A novel corrosion inhibitor for copper in sulfuric acid media: Complexation of iodide ions with Benincasa Hispida leaf extract

Colloids and Surfaces A Physicochemical and Engineering Aspects, Год журнала: 2024, Номер 705, С. 135710 - 135710

Опубликована: Ноя. 5, 2024

Язык: Английский

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Green nanoparticles for advanced corrosion protection: Current perspectives and future prospects

Applied Surface Science Advances, Год журнала: 2024, Номер 21, С. 100605 - 100605

Опубликована: Апрель 30, 2024

The article discusses the function of green nanoparticles in preventing corrosion different alloys such as copper, zinc, steel, and aluminium alloys. Green are characterized by their environmentally friendly sustainable production methods, which emphasize using natural materials. Environmental issues have long been linked to traditional inhibitors, has led a shift towards more alternatives. A potential remedy for these is use nanoparticles, derived from renewable biodegradable resources. support sustainability goals strong inhibition properties. Their combined role makes them essential players future where environmental awareness material safety coexist. review envisages significant paradigm critical industrial contexts, calls robust ecologically approach prevention. can potentially transform field materials protection entirely, investigation inhibitors opens up new directions study development. In conclusion, this highlights crucial creating creative solutions will enhance productivity well-being. Finally, prospects difficulties sustainably applying also explored.

Язык: Английский

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Zea mays bracts extract as an eco-friendly corrosion inhibitor for steel in HCl pickling solution: Experimental and simulation studies

Arabian Journal of Chemistry, Год журнала: 2024, Номер 17(9), С. 105895 - 105895

Опубликована: Июль 5, 2024

Active phytochemicals with unique electron structures can adsorb on metal surfaces and effectively mitigate corrosion. Recently, plant extracts have garnered significant attention as green renewable corrosion inhibitors. In this study, the abundant agricultural byproducts, namely Zea mays bracts, were used extract raw materials, bracts (ZMBE) was served an eco-friendly inhibitor for mild steel (MS) in 1 M HCl pickling solution. The organic substances ZMBE analyzed via ultra-high performance liquid chromatography- quadrupole time-of-flight mass spectrometry (UPLC-QTFMS). interaction between active functional groups MS investigated using Fourier transform infrared (FT-IR) ultraviolet–visible (UV–visible) spectroscopy X-ray photoelectron (XPS). inhibition behavior scrutinized through potentiodynamic polarization (PDP) curves electrochemical impedance (EIS). results show that such aromatic rings, double bonds, hydroxyls successfully surface to form protective films. exhibits a mixed-type "geometric coverage" effect. efficiency (η) increases concentration solution temperature, optimum η 5.0 g·L−1 at 318 K is 96.2 %. adsorption of ingredients follows Langmuir El-Awady isotherms. Density theory (DFT) molecular dynamics (MD) simulations prove synergistic effect complex components mechanism. promising acid broad application prospects.

Язык: Английский

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From nature to protection: Unleashing the protective potential of Hedera helix leaves against corrosion in harsh acidic environments using experimental and theoretical insights

Arabian Journal of Chemistry, Год журнала: 2023, Номер 17(2), С. 105593 - 105593

Опубликована: Дек. 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.

Язык: Английский

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An Adaptable Charge Source Enabled by Mode‐Switchable TENG for Efficient Self‐Repairing Coating

Advanced Functional Materials, Год журнала: 2024, Номер 34(30)

Опубликована: Март 28, 2024

Abstract Self‐repairing coatings have received widespread attention due to their ability repair damaged surfaces. However, film‐forming molecules can only be fixed on the metal surface through relatively weak physical and chemical adsorption. This drawback limits its self‐repairing ability. Here, a mode‐switchable TENG (MS‐TENG) is developed, which has switch between AC DC outputs as an adjustable charge source for coatings. Besides normal sector electrodes of rotational TENG, MS‐TENG special design external (small extension rotator inner/outer orbit stator) achieves accumulation excitation circuit output air breakdown with advantage complete release accumulated charges. Compared traditional current been improved. In addition, process occurs in electrode framework independent body. Therefore, negative impact suppressed. Finally, used achieve rapid electrostatic adsorption charged injection. effectively improves performance coatings, corrosion inhibition rate 96.9%.

