A combined electrochemical and DFT investigation of ornidazole as a benign anti-corrosion agent for carbon steel materials in acidizing environments

Results in Materials, Journal Year: 2024, Volume and Issue: 21, P. 100542 - 100542

Published: Feb. 11, 2024

The corrosion inhibition performance of ornidazole was investigated as an eco-friendly option during the acid cleaning carbon steel using potentiodynamic polarization (PDP) and electrochemical impedance spectroscopy (EIS) in combination with density functional theory (DFT) simulations. efficiency noted to rise a concentration exposure time. maximum after 0, 1 7 days were attained at 1.6 g/L values 93.8, 96.2 98.7 %, respectively. Potentiodynamic revealed that indazole is mixed-type inhibitor. EIS indicates increase resistance concentration. SEM/EDX consistent results indicate inhibits by surface adsorption which Langmuir isotherm (R2 = 0.9999). Kads more strongly adsorbed ornidazole. ΔGads (−5.69 −11.75 kJ/mol) spontaneous. inhibitory properties found be related molecular indicated theoretical insights from DFT simulations susceptible sites on molecules deduced quantum descriptors, natural population analysis, states electrostatic potential. herein suitable retardant for acidic environments.

Language: Английский

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A review of the electrochemical and galvanic corrosion behavior of important intermetallic compounds in the context of aluminum alloys

RSC Advances, Journal Year: 2024, Volume and Issue: 14(43), P. 31921 - 31953

Published: Jan. 1, 2024

Aluminum alloys are widely sought for different applications due to their high strength-to-weight ratio. Most often this increased strength of the alloy is achieved by specific alloying elements and heat treatment processes which give rise second phases intermetallic particles (IMPs) also known as compounds (IMCs). These play a dominant role in corrosion susceptibility aluminum alloys. This review provides systematic survey electrochemical, galvanic behavior IMPs context A discussion electrochemical/galvanic selected/important that commonly found such Q-phase (Al

Language: Английский

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Effect of seawater salinity, pH, and temperature on external corrosion behavior and microhardness of offshore oil and gas pipeline: RSM modelling and optimization

Scientific Reports, Journal Year: 2024, Volume and Issue: 14(1)

Published: July 17, 2024

Abstract This research aims to investigate the effects of seawater parameters like salinity, pH, and temperature on external corrosion behaviour microhardness offshore oil gas carbon steel pipes. The immersion tests were performed for 28 days following ASTM G-1 standards, simulating controlled artificial marine environments with varying pH levels, salinities, temperatures. Besides, Field emission scanning electron microscopy (FESEM) analysis is study morphology. Additionally, a Vickers tester was used analysis. results revealed that an increase in salinity from 33.18 61.10 ppt can reduce rate by 28%. In contrast, variations have significant effect rate, decrease 8.50 7 causing 42.54% rate. However, found be most prominent parameter, resulting 76.13% 10.99% reduction pipelines. Moreover, response surface methodology (RSM) modelling determine optimal Furthermore, desirability factor these 0.999, experimental validation displays good agreement predicted model values, around 4.65% error 1.36% microhardness.

Language: Английский

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A review of the application of ionic liquids as eco-friendly corrosion inhibitors for steel, aluminum, copper and magnesium alloys

Journal of Ionic Liquids, Journal Year: 2024, Volume and Issue: 4(1), P. 100098 - 100098

Published: May 23, 2024

This review examines the corrosion inhibition performance of ionic liquids used as inhibitors for aluminum, copper, magnesium, steel, and their alloys in various aqueous media. The predominant classes employed are imidazolium, triazolium, thiazolium, phosphonium, pyridium, ammonium, pyrrolidinium, pyridinium-based liquids. pieces literature revealed that studies were carried out acid, base, salt media an array efficiencies was obtained. Herein, possible influence experimental techniques, liquid concentration, structure, molecular weight on efficiency tabulated discussed.

