, cathodic-anodic efficiency. addition increases activation oxidation reaction 13.8 1 51.6 kJ mol−1. work offers newly viewpoint for future research prevention extracting effective first time SFW solution.
Language: Английский
Citations
0
Metals, Journal Year: 2025, Volume and Issue: 15(2), P. 195 - 195
Published: Feb. 13, 2025
This work presents a comparative study of five rare earth compounds—Erbium nitrate pentahydrate lll (Er), Neodymium (Nd), Samarium III Nitrate Hexahydrate (Sm), Yterbium Chloride (Yb) and Praseodymium hexahydrate (Pr)—protecting API 5L X70 steel from corrosion in saline medium that uses electrochemical impedance spectroscopy (EIS) polarization curves (CPs) at different concentrations static mode. The results show Erbium is the best inhibitor, containing 50 ppm reaching an inhibition efficiency about 89%, similar result was shown by Sm with IE~87.9%, while other earths (Nd, Yb Pr) showed decrease protection same concentration, since they were below IE~80%. On hand, Langmuir model it possible to describe adsorption process three follows combined physisorption–chemisorption protect metal’s surface. observed free energy, ΔG°ads, reaches −38.7 kJ/mol for Er, −34.4 Nd, −33.6 Pr; whereas have energies −33.9 −35.0 kJ/mol, respectively. Scanning electron microscopy (SEM) atomic force (AFM) further confirmed formation protective film. Their characterization using density functional theory transference charge iron cluster towards metal compounds. produced slightly polarized region interaction Also, found affected magnetic properties surface cluster. Quantum chemical descriptors, such as Pearson’s HSAB (Hard Soft Acids Bases) useful predicting behavior flow electrons between interacting ions.
Language: Английский
Citations
0
Colloids and Surfaces A Physicochemical and Engineering Aspects, Journal Year: 2025, Volume and Issue: unknown, P. 136286 - 136286
Published: Feb. 1, 2025
Language: Английский
Citations
0
Inorganic Chemistry Communications, Journal Year: 2025, Volume and Issue: unknown, P. 114167 - 114167
Published: Feb. 1, 2025
Language: Английский
Citations
0