Язык: Английский

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Unravelling the adsorption and anti-corrosion potency of newly synthesized thiazole Schiff bases on C-steel in 1 M HCl: Computational and experimental implementations

Results in Engineering, Год журнала: 2025, Номер unknown, С. 104504 - 104504

Опубликована: Фев. 1, 2025

Язык: Английский

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N-Phenyl-N′-[5-phenyl-1,2,4-thiadiazol-3-yl]thiourea: corrosion inhibition of mild steel in 1 M HCl

International Journal of Corrosion and Scale Inhibition, Год журнала: 2024, Номер 13(1)

Опубликована: Март 30, 2024

Corrosion control is of paramount importance in the realm metals, and quest for effective inhibitors ongoing.This study delves into potential corrosion inhibitory effect Nphenyl-N′-[5-phenyl-1,2,4-thiadiazol-3-yl]thiourea (NPPTT) on mild steel when exposed to a corrosive 1 M HCl solution.Employing dual approach, we combine experimental weight loss techniques with Density Functional Theory (DFT) calculations comprehensively analyze inhibition efficiency underlying molecular interactions process.Our investigation begins confirmation inhibitor's structural properties through synthesis characterization techniques.Subsequently, assess capability by immersing samples aggressive solution, both without inhibitor.Our findings reveal significant reduction rate, signifying NPPTT as an inhibitor.At inhibitor concentration 0.5 mM immersion time 5 hours at 303 K, reaches 93.9%.To unravel mechanistic insights level, DFT are employed.Quantum chemical parameters computed, shedding light how molecules interact surface combination electrostatic interactions, coordination bonds, other linkages.These theoretical corroborate results, enhancing our comprehension action.Notably, adsorption isotherm studies align Langmuir model, further confirming adherence metal surface.In summary, this combined explores corrosive, acidic environment.Our holistic approach not only validates

Язык: Английский

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Effect of spinach (Spinacia oleracea) leaf extract on the aluminum (Al) as a green corrosion inhibitor in HCl medium

Hybrid Advances, Год журнала: 2024, Номер 7, С. 100283 - 100283

Опубликована: Авг. 27, 2024

Green corrosion inhibitors have recently attracted much attention due to their non-toxic properties, especially plant extracts. This study used spinach leaf extract (Spinacia oleracea) as a inhibitor on aluminum in an HCl medium. Spinach was obtained by maceration method, using ethanol the solvent, which then distilled purify extract. The inhibition properties were studied gravimetric method. results showed that can efficiently decrease rate of medium, achieving maximum efficiency 96.7742 %. formed protective layer surface via adsorption and chemisorption, thus increasing coverage blocking mass transfers. As concentration increases, decreases, increases. shows is viable organic option with high efficiency.

Язык: Английский

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Sustainable corrosion inhibition approaches for the mitigation of microbiologically influenced corrosion -a systematic review

Frontiers in Materials, Год журнала: 2025, Номер 12

Опубликована: Март 13, 2025

Microbiologically influenced corrosion (MIC) significantly affects the durability and integrity of different materials. In MIC, on metals is induced by microbial activities their metabolites, either directly or indirectly. Sulfate-reducing bacteria (SRB), acid-producing (APB), iron-reducing (IRB) are particularly noteworthy to mention as dominating group accounting for 70% incidents due MIC. The metabolites produced these majorly influence metal’s susceptibility they accelerate corrosion. MICs prevalent in marine environments also encountered various sectors including oil fields, storage tanks, cooling water systems, substantially contributing degradation mechanical This frequently leads pipeline leakage equipment failures attributed Beyond economic losses, MIC poses severe safety risks, potential combustion explosions. Researchers have developed strategies mitigate such applying heterocyclic organic inhibitors, plant-based green biosurfactants, nanomaterial-based coatings, inorganic inhibitors. Among approaches, inhibitors highly cost-effective, efficient, practically possible preventing These typically selected based type that needs be mitigated, chosen should act biocides. Extensive research has been conducted elucidate mechanisms inhibition activity. review evaluates effectiveness types used with detailed insights into prevention mechanisms.

Язык: Английский

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In Situ Spectroscopies Unraveling the Molecular Mechanisms of H⁺ and Cl^– on Pyridine Inhibition of Low-Carbon Steel Corrosion

The Journal of Physical Chemistry Letters, Год журнала: 2025, Номер unknown, С. 3679 - 3688

Опубликована: Апрель 4, 2025

This study utilized a variety of in situ spectroscopic techniques to investigate the corrosion inhibition mechanism three pyridine-based inhibitors on carbon steel HCl and NaCl solutions. The results demonstrated that adsorption orientation inhibitor molecules play key roles studied using second harmonic generation (SHG). number density adsorbed substrate is crucial factor affecting efficiency. A two-step physical model elucidates SHG signal time evolution, revealing initial rapid subsequent slow dynamic optimization. Our research indicated that, solution, H+ protonates pyridine inhibitors, protonated species adsorb onto positively charged bridging, forming compact chemisorbed layer effectively blocks corrosive ion access. In contrast, Cl- promotes formation porous product film, which synergizes with mitigate metal degradation. finding offers insights into molecular-level interfacial mechanisms environments and/or ions.

Язык: Английский

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