Coordination bonding and corrosion inhibition potential of nitrogen-rich heterocycles: Azoles and triazines as specific examples

Coordination Chemistry Reviews, Journal Year: 2023, Volume and Issue: 488, P. 215177 - 215177

Published: April 28, 2023

Language: Английский

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Prediction of inhibition performance of agro-waste extract in simulated acidizing media via machine learning

Fuel, Journal Year: 2023, Volume and Issue: 356, P. 129527 - 129527

Published: Aug. 28, 2023

The study aims to employ machine learning modelling approach model the measurement of corrosion rate on AISI 316 stainless steel when inhibitor is added in different dosages and dose schedules. To achieve this, experimental data was analyzed statistically modeled using Levenberg-Marquardt's back-propagation artificial neural network (LMBP-ANN), adaptive neuro-fuzzy inference system (ANFIS) algorithms. Maximum inhibition efficiencies 96.44%, 94.74%, 90.24% were obtained from at a concentration 10 g temperatures 288, 298, 308 K respectively. experiment shows that time profile depends dosing schedule, whereas final mainly environmental severity. rates are predicted by developed models while their capabilities compared terms Mean Absolute Percentage Error root (MAPE), determination coefficient (R2), Deviation (MAD), Root Square (RMSE) for all outputs. From statistical metrics obtained, credence given ANFIS as best predictive LMBP-ANN with MAPE, R2, MAD, RMSE value 15.242,0.893, 0.105,0.372 rate, 13.135,0.904, 0.725,1.036, weight loss 18.342, 0.835, 20.417, 24.238 efficiency testing stage. effect exposure most significant parameters predicting eggshell extract potential oilfield pickling acidizing media.

Language: Английский

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Development of anti-corrosive coating on AZ31 Mg alloy modified by MOF/LDH/PEO hybrids

Journal of Magnesium and Alloys, Journal Year: 2024, Volume and Issue: 12(2), P. 586 - 607

Published: Jan. 15, 2024

The self-assembly of hybrid inorganic-organic materials on stationary platforms plays a critical role in improving their structural stability and wide usability. In this work, novel two-step hydrothermal approach is proposed for synthesizing stable advanced coatings metal-oxide through the surface modification layered double hydroxide (LDH) films using metal-organic frameworks (MOFs). Initially, Mg-Al LDH nanocontainers, grown magnesium oxide layer produced plasma electrolytic oxidation (PEO) AZ31 Mg alloy substrate, were intercalated with cobalt via an route, providing metallic coordination center MOF formation. subsequent step, pioneering technique introduced, utilizing tryptophan as organic linker first time at pH 10. cobalt- complex, driven by strong bonding between electrophilic sites monomers nucleophilic sites, facilitated formation network having cloud-like structure MgAl LDH's film. resulting MOF-LDH encapsulation containers demonstrate exceptional electrochemical when exposed to 3.5 wt.% NaCl solution, surpassing performance PEO pure coatings. This enhanced attributed development dense top composition within self-assembled MOF, effectively sealing flaws preventing infiltration corrosive ions into underlying substrate. mechanism MOFs galleries investigated density functional theory calculations.

Language: Английский

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Significance of Hammett and Taft substituent constants on bonding potential of organic corrosion inhibitors: Tailoring of reactivity and performance

Coordination Chemistry Reviews, Journal Year: 2023, Volume and Issue: 495, P. 215385 - 215385

Published: Aug. 19, 2023

Language: Английский

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Coordination compounds as corrosion inhibitors of metals: A review

Coordination Chemistry Reviews, Journal Year: 2023, Volume and Issue: 499, P. 215503 - 215503

Published: Nov. 1, 2023

Language: Английский

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Insights into the uses of two azine decorated d10-MOFs for corrosion inhibition application on mild steel surface in saline medium: Experimental as well as theoretical investigation

Journal of Molecular Liquids, Journal Year: 2023, Volume and Issue: 381, P. 121789 - 121789

Published: April 4, 2023

Language: Английский

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Regioisomeric effect of heteroatoms and functional groups of organic ligands: Impacts on coordination bonding and corrosion protection performance

Coordination Chemistry Reviews, Journal Year: 2024, Volume and Issue: 515, P. 215966 - 215966

