Thermal and kinetic analysis of pure and contaminated ionic liquid: 1-butyl-2.3-dimethylimidazolium chloride (BDMIMCl)

Ali, Muhammad Intizar

doi:10.1515/pjct-2016-0038

Cited by 5 publications

(2 citation statements)

References 22 publications

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“…In addition, results summarized in Figure 9 show Tonset of bulk ILs are significantly higher than the Tonset of γ-Al2O3-supported ILs, indicating the interactions of ILs with γ-Al2O3 control their thermal stability limits [58]. Putting 20% NH4Cl into [BMMIM][Cl] reduces the thermal stability [86], and Tonset of commercial [P6, 6,6,14][Cl] is 8 °C lower than its pure counterpart [40]. Both studies mean the existence of impurities alters the thermal stability of ILs.…”

Section: Gas Atmospherementioning

confidence: 99%

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

Cheng

2021

Processes

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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: Gas Atmospherementioning

confidence: 99%

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

Cheng

2021

Processes

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“…This bond is very stable, thus contributing to high thermal stability of dicationic ILs. Until now, numerous studies reported the thermal pyrolysis of kinetic study for mono- and dicationic imidazolium-based ILs [ 12 , 20 , 21 ]. However, the thermal kinetic data for ILs with non-aromatic rings, especially pyrrolidinium-based ILs, is still scarce, although these types of ILs have been applied in numerous applications.…”

Section: Introductionmentioning

confidence: 99%

Thermal Kinetics of Monocationic and Dicationic Pyrrolidinium-Based Ionic Liquids

et al. 2022

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This work presents an in-depth kinetic thermal degradation comparison between traditional monocationic and the newly developed dicationic ionic liquid (IL), both coupled with a bromide (Br−) anion by using non-isothermal thermogravimetric analysis. Thermal analyses of 1-butyl-1-methylpyrrolidinium bromide [C4MPyr][Br] and 1,4-bis(1-methylpyrrolidinium-1-yl)butane dibromide [BisC4MPyr][Br2] were conducted at a temperature range of 50–650 °C and subjected to various heating rates, which are 5, 10, 15, 20 and 25 °C/min. Thermogravimetric analysis revealed that dicationic IL, [BisC4MPyr][Br2] is less thermally stable compared to monocationic [C4MPyr][Br]. A detailed analysis of kinetic parameters, which are the activation energy (Ea) and pre-exponential factor (log A), was calculated by using Kissinger-Akahira-Sunose (KAS), Flynn-Wall-Ozawa (FWO) and Starink. This study revealed that the average Ea and log A of [BisC4MPyr][Br2] are lower than [C4MPyr][Br], which may be contributed to by its low thermal stability. Conclusively, it proved that the Ea and log A of ILs are strongly related to the thermal stability of ILs.

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Analysis of thermal stability and pyrolysis kinetic of dibutyl phosphate-based ionic liquid through thermogravimetry, gas chromatography/mass spectrometry, and Fourier transform infrared spectrometry

Jiang

Lin

Hua

et al. 2019

J Therm Anal Calorim

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Thermal and kinetic analysis of pure and contaminated ionic liquid: 1-butyl-2.3-dimethylimidazolium chloride (BDMIMCl)

Cited by 5 publications

References 22 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

Thermal Kinetics of Monocationic and Dicationic Pyrrolidinium-Based Ionic Liquids

Analysis of thermal stability and pyrolysis kinetic of dibutyl phosphate-based ionic liquid through thermogravimetry, gas chromatography/mass spectrometry, and Fourier transform infrared spectrometry

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