Journal ArticleDOI
Electrochemical and thermodynamic studies to evaluate the inhibition effect of synthesized piperidine derivatives on the corrosion of mild steel in acidic medium
TLDR
In this paper, the authors investigated the inhibition ability of three newly synthesized piperidine sulphonamides toward mild steel (MS) corrosion using mass loss and electrochemical techniques, and the results indicated that all the studied inhibitors act as mixed type of corrosion inhibitors.Abstract:
The inhibition ability of three newly synthesized piperidine sulphonamides toward the mild steel (MS) corrosion was investigated using mass loss and electrochemical techniques. The adsorption of all the piperidine sulphonamides on MS complies with the Langmuir isotherm model in all studied temperatures. Associated activation and adsorption thermodynamic parameters were computed and discussed. The polarization results indicated that all the studied inhibitors act as mixed type of corrosion inhibitors. The protective layer of organic compounds on MS surface was confirmed by scanning electron microscopy (SEM). The values of free energy of adsorption (ΔG
ads) revealed that the inhibitors adsorbed on the MS surface via both chemisorption and physisorption mechanisms. The relationship between inhibition efficiency and molecular structures of inhibitors was discussed using quantum chemical parameters. The inhibition efficiencies obtained from mass loss and electrochemical measurements were in good agreement.read more
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Quantum chemical and molecular dynamic simulation studies for the prediction of inhibition efficiencies of some piperidine derivatives on the corrosion of iron
TL;DR: In this article, the adsorption and corrosion inhibition properties of three piperidine derivatives, namely, (1-(5-fluoro-2-(methylthio) pyrimidine-4-yl)-piperidine 4-yl), (1.5-5-dimethoxybenzenesulfonamide (FMPPDBS) and FMPPNBS, on the corrosion of iron were investigated by performing quantum chemical calculations and molecular dynamics simulations.
Journal ArticleDOI
Isoxazolidine derivatives as corrosion inhibitors for low carbon steel in HCl solution: experimental, theoretical and effect of KI studies
TL;DR: In this article, two isoxazolidine derivatives, namely 5-(benzo[d][1,3]dioxol-5-ylmethyl)-2-tetradecyl (BDMTI) and 5-(4-hydroxy-3-methoxybenzyl)-2 -hexylmethyl (HMBTI), were synthesized and characterized using FTIR, C-NMR, H-NPM, and elemental analysis.
Journal ArticleDOI
Corrosion protection performance of functionalized graphene oxide nanocomposite coating on mild steel
TL;DR: In this article, a corrosion resistance coating film based on the formation of nanocomposite coating is reported, and the composite consisted of FGO and epoxy resin (EP) was coated on the mild steel substrate and the corrosion protection performance and barrier protection properties were monitored using electrochemical impedance spectroscopy (EIS) and potentiodynamic polarization studies.
Journal ArticleDOI
Influence of different polyphenol extracts of Taxus baccata on the corrosion process and their effect as additives in electrodeposition
TL;DR: In this paper, the corrosion inhibition of carbon steel in 1 1/M HCl solution by methylene dichloride (MDE), ethyl acetate (EAE), and butanolic (BE) extracts of Taxus baccata and the evaluation of their behaviours as additives in electroplating were studied.
Journal ArticleDOI
Corrosion resistance of black phosphorus nanosheets composite phosphate coatings on Q235 steel
Mengzhe Wang,Ruina Ma,An Du,Shihao Hu,Mustafa Muhammad,Xiaoming Cao,Yongzhe Fan,Xue Zhao,Jianjun Wu +8 more
TL;DR: In this article, the effects of different BP nanosheet concentrations on the composition, morphology, and corrosion resistance of the phosphate coatings were studied, and the results indicated that the composition of the phosphating coatings did not change, but their morphology did.
References
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Ionization Potential, Electron Affinity, Electronegativity, Hardness, and Electron Excitation Energy: Molecular Properties from Density Functional Theory Orbital Energies
TL;DR: In this article, the density functional theory was applied to representative atomic and molecular systems, including various inorganic and organic molecules with covalent and ionic bonds, using density functional analysis.
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Corrosion Inhibitors—Correlation between Electronic Structure and Efficiency
TL;DR: Corrosion inhibition efficiencies of heterocyclic, unsaturated (aromatic and nonaromatic) compounds (pyrimidines, benzothiazole derivatives, amino acids containing an aromatic part, pyridi...
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Investigation of adsorption and inhibitive effect of 2-mercaptothiazoline on corrosion of mild steel in hydrochloric acid media
TL;DR: In this paper, the inhibition effect of 2-mercaptothiazoline (2MT) on the corrosion behavior of mild steel was studied in both short and long immersion times (120h) using potentiodynamic polarization, electrochemical impedance spectroscopy (EIS) and linear polarization resistance (LPR) techniques.
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Some new triazole derivatives as inhibitors for mild steel corrosion in acidic medium
TL;DR: Two triazole derivatives, 3,4-dichloro-acetophenone-O-1'-(1,3,4'-triazolyl)-methaneoxime (4-DTM) and 2,5-Dichloron-acethenone- O-1]-(1',3, 4'-triaxolyl)methANEoxime, were synthesized, and the inhibition effects for mild steel in 1 M HCl solutions were investigated by weight loss measurements, electrochemical tests and scanning electronic microscopy (SEM
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Corrosion inhibition of mild steel by some schiff base compounds in hydrochloric acid
TL;DR: In this paper, the corrosion inhibition of mild steel in 1M HCl by benzylidene-pyridine-2-yl-amine (A), (4-benzylidenes)-polyphenol 2-ylamine (B), and 4-chloro-bensyliden-polygonal-polyphenolic (CBP) inhibitors was studied at 25°C using electrochemical and weight loss measurements.