Journal ArticleDOI
Synthesis of a novel pyrazole heterocyclic derivative as corrosion inhibitor for low-carbon steel in 1M HCl: Characterization, gravimetrical, electrochemical, mathematical, and quantum chemical investigations
TLDR
In this article , a novel organic corrosion inhibitor, named 3, 5-dimethyl-1H-pyrazol-1-yl m (4-((4-hydroxybenzylidene) amino) phenyl) methanone (DPHM) has been effectively synthesized and characterized.Abstract:
A novel organic corrosion inhibitor, named 3, 5-dimethyl-1H-pyrazol-1-yl m (4-((4-hydroxybenzylidene) amino) phenyl) methanone (DPHM) has been effectively synthesized and characterized. The diagnosis of functional groups and constituents of DPHM has been conducted by FTIR, 1H NMR, and 13C NMR. The inhibitor efficacy for low-carbon steel in 1 M HCl was evaluated by using weight loss and electrochemical techniques. The inhibition efficiency was increased with increasing the temperature and DPHM concentrations. The inhibition efficiency approaches a maximum value of 89.5% at 400 ppm of DPHM and 60 °C. The efficiency of the inhibitor was attributed to the formation of a protective mono-layer on the steel surface. The Langmuir adsorption isotherm was used to inspect the adsorption process mechanism. Theoretical quantum chemical simulations were used to investigate the mechanism of inhibition. The results revealed that the DPHM was the donor of electron, while the steel surface was an electron acceptor. Mathematical and statistical modelling were used as powerful tool for data representation. Exponential model, with 0.992 correlation coefficient, was the most accurate one. read more
Citations
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Novel coumarin-buta-1,3-diene conjugated donor–acceptor systems as corrosion inhibitors for mild steel in 1.0 M HCl: Synthesis, electrochemical, computational and SRB biological resistivity
TL;DR: In this article , a new synthesized coumarin-buta-1, 3-diene conjugated dyes having donor-acceptor structure were prepared and the characterization of the synthesized dyes was approved by using IR, 1H NMR and Mass fragmentation analysis.
Journal ArticleDOI
Synthesis, characterization and protective efficiency of novel polybenzoxazine precursor as an anticorrosive coating for mild steel
TL;DR: In this paper , a 2-[(E)-(hexylimino)methyl] phenol was synthesized by adding salicylaldehyde (SA) and n-hexylamine (Hex-NH 2 ), which was subsequently reduced by sodium borohydride to produce 2]-(heoxylamino) methyl]-phenol.
Journal ArticleDOI
Agro-industrial wastes as corrosion inhibitor for 2024-T3 aluminum alloy in hydrochloric acid medium
TL;DR: In this paper , the authors investigated the effect of coconuts as a potential corrosion inhibitor for AA2024-T3 aluminium alloy in 1 M HCl solutions using weight loss, potentiodynamic polarization, and electrochemical impedance spectroscopy techniques.
Journal ArticleDOI
(3,5-dimethyl-1H-pyrazol-1-y1) (4-((3,4-dimethoxybenzylidene) amino) phenyl) methanone as a novel corrosion inhibitor for low-carbon steel in hydrochloric acid: Synthesis, diagnosis, and application
TL;DR: In this article , a novel organic corrosion inhibitor, named (3,5-dimethyl-1H-pyrazol-1-y1) (4-((3,4-dimethoxybenzylidene) amino) phenyl) methanone (DPMM) has been effectively synthesized and characterized.
Journal ArticleDOI
Construction of novel polybenzoxazine coating precursor exhibiting excellent anti-corrosion performance through monomer design
TL;DR: In this article , salicylaldehyde (SA) and p-toluidine (Tol-NH2) were used to synthesize 2-(Z)[(4-methylphenyl)imino]methylphenol, which was then reduced to 2-[(4]-methyl phenyl)amino] methylphenol.
References
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Thermodynamic characterization of metal dissolution and inhibitor adsorption processes in mild steel/2,5-bis(n-thienyl)-1,3,4-thiadiazoles/hydrochloric acid system
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Thermodynamic study of metal corrosion and inhibitor adsorption processes in mild steel/1-methyl-4[4′(-X)-styryl pyridinium iodides/hydrochloric acid systems
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The adsorption of thiourea on mild steel
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Experimental and theoretical studies of two imidazolium-based ionic liquids as inhibitors for mild steel in sulfuric acid solution
TL;DR: In this article, the inhibition performance and mechanism of 1-octyl-3-methylimidazolium bromide ([OMIM]Br) and 1-allyl- 3-octylimidaxoliambromide [AOIM] Br were investigated using weight loss method, electrochemical measurements, scanning electron microscope (SEM) and quantum chemical calculation.