Ionic liquids as green and sustainable corrosion inhibitors for metals and alloys: An overview

Verma, Chandrabhan; Ebenso, Eno E.; Quraishi, M.A.

doi:10.1016/j.molliq.2017.02.111

Cited by 455 publications

(140 citation statements)

References 126 publications

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“…Their adsorption on metallic surfaces takes place via chemisorption, which obeys the Langmuir adsorption isotherm as reported by Verma et al [92] in their recent review, which showed several ionic liquids and their properties as green corrosion inhibitors for different metals and alloys such as mild steel, aluminum, copper, zinc, and magnesium in several electrolytic media. A similar observation has been reported by other authors for different metals including copper, nickel, and stainless steel [93], while Shetty et al [94] have reviewed adsorption of ionic liquids on an aluminum surface that obeyed the Temkin adsorption isotherm.…”

Section: Green Corrosion Inhibitor Based On Ionic Liquidssupporting

confidence: 65%

Green Corrosion Inhibitors, Past, Present, and Future

Shehata¹,

Korshed²,

Attia³

2018

Corrosion Inhibitors, Principles and Recent Applications

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Green corrosion inhibitors are of interest because there has been an increase in environmental awareness and a change in regulations that restrict regular corrosion inhibitors due to their toxicity. Natural products are a good source of green corrosion inhibitors, where most of their extracts containing the necessary elements such as O, C, N, and S, which are active in organic compounds, assist in adsorption of these compounds on metals or alloys to form a film that protects the surface and hinders corrosion. Numerous natural products and their application in different processes, especially in steel reinforcement embedded in concrete, are discussed. Development of green chemistry and green chemical technologies offers novel synthetic methods for ionic liquids, which are considered as new corrosion green inhibitors, and their mechanism of adsorption, how these green inhibitors act in different media, and their protective role for different metals and alloys are discussed. Finally, industrial applications of vapor-phase inhibitors and their mechanisms are presented.

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Section: Green Corrosion Inhibitor Based On Ionic Liquidssupporting

confidence: 65%

Green Corrosion Inhibitors, Past, Present, and Future

Shehata¹,

Korshed²,

Attia³

2018

Corrosion Inhibitors, Principles and Recent Applications

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“…They have received increased attention as a new alternative reaction media for chemical, catalytic and biocatalytic reactions, and they were shown to be excellent solvents for protein refolding and crystallization . They can also be used, for example, as lubricant additives or corrosion inhibitors for metals and alloys . They are considered to be among the most promising electrolytes for the development of lithium‐ion batteries .…”

Section: Introductionmentioning

confidence: 99%

Clay Minerals—Ionic Liquids, Nanoarchitectures, and Applications

Dedzo

Detellier

2017

Adv Funct Materials

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Clay minerals, whose world resources are extremely large, have the potential to be more exploited as the basis for functional materials. Of interest are their interactions with ionic liquids (ILs). These compounds have found a large number of applications in the last few decades due to unique properties, such as low vapor pressure, high thermal stability, and remarkable solvation abilities. In the case of the swelling smectites, the organic cation of ILs can replace interlayer cations and find applications in the preparation of nanocomposites. This feature article is mainly focused on kaolinite, a nonswelling 1:1 phyllosilicate, whose layers are essentially neutral. Consequently, the intercalation of ILs involves both cation and anion. The organic cations can be designed to bear hydroxyl groups that will react with the aluminol internal surface of kaolinite, resulting in ionic liquids not only intercalated but also grafted. The resulting nanohybrid materials are characterized by a fixed, rigid, constrained 2D structure, whose dimension can be tuned by the size of the organic cation, whereas the anion is exchangeable. These materials are used for sensing applications such as the specific detection of anions as well as their quantitative analysis. They are also used as catalyst support for nanoparticles.

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“…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]. Results of SEM (Scanning Electron Microscope) were shown in figure 12 [33].…”

Section: Surface Studiesmentioning

confidence: 78%

“…Mild steel is widely inconceivably utilized in the pipelines industries, automobiles manufacture, oil and gas transportation industries due to its low tensile firmness, durability and price [1][2][3][4][5][6]. When it comes in the contact with the traces of water and salts present in the oil tanks, pipelines and with the acids which are used to remove the oxide layer and rust surface during the acid pickling, it starts getting corroded.…”

Section: Introductionmentioning

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

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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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Ionic liquids as green and sustainable corrosion inhibitors for metals and alloys: An overview

Cited by 455 publications

References 126 publications

Green Corrosion Inhibitors, Past, Present, and Future

Green Corrosion Inhibitors, Past, Present, and Future

Clay Minerals—Ionic Liquids, Nanoarchitectures, and Applications

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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