A pyridine derivative 2-(2-Methylaminoethyl)pyridine (MAEP) as a ‘green’ corrosion inhibitor for low-carbon steel in hydrochloric acid media

Alrebh, Aqeel; Rammal, Mahmoud Bassam; Omanovic, Sasha

doi:10.1016/j.molstruc.2021.130333

Cited by 33 publications

(12 citation statements)

References 56 publications

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“…where η denotes the inhibition efficiency and θ indicates the surface coverage [40][41][42]. The curve fitting results based on the R(QR) circuit are displayed in Table 2.…”

Section: Electrochemical Impedance Spectroscopy (Eis) Measurementsmentioning

confidence: 99%

Cucumber (Cucumis sativus L.) Leaf Extract as a Green Corrosion Inhibitor for Carbon Steel in Acidic Solution: Electrochemical, Functional and Molecular Analysis

et al. 2022

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An extract of cucumber leaves (ECSL) was prepared as a green corrosion inhibitor for carbon steel. Its carbon steel corrosion inhibition performance against 0.5 mol L−1 H2SO4 was investigated using electrochemical methods and scanning electron microscopy (SEM). Its composition was analyzed by gas chromatography and mass spectroscopy (GC−MS). Quantum chemical calculations and molecular dynamics simulations (MDS) were conducted to elucidate the adsorption mechanism of the inhibitor molecules on the carbon steel surface. The results indicated that the inhibition efficiency increases with its increasing concentration. The extract acted as a mixed type corrosion inhibitor, and its inhibition properties were ascribed to the geometric coverage effect induced by its adsorption on the metal surface in accordance with Langmuir’s law. The active components in the extract were identified as mainly organic compounds with functional groups such as aromatic moieties and heteroatoms. The inhibition activities of ECSL are delivered through the ability of the active components to adsorb on the metal surface through their functional groups to form a protective layer which hinders the contact of aggressive substances with carbon steel and thus suppresses its corrosion. This research provides an important reference for the design of green corrosion inhibitors based on plant waste materials.

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“…where η denotes the inhibition efficiency and θ indicates the surface coverage [40][41][42]. The curve fitting results based on the R(QR) circuit are displayed in Table 2.…”

Section: Electrochemical Impedance Spectroscopy (Eis) Measurementsmentioning

confidence: 99%

Cucumber (Cucumis sativus L.) Leaf Extract as a Green Corrosion Inhibitor for Carbon Steel in Acidic Solution: Electrochemical, Functional and Molecular Analysis

et al. 2022

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“…In recent years, the application of organic corrosion inhibitors was considered one of the most effective corrosion inhibition technologies 6,7 . The excellent corrosion inhibition performance of organic corrosion inhibitors was due to the fact that heteroatoms (N, O, S) and unsaturated bonds (C=C, C=N, C=O) of organic corrosion inhibitor can combine with the 3d of Fe leading to easily adsorbing on the surface of carbon steel, 8 which hindered the contact between corrosive medium and carbon steel, so as to improve the corrosion inhibition effect 7,9–11 .…”

Section: Introductionmentioning

confidence: 99%

“…4,5 In recent years, the application of organic corrosion inhibitors was considered one of the most effective corrosion inhibition technologies. 6,7 The excellent corrosion inhibition performance of organic corrosion inhibitors was due to the fact that heteroatoms (N, O, S) and unsaturated bonds (C=C, C=N, C=O) of organic corrosion inhibitor can combine with the 3d of Fe leading to easily adsorbing on the surface of carbon steel, 8 which hindered the contact between corrosive medium and carbon steel, so as to improve the corrosion inhibition effect. 7,[9][10][11] Relevant literature research shows that most organic corrosion inhibitors can exert good corrosion inhibition performance under low temperature and low acid conditions, but with the increase in temperature, the corrosion inhibition ability decreases, and the corrosion rate increases.…”

Section: Introductionmentioning

confidence: 99%

Extraordinary corrosion inhibition efficiency of omeprazole in 1 M HCl solution: Experimental and theoretical investigation