Language: Английский

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Developments in anticorrosive organic coatings modulated by nano/microcontainers with porous matrices

Advances in Colloid and Interface Science, Journal Year: 2024, Volume and Issue: 330, P. 103209 - 103209

Published: June 5, 2024

The durability and functionality of many metallic structures are seriously threatened by corrosion, which makes the development anticorrosive coatings imperative. This state-of-the-art survey explores recent developments in field organic modulated innovations involving nano/microcontainers with porous matrices. integration these cutting-edge delivery systems seeks to improve protective properties enabling controlled release, extended durability, targeted application corrosion inhibitors, can be co-constructed achieve defect filling polymeric materials. major highlight this review is an in-depth analysis functionalities provided active protection self-healing coatings, including their performance evaluation. In one case, after 20 days immersion 0.1 M NaCl, a scratched coating containing mesoporous silica nanoparticles loaded inhibitor benzotriazole shelled polydopamine (MSNs-BTA@PDA) exhibited restoration indicated sustained resistance rise over period monitored impedance values at 0.01 Hz frequency, rising from 8.3 × 10

Language: Английский

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Surface interaction and inhibition mechanism prediction of Aciclovir molecule on Fe (110) using computational model based on DFT, RDF and MD simulation

Computational and Theoretical Chemistry, Journal Year: 2024, Volume and Issue: 1238, P. 114702 - 114702

Published: June 12, 2024

Language: Английский

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Corrosion Inhibition of Expired Cefazolin Drug on Copper Metal in Dilute Hydrochloric Acid Solution: Practical and Theoretical Approaches

Molecules, Journal Year: 2024, Volume and Issue: 29(5), P. 1157 - 1157

Published: March 5, 2024

In this work, we studied the corrosion of Cu metal in 0.5 mol L−1 HCl and inhibition effect expired Cefazolin drug. The efficiency (IE) varied according to its concentration solution. As increased 300 ppm, IE 87% at 298 K decreased 78% as temperature 318 K. drug functioned a mixed–type inhibitor. adsorption on copper surface followed Temkin’s model. magnitudes standard free energy change (ΔGoads) equilibrium constant (Kads) indicated spontaneous nature exothermicity process. Energy dispersive X-ray (EDX) scanning electron microscopy (SEM) techniques showed that molecules were strongly attached surface. electrochemical frequency modulation (EFM), potentiodynamic polarization (PP), impedance spectroscopy (EIS) results good agreement with weight loss (WL) method. density functional tight–binding (DFTB) Monte Carlo (MC) simulation bound through lone pair electrons heteroatoms well π-electrons tetrazole ring. between was –459.38 kJ mol−1.

Language: Английский

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Multi-Technique assessment of zaleplon for corrosion control in mild steel using 1M HCl media: A study incorporating molecular dynamics, electrochemical testing, and morphological evaluation

Journal of the Taiwan Institute of Chemical Engineers, Journal Year: 2025, Volume and Issue: 170, P. 105995 - 105995

Published: Feb. 5, 2025

Language: Английский

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A review of the extraction and application of eco-friendly biomass for corrosion protection of metals

Results in Chemistry, Journal Year: 2023, Volume and Issue: 7, P. 101286 - 101286

Published: Dec. 29, 2023

This review focuses on diverse biomass-based inhibitors employed to hinder corrosion in different aggressive environments, along with several methods of the biomass extraction. The prevalent used industries are toxic can inflict harm ecosystem and escalate health risks living organisms. paper summarizes obtaining extracts from ecofriendly which includes conventional unconventional extraction application protection metals. subject green is still up for debate despite extensive experimental work published studies. These have demonstrated significant inhibition efficiency various media, including acidic, alkaline, chloride-containing solutions. Their effectiveness be attributed presence active functional groups, such as nitrogen, sulfur, oxygen heterocyclic compounds, adsorb onto metal surface form protective layers.

Language: Английский

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Anti-corrosive Efficiency of Expired Propranolol Drug as a Corrosion Inhibitor on Mild Steel in Acid Medium

Deleted Journal, Journal Year: 2024, Volume and Issue: 101(2), P. 351 - 367

Published: Feb. 26, 2024

Propranolol is a pharmaceutical organic drug used for the treatment of high blood pressure, heart problems and anxiety diseases. The disposal expired threatens environment, but still, it contains active components. potentiality components propranolol (EPD) has utilized to protect mild steel corrosion in 1.0 M hydrochloric acid medium. Weight loss method, potentiodynamic polarization, ac-electrochemical impedance spectroscopy, scanning electron microscopy with energy disperse X-ray spectroscopy atomic force (AFM) were investigate drug's capacity defend surfaces against 1 HCl outcomes studies demonstrate that efficiently inhibits medium at various temperatures inhibitor concentrations. maximum inhibition efficiency obtained by weight method was 89.81% 0.01 EPD concentration 303 K. been determined follow Temkin's adsorption isotherm model. SEM–EDX AFM images indicated formation protective layer on surface attack. Potentiodynamic polarization showed mechanism mixed mode predominantly cathodic control. observed values ∆G0ads, inhibitive effect exothermic spontaneous. Furthermore, thermodynamic parameters suggest process

Language: Английский

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