Synthesis of new ionic liquids based on dicationic imidazolium and their anti-corrosion performances

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

doi:10.1016/j.molliq.2019.111230

Cited by 78 publications

(22 citation statements)

References 42 publications

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“…Due to their unique properties, dicationic ILs (DILs) have been widely used in thermal storage [67,129], organic synthesis [130], anti-corrosion [131], or as surface-active agents [132], and they are less toxic than their monocationic counterparts [133]. Figure 16.…”

Section: Dicationic Ilsmentioning

confidence: 99%

Thermal Stability of Ionic Liquids: Current Status and Prospects for Future Development

Cheng

2021

Processes

111

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Ionic liquids (ILs) are the safest solvent in various high-temperature applications due to their non-flammable properties. In order to obtain their thermal stability properties, thermogravimetric analysis (TGA) is extensively used to analyze the kinetics of the thermal decomposition process. This review summarizes the different kinetics analysis methods and finds the isoconversional methods are superior to the Arrhenius methods in calculating the activation energy, and two tools—the compensation effect and master plots—are suggested for the calculation of the pre-exponential factor. With both parameters, the maximum operating temperature (MOT) can be calculated to predict the thermal stability in long-term runnings. The collection of thermal stability data of ILs with divergent cations and anions shows the structure of cations such as alkyl side chains, functional groups, and alkyl substituents will affect the thermal stability, but their influence is less than that of anions. To develop ILs with superior thermal stability, dicationic ILs (DILs) are recommended, and typically, [C4(MIM)2][NTf2]2 has a decomposition temperature as high as 468.1 °C. For the convenience of application, thermal stability on the decomposition temperature and thermal decomposition activation energy of 130 ILs are summarized at the end of this manuscript.

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Section: Dicationic Ilsmentioning

confidence: 99%

Thermal Stability of Ionic Liquids: Current Status and Prospects for Future Development

Cheng

2021

Processes

111

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“…On the other side, the presence of IS HO 2 CC 1 MImNTf 2 at 35 wt% with respect to the amount of polymer was clearly evidenced in the spectrum of CHT/IS by three transmittance peaks in the range of 1400-1100 cm −1 . It is worth noting that one of these peaks is clearly observed in the spectrum of pristine HO 2 CC 1 MImNTf 2 at 1358 cm −1 and may be ascribed to C-N (stretching vibration) bands in imidazolium rings [42]. The other two peaks at around 1220-1230 cm −1 may tentatively be ascribed to intimate CHT-IS interactions.…”

Section: Resultsmentioning

confidence: 89%

The synergistic effect of an imidazolium salt and benzotriazole on the protection of bronze surfaces with chitosan-based coatings

et al. 2020

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The class of imidazolium salts contains effective anticorrosion additives for metal substrates. This study evaluated the potential of 1-carboxymethyl-3-methylimidazolium bis (trifluoromethylsulfonyl) imide (HO 2 CC 1 MImNTf 2) for application in cultural heritage, exploring it as anticorrosion additive in chitosan-based coatings for the protection of copperbased alloys. Under accelerated corrosion conditions with HCl vapor, the chitosan coating with HO 2 CC 1 MImNTf 2 was less effective than the one with benzotriazole. The coating with a combination of HO 2 CC 1 MImNTf 2 and benzotriazole resulted in the optimal protective efficacy of the bronze surface, and it also maintained high transparency without changing the bronze appearance.

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“…Three new corrosion inhibitors based on dynamic imidazole (IL1, IL2, and IL3) were synthesized in paper [18], with their effectiveness reaching 91.5 %, 98.4 %, and 83.3 %, respectively. However, the unresolved issue is the high price of the inhibitor at its relatively significant consumption in the corrosive environment.…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

“…Thus, our analysis of works [12][13][14][15][16][17][18] allows us to conclude that up to now the issues related to the development of highly effective, and affordable, metal corrosion inhibitors in water-organic environments have remained insufficiently studied.…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

Synthesis of high-effective steel corrosion inhibitors in water-oil mixtures

Gomelya

Трус

Stepova

et al. 2020

EEJET

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The duration of equipment operation depends on the aggressiveness of the media. The corrosion rate is much higher at the elevated concentration of carbon dioxide and hydrogen sulfide. Water, together with the corrosion-active gases dissolved in it, brings the intensive local corrosion damage to steels 20 and St37-2, which are the most common structural materials in the petrochemical and oil and gas extracting industries [2].Mine waters in oil production processes are characterized by high concentrations of mineral salts [3,4]. This results in their high corrosion activity and propensity for IntroductionThe issue related to the chemical resistance of materials and the protection of metals has remained relevant given the permanent corrosion losses by Ukraine's metal fund, which causes significant material losses in various sectors of industry. Corrosion accounts for 40-70 % in the premature destruction of steel structures, which leads to anthropogenic accidents and catastrophes, as well as to the loss of billions of tons of articles. The corrosion-related issues are acute in the chemical, petrochemical, and oil-producing industries [1].

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Synthesis of new ionic liquids based on dicationic imidazolium and their anti-corrosion performances

Cited by 78 publications

References 42 publications

Thermal Stability of Ionic Liquids: Current Status and Prospects for Future Development

Thermal Stability of Ionic Liquids: Current Status and Prospects for Future Development

The synergistic effect of an imidazolium salt and benzotriazole on the protection of bronze surfaces with chitosan-based coatings

Synthesis of high-effective steel corrosion inhibitors in water-oil mixtures

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