Wang

Liu

et al. 2023

Surface & Interface Analysis

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Omeprazole (OL) as a green and efficient drug corrosion inhibitor was first investigated for the corrosion inhibition of Q235 carbon steel at 298, 308, and 318 K. Open circuit potential, Tafel, electrochemical impedance spectroscopy, and weight loss were used to evaluate the inhibition performance toward Q235 carbon steel in HCl medium. The results showed that OL exhibited excellent corrosion protection to carbon steel at different temperatures because of forming the compact and ordered OL adsorption film on Q235 surface. Especially, the inhibition efficiency increased to 96.11%, 95.12%, and 94.04% for 40-mg/L OL in Tafel at 298, 308, and 318 K. Meanwhile, N-Fe and S-Fe bonds determined from X-ray photoelectron spectroscopy revealed the multiple anchoring interactions between steel and OL with S and N atoms as the active sites. Density functional theory and molecular dynamics simulations showed the low energy gap ΔE and high adsorption energy values, besides the radial distribution function (RDF) indicating the strong chemical sorption of OL on Fe surface, which proved the superior corrosion inhibition efficiency of OL at a molecular or atomic level.

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“…Over the past few decades, several studies have been reported on the corrosion inhibition properties of organic corrosion inhibitors on mild steels under acidic conditions, including Mannich base (10) , Schiff base (11) , pyridine (12) , imidazole (13) , etc.…”

Section: Introductionmentioning

confidence: 99%

Synthesis, Characterization and Corrosion Inhibition study of N-(4-((4-(pyridin-2-yl) piperazin-1-yl) methyl) phenyl) quinoline-6-carboxamide on Mild Steel under HCl Solution

Anbalagan¹,

Ravishankar²,

Sivakumar³

et al. 2023

IJST

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Objectives: To use the newly synthesized efficient organic corrosion inhibitor N-(4-((4-(pyridin-2-yl) piperazin-1-yl)methyl)phenyl)quinoline-6-carboxamide to carry out on mild steel corrosion inhibition study. Methods: N-(4-((4-(pyridin-2-yl)piperazin-1-yl)methyl)phenyl)quinoline-6-carboxamide was synthesized by stirring method under 0 o C to room temperature at 12 hrs. The synthesized organic inhibitor was characterized by 1 H NMR, 13 C NMR, UV and FTIR spectroscopy. The inhibition effect of organic inhibitor on the mild steel corrosion was investigated with weight loss measurement by gold measuring weighing balance. The inhibitor anchored down on the mild steel surface was analyzed by scanning electron microscopy and Atomic Force Microscopy. Findings: The inhibitor shows a better inhibition efficiency of maximum 74.41% in 1N HCl medium. In addition to this adsorption isothermal models were also interpreted to fit the adsorption behavior of the inhibitor compound on mild steel surface. Thus, the result shows the Langmuir adsorption isotherm. As a result, the interactions between inhibitor and mild steel surface have chemisorptions. Novelty: The N-(4-((4-(pyridin-2-yl) piperazin-1-yl)methyl)phenyl)quinoline-6-carboxamide shows better corrosion inhibition efficiency (74.41%). In addition, inhibitor and mild steel surface show chemisorptions interaction, which confirms free energy and enthalpy of adsorption.

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A pyridine derivative 2-(2-Methylaminoethyl)pyridine (MAEP) as a ‘green’ corrosion inhibitor for low-carbon steel in hydrochloric acid media

Cited by 33 publications

References 56 publications

Cucumber (Cucumis sativus L.) Leaf Extract as a Green Corrosion Inhibitor for Carbon Steel in Acidic Solution: Electrochemical, Functional and Molecular Analysis

Cucumber (Cucumis sativus L.) Leaf Extract as a Green Corrosion Inhibitor for Carbon Steel in Acidic Solution: Electrochemical, Functional and Molecular Analysis

Extraordinary corrosion inhibition efficiency of omeprazole in 1 M HCl solution: Experimental and theoretical investigation

Synthesis, Characterization and Corrosion Inhibition study of N-(4-((4-(pyridin-2-yl) piperazin-1-yl) methyl) phenyl) quinoline-6-carboxamide on Mild Steel under HCl Solution

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