Inhibition of acid corrosion of carbon steel using four imidazolium tetrafluoroborates ionic liquids

Deyab, M.A.; Zaky, Magdy T.; Nessim, M.I.

doi:10.1016/j.molliq.2016.12.092

Cited by 121 publications

(34 citation statements)

References 41 publications

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“…Moreover, the shifting of E corr to a positive direction for all TOE extract concentrations confirms that this extract works predominantly as an anodic inhibitor 61 . Further, the b c and b a vary upon addition of TOE extract, which confirms that the TOE extract molecules are adsorbed on carbon steel surface including anodic and cathodic areas 62 .…”

Section: Toe Concentration (Mg Lsupporting

confidence: 57%

“…The inhibitor effect is also controlled by the dipole moment of the inhibitor 65 : high dipole moments influence the dielectric characteristics of the electrical double layer, which, in turn, reduces the rate of electrochemical reactions 65 . The organic compounds contained in TOE have higher dipole moments than water; therefore these compounds easily replace water molecules at the surface of the metal sheet 61 . Ansari et al 64 commented that the inhibition is associated with the sorption of inhibitor molecules through:…”

Section: Surface Observation and Analysis The Surface Morphology Of mentioning

confidence: 99%

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Enhancement of corrosion resistance of the cooling systems in desalination plants by green inhibitor

Deyab

Guibal²

2020

Sci Rep

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Taraxacum officinale extract (toe) has been tested for preventing the corrosion of cooling systems in desalination plants. The inhibition of corrosion effects has been characterized by chemical and electrochemical methods (Mass loss, potentiodynamic polarization and electrochemical impedance spectroscopy) and surface observations. tests on cooling systems were carried out in seawater environment. the presence of toe in the re-circulation loop decreases the corrosion of carbon steel by adsorption of toe compounds on the surface of metal pipes. the optimum toe concentration was reached at 400 mg L −1 and the inhibition efficiency was higher than 94%. TOE allowed increasing the energy barrier of the corrosion process. SEM, FT-IR and UV spectra observations confirmed that TOE prevents corrosion attacks at the surface of the pipes. HPLC analyses identified the presence of saccharides, organic acids, phenol antioxidant and caffeic acid derivatives in TOE, which may be the active promoters of corrosion inhibition. www.nature.com/scientificreports www.nature.com/scientificreports/ R ct cto ct where R ct and R cto are the charge transfer resistances in the presence and absence of TOE, respectively. Compound Concentration (mg L −1 )

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Section: Toe Concentration (Mg Lsupporting

confidence: 57%

Section: Surface Observation and Analysis The Surface Morphology Of mentioning

confidence: 99%

Enhancement of corrosion resistance of the cooling systems in desalination plants by green inhibitor

Deyab

Guibal²

2020

Sci Rep

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“…It is clear from the data that inhibition efficiency (IE %) increases with increasing concentration of inhibitor [20].…”

Section: Electrochemical Impedance Spectroscopymentioning

confidence: 90%

Synthesis and Study of Good’s Buffer Ionic Liquid as Corrosion Inhibitor for Carbon Steel in Acidic Medium

2018

Dec. 14-15, 2017 Kuala Lumpur (Malaysia)

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“…In the anodic polarization, potential shift towards the more positive value while in the case of cathodic polarization, potential shifts towards the negative value which shows that the inhibitor is a mixed type inhibitor. From which it can be anticipated that the inhibition of corrosion on the mild steel takes place by inhibiting the active site of corrosion [40][41][42][43][44][45][46][47][48][49][50].…”

Section: Potentiodynamic Polarization Studiesmentioning

confidence: 99%

“…Surface morphological studies were done by using SEM instrument analysis. Three samples of mild steel were analysed in which one was in the pure form, the second was immersed in 1 M H 2 SO 4 and the third sample was immersed in acid with inhibitor MPII [41,[68][69][70][71][72]. The SEM images clearly indicates the surface of mild steel with inhibitor was smooth as compared with the other two mild steel samples in pure form and immersed in 1 M H 2 SO 4 which confirms the formation of an inhibitive layer on the surface of mild steel [73,74].…”

Section: Surface Studiesmentioning

confidence: 99%

Experimental and computational studies of imidazolium based ionic liquid 1-methyl- 3-propylimidazolium iodide on mild steel corrosion in acidic solution

Parveen

Bashir

Thakur

et al. 2019

Mater. Res. Express

113

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Corrosion inhibitive property of ionic liquid 1-Methyl-3-propylimidazolium iodide (MPII) on Mild Steel in 1 M H 2 SO 4 was investigated by experimental and computational Studies. The inhibition efficiency of inhibitor MPII at various concentrations, temperature and time duration were studied by gravimetric measurements, potentiodynamic polarization techniques, electrochemical impedance spectroscopy (EIS), surface studies and computational studies. The results from potentiodynamic polarization studies revealed that inhibitor 1-Methyl-3-propylimidazolium iodide acts as a mixed type inhibitor with a high inhibition efficiency of 91% at 298 K. Adsorption of the inhibitor on the surface of mild steel follows the Langmuir adsorption isotherm. The mechanism of adsorption was also validated by quantum chemical studies. Morphology and topography of the Mild Steel surface with and without the inhibitor were investigated by SEM. Thermodynamic parameters for adsorption like adsorption equilibrium (K ads ), DH , ads DS , ads Free energy of adsorption i.e. ΔG ads were also calculated so as to project the mechanism of adsorption. Computational data obtained from the Density functional theory (DFT) were used to acquire detailed theoretical insights. Appreciably Electrochemical impedance spectroscopy, Molecular dynamic simulation and quantum chemical calculation confirms the interaction of inhibitor with metal which leads to increases in inhibition efficiency.

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Inhibition of acid corrosion of carbon steel using four imidazolium tetrafluoroborates ionic liquids

Cited by 121 publications

References 41 publications

Enhancement of corrosion resistance of the cooling systems in desalination plants by green inhibitor

Enhancement of corrosion resistance of the cooling systems in desalination plants by green inhibitor

Synthesis and Study of Good’s Buffer Ionic Liquid as Corrosion Inhibitor for Carbon Steel in Acidic Medium

Experimental and computational studies of imidazolium based ionic liquid 1-methyl- 3-propylimidazolium iodide on mild steel corrosion in acidic solution

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