Exploring the influence of the type of anion in imidazolium ionic liquids on its thermal stability

Zhang, Li-Yu; Liu, Shang-Hao; Wang, Yin

doi:10.1007/s10973-023-12037-z

Cited by 11 publications

(5 citation statements)

References 54 publications

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Section: Thermal Stability Of Il-go Il-fg-1 and Il-fg-2supporting

confidence: 93%

“…This is consistent with the previous thermogravimetric analysis results [10]. According to literature reports, the products obtained from IL decomposition are mainly boron trifluoride, hydrogen fluoride, methyl fluoride, and 1-butene [45]. The thermal analysis test results show that adding additives has little effect on the thermal stability of the ionic liquid, and the quality below 300 • C does not decrease and remains stable.…”

Section: Thermal Stability Of Il-go Il-fg-1 and Il-fg-2supporting

confidence: 91%

“…As shown in Figure 5, three kinds of nanofluids decompose at close to 400 • C. Combined with the thermal analysis diagram in Figure 4, it can be understood that GO and FG nanosheets are more stable and begin to decompose at close to 500 • C. Thus, in Figure 5, it is the ionic liquid that is breaking down around 400 • C. This is consistent with the previous thermogravimetric analysis results [10]. According to literature reports, the products obtained from IL decomposition are mainly boron trifluoride, hydrogen fluoride, methyl fluoride, and 1-butene [45].…”

Section: Thermal Stability Of Il-go Il-fg-1 and Il-fg-2supporting

confidence: 88%

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The Preparations of Fluorographene Nanosheets and Research in Tribological Properties in High Vacuum

Zhang

Gao

et al. 2023

Materials

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In this study, fluorographene nanosheets (FG nanosheets) were prepared via the solvent-ultrasonic exfoliation method. The fluorographene sheets were observed using field-emission scanning electron microscopy (FE-SEM). The microstructure of the as-prepared FG nanosheets was characterized by X-ray diffraction (XRD) and a thermal analyzer (TG). The tribological properties of FG nanosheets as an additive in ionic liquids in high vacuum were compared to that of ionic liquid (IL) with graphene (IL-G). The wear surfaces and transfer films were analyzed via an optical microscope, Raman spectroscopy, scanning electron microscopy (SEM), and X-ray photoelectron spectroscopy (XPS). The results show that FG nanosheets can be obtained from the simple solvent-ultrasonic exfoliation method. The prepared G nanosheets are a sheet, and the longer the ultrasonic time is, the thinner the sheet is. Ionic liquids with FG nanosheets had low friction and a low wear rate under high vacuum conditions. The improved frictional properties were attributed to the transfer film of FG nanosheets and more formation film of Fe-F.

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Section: Thermal Stability Of Il-go Il-fg-1 and Il-fg-2supporting

confidence: 93%

Section: Thermal Stability Of Il-go Il-fg-1 and Il-fg-2supporting

confidence: 91%

Section: Thermal Stability Of Il-go Il-fg-1 and Il-fg-2supporting

confidence: 88%

See 1 more Smart Citation

The Preparations of Fluorographene Nanosheets and Research in Tribological Properties in High Vacuum

Zhang

Gao

et al. 2023

Materials

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“…It was proposed that the more complex the decomposition mechanism of the ILs, the better the thermal stability [33]. (2) Imidazolium-based ILs exhibit higher thermal stability than tetraalkyl ammonium-, piperidinium-, and pyridinium-based ILs, owing to compact structure provided by the imidazolium ring, higher intermolecular interactions, a smaller free volume, and low steric hindrance [23,34].…”

Section: Thermal Stabilitymentioning

confidence: 99%

“…It was proposed that the more complex the decomposition mechanism of the ILs, the better the thermal stability [33].…”

Section: Thermal Stabilitymentioning

confidence: 99%

The Application of Ionic Liquids in the Lubrication Field: Their Design, Mechanisms, and Behaviors

Liu,

Ni,

Zhang

et al. 2024

Lubricants

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Ionic liquids (ILs) are molten organic salts consisting of organic cations and weakly coordinating organic/inorganic anions at room temperature. ILs have excellent physical and chemical properties such as high thermal stability, high combustible temperature, high miscibility with organic compounds and so on, making them good candidates for high performance lubricants and lubricant additives. The functional designability of ILs makes them novel lubrication materials that can break through the bottleneck of the active control of friction and lubrication. This paper firstly briefly introduces how to design the physical and chemical properties of the ILs required for different friction conditions by bonding specific cations with anions. Then, the lubrication mechanisms of ILs as base lubricants and additives for oils and water are focused on. The correlation between the structure of ILs and the lubrication results are established, which can guide the structural design of ILs in different applications. The response behaviors of friction characteristics under external electric fields are analyzed, which can provide a theoretical basis for the intelligent control of friction based on ILs.

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Experimental investigation of isobaric heat capacity and viscosity for suspensions of alumina nanoparticles in [C4mim][BF4] ionic liquid

Cherecheş

Bejan²,

Ibănescu

et al. 2023

J Therm Anal Calorim

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Exploring the influence of the type of anion in imidazolium ionic liquids on its thermal stability

Cited by 11 publications

References 54 publications

The Preparations of Fluorographene Nanosheets and Research in Tribological Properties in High Vacuum

The Preparations of Fluorographene Nanosheets and Research in Tribological Properties in High Vacuum

The Application of Ionic Liquids in the Lubrication Field: Their Design, Mechanisms, and Behaviors

Experimental investigation of isobaric heat capacity and viscosity for suspensions of alumina nanoparticles in [C4mim][BF4] ionic liquid

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