Synthesis of 1,2,3-triazoles in the presence of mixed Mg/Fe oxides and their evaluation as corrosion inhibitors of API 5L X70 steel submerged in HCl

Espinoza-Vázquez, Araceli; Rodríguez-Gómez, Francisco Javier; Vergara-Arenas, B. I.; Lomas‐Romero, Leticia; Ángeles-Beltrán, Deyanira; Negrón‐Silva, Guillermo E.; Morales‐Serna, José Antonio

doi:10.1039/c7ra01325f

Cited by 23 publications

(9 citation statements)

References 59 publications

(3 reference statements)

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“…Generally, high positive value of K ads and high negative value of ΔG ads are associated with strong metal-inhibitor interactions 55,56 . The higher values of K ads for DAEP2 indicate that it has stronger absorption ability than DAEP1 (Table SI3).…”

Section: Resultsmentioning

confidence: 99%

Epoxy pre-polymers as new and effective materials for corrosion inhibition of carbon steel in acidic medium: Computational and experimental studies

Dagdag

Safi

Hsissou

et al. 2019

Sci Rep

105

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Present study is designed for the synthesis, characterization and corrosion inhibition behavior of two diamine aromatic epoxy pre-polymers (DAEPs) namely, N 1 ,N 1 ,N 2 ,N 2 -tetrakis (oxiran-2-ylmethyl) benzene-1,2-diamine (DAEP1) and 4-methyl-N 1 ,N 1 ,N 2 ,N 2 -tetrakis (oxiran-2-ylmethyl) benzene-1,2-diamine (DAEP2) for carbon steel corrosion in acidic medium. Synthesized DAEPs were characterized using spectral (Nuclear magnetic resonance ( 1 H NMR) and Fourier transform infrared-attenuated total reflection (FTIR-ATR)) techniques. Viscosity studies carried out at four different temperatures (20–80 °C) increase in temperature causes significant reduction in their viscosities. The anticorrosive properties of DAEPs differing in the nature of substituents, for carbon steel corrosion in 1 M HCl solution was evaluated using several experimental and computational techniques. Both experimental and computational studies showed that inhibitor (DAEP2) that contains electron releasing methyl (-CH 3 ) showed higher protectiveness as compared to the inhibitor (DAEP1) without substituent (-H). Electrochemical results demonstrate that DAEPs act as reasonably good inhibitors for carbon steel in 1 M HCl medium and their effectiveness followed the sequence: DAEP2 (92.9%) > DAEP1 (91.7%). The PDP results show that the diamine aromatic epoxy pre-polymers molecules (DAEPs) act as mixed type inhibitors. Electrochemical study was also supported using scanning electron microscopy (SEM) method were significant improvement in the surface morphology of inhibited (by DAEPs) metallic specimens was obtained. Results derived from computational density functional theory (DFT) and molecular dynamics (MD) simulationsand studies were consistent with the experimental results derived from SEM, EIS and PDP electrochemical studies. Adsorption of the DAEPs obeyed the Langmuir adsorption isotherm model.

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Section: Resultsmentioning

confidence: 99%

Epoxy pre-polymers as new and effective materials for corrosion inhibition of carbon steel in acidic medium: Computational and experimental studies

Dagdag

Safi

Hsissou

et al. 2019

Sci Rep

105

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“…4,5 Many of these organic heterocyclic compounds are obtained efficiently using easy and cost-effective approaches, and they show relatively high inhibition effectiveness. 6 Aromatic resins, such as those based on bisphenol Aepichlorohydrin condensates, are a widely known group of epoxy monomers. The synthetic procedures and characterization of these epoxy monomers have been discussed in detail in the literature.…”

Section: Introductionmentioning

confidence: 99%

Rheological, electrochemical, surface, DFT and molecular dynamics simulation studies on the anticorrosive properties of new epoxy monomer compound for steel in 1 M HCl solution

et al. 2019

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“…The use of corrosion inhibitors, mainly heterocyclic compounds have been reported to be one of the most effective methods for against corrosion because they can easily adsorb on metallic surface via their molecular structures P, O, S, N, π-electrons and aromatic rings [ 1 , 2 , 3 , 4 , 5 ]. Many of these heterocyclic compounds are obtained efficiently using easy-access synthesis pathways and are usually used at lower concentrations during the corrosion inhibition process [ 6 , 7 , 8 ]. Among this group of heterocyclic compounds, we find Hexachlorocyclotriphosphazene.…”

Section: Introductionmentioning

confidence: 99%

Anticorrosive properties of Hexa (3-methoxy propan-1,2-diol) cyclotri-phosphazene compound for carbon steel in 3% NaCl medium: gravimetric, electrochemical, DFT and Monte Carlo simulation studies

Dagdag

Harfi

Gouri

et al. 2019

Heliyon

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The corrosion inhibition performance of Hexa (3-methoxy propan-1,2 diol) cyclotriphosphazene (HMC) on carbon steel in 3% NaCl solution was investigated by weight loss (WL), potentiodynamic polarization (PDP), electrochemical impedance spectroscopy (EIS) measurements, Density functional theory (DFT) and Monte Carlo (MC) simulation. The corrosion inhibition efficiency at optimum concentration (10−3M) is 99% of HMC at 298 K. The corrosion inhibition efficiency at 10−3 M decreases with increase in temperature. The adsorption of HMC on the surface of carbon steel obeyed Langmuir isotherm. Potentiodynamic polarization study confirmed that inhibitor anodic-type. DFT and Monte Carlo (MC) simulations based computational approaches were under taken to support the experimental findings. DFT studies revealed that HMC interact with metallic surface through donor-acceptor interactions in which the anionic parts act as electron donor (HOMO) and cationic parts behaved as electron acceptor (LUMO). The MC simulations study showed that studied HMC adsorb spontaneously on Fe (110) surface.

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Synthesis of 1,2,3-triazoles in the presence of mixed Mg/Fe oxides and their evaluation as corrosion inhibitors of API 5L X70 steel submerged in HCl

Abstract: The 1-benzyl-4-phenyl-1,2,3-triazoles, synthesised from alkyne–azide cycloaddition in presence of mixed Mg/Fe oxides, exhibited excellent properties as corrosion inhibitors.

Cited by 23 publications

References 59 publications

Epoxy pre-polymers as new and effective materials for corrosion inhibition of carbon steel in acidic medium: Computational and experimental studies

Epoxy pre-polymers as new and effective materials for corrosion inhibition of carbon steel in acidic medium: Computational and experimental studies

Rheological, electrochemical, surface, DFT and molecular dynamics simulation studies on the anticorrosive properties of new epoxy monomer compound for steel in 1 M HCl solution

Anticorrosive properties of Hexa (3-methoxy propan-1,2-diol) cyclotri-phosphazene compound for carbon steel in 3% NaCl medium: gravimetric, electrochemical, DFT and Monte Carlo simulation studies

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