Published: May 20, 2024

The regioisomeric effect, which refers to the different positions of heteroatoms and functional groups on a molecule, significantly impacts stability, physicochemical properties, chemical reactivity, coordination bonding organic compounds. These effects are critical for their commercial applications, notably in corrosion inhibition. Regioisomeric ligands, with unique spatial configurations groups, influence ability establish stable interactions metal surfaces. Certain regioisomers may exhibit enhanced affinity adsorption capacities based structural configurations, thereby facilitating formation more durable protective layer substrate. This review explores impact regioisomerism inhibition performance A literature survey reveals that identical substituents (e.g., –OH, –NH2, –COOH, –NO2, –OR), multiple bonds >CC< –CC–), or N, O, S) at varying diverse capabilities efficiencies. detailed analysis indicates certain regioisomers, due strategic placement achieve increased stability form relatively stronger complexes. enhances effectiveness chelation mechanisms. role group has been seldom observed documented previous studies. current research also underscores significance determining ligands. thorough understanding will assist scientists engineers developing effective inhibitors.

Language: Английский

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Current and emerging trends of inorganic, organic and eco-friendly corrosion inhibitors

RSC Advances, Journal Year: 2024, Volume and Issue: 14(43), P. 31877 - 31920

Published: Jan. 1, 2024

Effective corrosion control strategies are highly desired to reduce the fate of corrosion. One widely adopted approach is use inhibitors, which can significantly mitigate detrimental effects This systematic review provides a thorough analysis including both inorganic and organic compounds. It explores inhibition mechanisms, highlighting remarkable inhibitive efficiency compounds attributed presence heteroatoms conjugated π-electron systems. The presents case studies investigations shedding light on their performance application potential. Moreover, it compares efficacy, compatibility, sustainability emerging environmentally friendly biopolymers from natural resources as promising candidates. also highlights potential synergistic impacts between mixed particularly organic/organic systems, viable advantageous choice for applications in challenging processing environments. evaluation inhibitors discussed, encompassing weight loss (WL) analysis, electrochemical surface quantum mechanical calculations. discusses thermodynamics isotherms related inhibition, further improving understanding inhibitor's behavior mechanisms. serves valuable resource researchers, engineers, practitioners involved control, offering insights future directions effective strategies.

Language: Английский

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Effect of Adsorption and Interactions of New Triazole-Thione-Schiff Bases on the Corrosion Rate of Carbon Steel in 1 M HCl Solution: Theoretical and Experimental Evaluation

ACS Omega, Journal Year: 2024, Volume and Issue: 9(6), P. 6761 - 6772

Published: Feb. 2, 2024

Due to the unique properties of steel, including its hardness, durability, and superconductivity, which make it an essential material in many industries, lacks corrosion resistance. Herewith, two novel triazole-thione Schiff bases, namely, (E)-5-methyl-4-((thiophen-2-ylmethylene)amino)-2,4-dihydro-3H-1,2,4-triazole-3-thione (TMAT) (E)-4-(((5-(dimethylamino)thiophen-2-yl)methylene)amino)-5-methyl-2,4-dihydro-3H-1,2,4-triazole-3-thione (DMTMAT), were synthesized characterized. The inhibition (CI) ability these molecules on carbon steel aqueous solution 1 M HCl as well their interaction with surface was studied using a number different techniques. results confirmed that CI capability organic depends strong adsorption metal formation protective anticorrosion film. Weight loss tests revealed efficiencies TMAT DMTMAT 91.1 94.0%, respectively, at × 10–3 concentrations. electrochemical impedance spectroscopy (EIS) indicated there direct relationship between inhibitor concentration transfer Potentiodynamic polarization (PDP) experiments have proven be mixed-type inhibitors C-steel hydrochloric acid follow Langmuir isotherm model. Several thermodynamic kinetic parameters calculated. negative values adsorption-free energy are −36.7 −38.5 kJ/mol for DMTMAT, confirming spontaneity process. MD simulation study's findings show nearly parallel surface. calculated by inhibitory trend same. practical implementation is consistent what computer models predicted.

Language: Английский

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Modulating chelation with pH sensitivity for controlled structural defects and enhanced electrochemical and photocatalytic activities of LDH films

Journal of Materials Chemistry A, Journal Year: 2024, Volume and Issue: 12(6), P. 3411 - 3433

Published: Jan. 1, 2024

Enhancing LDH film performance through pH-responsive chelation. A pH-sensitive chelation approach was employed to tailor MgAl-LDH, achieving improved electrochemical stability and enhanced photocatalytic efficiency.

Language: Английский

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