Green processing using ionic liquids and CO2

Blanchard, Lynnette A.; Hâncu, Dan; Beckman, Eric J.; Brennecke, Joan F.

doi:10.1038/19887

Cited by 1,862 publications

(1,330 citation statements)

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“…The physical and chemical properties of ILs could also be readily tuned via varying the nature of cations/anions, which have found applications in dye-sensitized solar cells, 16 LIBs 17 and green solvents. 18 In this report, we demonstrate a pyrite photocapacitor that is capable of cyclic charge-discharge with an energy density of 1.13 Â 10 4 J g À1 . The device utilizes ionic liquids to passivate surface states on the pyrite nanocrystals to enhance carrier lifetime, which is characterized using ultrafast pump-probe measurements.…”

mentioning

confidence: 76%

Ionic-passivated FeS2 photocapacitors for energy conversion and storage

et al. 2013

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confidence: 76%

Ionic-passivated FeS2 photocapacitors for energy conversion and storage

et al. 2013

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“…In a study by Amde et al, the 1-hexyl-3-methylimidazolium hexafluorophosphate ([C 6 MIM + ][PF 6 − ]) IL was mixed with zinc oxide nanofluid (NF) to extract fungicides from aqueous solutions using DI-SDME [21]. The combination of the [C 6 MIM + ][PF 6 − ] IL and 0.01% ZnO NF produced a synergetic response improving extraction efficiencies.…”

Section: Ionic Liquids In Single Drop Microextractionmentioning

confidence: 99%

“…The combination of the [C 6 MIM + ][PF 6 − ] IL and 0.01% ZnO NF produced a synergetic response improving extraction efficiencies. Compared to other reported techniques for the extraction of fungicides the IL-NF-DI-SDME approach produced high enrichment factor (E F ) values ranging from 764 to 984.…”

Section: Ionic Liquids In Single Drop Microextractionmentioning

confidence: 99%

“…Ge et al investigated the extraction of chlorophenols using the 1-hexyl-3-methylimidazolium tris(pentafluoroethyl)trifluorophosphate ([C 6 MIM + ][FAP − ]) IL immobilized in the pores of a hollow fiber [33]. The chlorophenols were detected using HPLC with a dual wavelength detector.…”

Section: Ionic Liquids In Hollow Fiber Membrane Liquid-phase Microextmentioning

confidence: 99%

“…The first report of classical DLLME using ILs as extraction solvents was by Liu and coworkers for the analysis of heterocyclic insecticides in real water samples [55]. The hydrophobic 1-hexyl-3-methylimidazolium hexafluorophosphate ([C 6 MIM + ][PF 6 − ]) IL was employed as the extraction solvent with methanol as the disperser solvent. This study introduced a simple and environmentally friendly IL-DLLME approach that utilized low amounts of sample, provided high enrichment factors (E F > 200), and resulted in limits of detection as low as 0.53…”

Section: Classical Il-dllmementioning

confidence: 99%

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Ionic liquids: solvents and sorbents in sample preparation

Clark

Emaus

Varona

et al. 2017

J of Separation Science

140

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The applications of ionic liquids (ILs) and IL-derived sorbents are rapidly expanding. By careful selection of the cation and anion components, the physicochemical properties of ILs can be altered to meet the requirements of specific applications. Reports of IL solvents possessing high selectivity for specific analytes are numerous and continue to motivate the development of new IL-based sample preparation methods that are faster, more selective, and environmentally benign compared to conventional organic solvents. The advantages of ILs have also been exploited in solid/polymer formats in which ordinarily nonspecific sorbents are functionalized with IL moieties in order to impart selectivity for an analyte or analyte class. Furthermore, new ILs that incorporate a paramagnetic component into the IL structure, known as magnetic ionic liquids (MILs), have emerged as useful solvents for bioanalytical applications. In this rapidly changing field, this Review focuses on the applications of ILs and IL-based sorbents in sample preparation with a special emphasis on liquid phase extraction techniques using ILs and MILs, IL-based solid-phase extraction, ILs in mass spectrometry, and biological applications. K E Y W O R D Salternative solvents, ionic liquids, magnetic ionic liquids, microextraction, sample preparation

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Supercritical Phase Catalysis—Heterogeneous

Subramaniam¹,

Ford²

2010

Encyclopedia of Catalysis

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The potential applications of supercritical reaction media in heterogeneous catalysis have greatly expanded in recent years to include industrially significant reactions such as selective catalytic oxidations (fine and agricultural chemicals), fixed‐bed hydrogenations (pharmaceuticals, chemical intermediates), polymerizations, hydroformylations (petrochemical), and solid‐acid catalyzed alkylations (petroleum refining). The near‐critical region (roughly 1.05‐1.2 Tc; and 0.9 ‐ 2.0 Pc) provides access to unique fluid properties (liquid‐like densities and gas‐like transport properties) that have been exploited in heterogeneous catalytic systems in numerous ways such as these: eliminating oxygen or hydrogen solubility limitations in the liquid phase of multiphase reaction systems; enhanced desorption and transport of heavy molecules (such as coke precursors) in mesoporous catalysts alleviating pore‐diffusion limitations and improving catalyst effectiveness; in situ removal of primary reaction products maximizing their selectivity; enhanced heat capacity ameliorating the problem of parametric sensitivity in exothermic fixed‐bed reactors; and facile separation of reactants and products. Supercritical reaction systems are thus excellent examples of the ‘multifunctional reactor’ concept. This chapter provides an overview of recent advances in each of these areas including fundamental and experimental aspects. Barriers and challenges confronting application of CO2‐based processes in industrial catalysis, and advances in overcoming these barriers are highlighted.

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Green processing using ionic liquids and CO2

Cited by 1,862 publications

References 0 publications

Ionic-passivated FeS2 photocapacitors for energy conversion and storage

Ionic-passivated FeS2 photocapacitors for energy conversion and storage

Ionic liquids: solvents and sorbents in sample preparation

Supercritical Phase Catalysis—Heterogeneous

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