From Solvent to Sustainable Catalysis - Chloroferrate Ionic Liquids in Synthesis

Bica, Katharina; Leder, Sonja; Gaertner, Peter

doi:10.2174/1570179411108060824

Cited by 5 publications

(5 citation statements)

References 71 publications

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“…The peak at 420 cm −1 would imply that there could be a laser‐induced dimerization form such as [Fe 2 Cl 7 ] − . [ 43 ] However, no corresponding peak was observed at 370 cm −1 .…”

Section: Resultsmentioning

confidence: 99%

Elucidating the Iron‐Based Ionic Liquid [C₄py][FeCl₄]: Structural Insights and Potential for Nonaqueous Redox Flow Batteries

Balischewski,

Bhattacharyya,

Bailey

et al. 2023

Adv Funct Materials

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In this study, a low‐melting organic‐inorganic crystalline ionic liquid compound, N‐butyl pyridinium tetrachlorido ferrate (III) is described. The material can easily be synthesized using a one‐pot approach in an ionic liquid medium. Single‐crystal X‐ray diffraction confirms that the basic inorganic block is [FeCl4]−, which is counterbalanced by an N‐butyl pyridinium cation. The compound exhibits a melting point of 37.6 °C by differential scanning calorimetry, which is among the lowest values for a pyridinium‐based metal‐containing ionic liquid. The material shows promising electrochemical behavior at room temperature in both aqueous and nonaqueous solvents, and at elevated temperatures in its pure liquid state. Given its appreciable solubility in both water and acetonitrile, the compound can act as a redox‐active species in a supporting electrolyte for redox flow battery applications. These classes of low‐melting ionic solids with long‐range order and interesting electrochemical applications are potential candidates for a range of green energy storage and harvesting systems.

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“…The peak at 420 cm −1 would imply that there could be a laser‐induced dimerization form such as [Fe 2 Cl 7 ] − . [ 43 ] However, no corresponding peak was observed at 370 cm −1 .…”

Section: Resultsmentioning

confidence: 99%

Elucidating the Iron‐Based Ionic Liquid [C₄py][FeCl₄]: Structural Insights and Potential for Nonaqueous Redox Flow Batteries

Balischewski,

Bhattacharyya,

Bailey

et al. 2023

Adv Funct Materials

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“…Iron-based ionic liquids are interesting components not only because they are magnetic 55 or catalytically active. 30,56,57 They can also serve as powerful solvents for biomass conversion. 29 29 This process results in a monolithic carbon ionogel.…”

Section: Discussionmentioning

confidence: 99%

“…Iron-based ionic liquids are interesting components not only because they are magnetic 55 or catalytically active. 30,56,57 They can also serve as powerful solvents for biomass conversion. 29 [Bmim][FeCl 4 ] has been used as precursor for iron/iron carbide and graphene-type materials synthesis in the presence of an inorganic template.…”

Section: Discussionmentioning

confidence: 99%

Mesoporous graphite nanoflakes via ionothermal carbonization of fructose and their use in dye removal

et al. 2014

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The large-scale green synthesis of graphene-type two-dimensional materials is still challenging. Herein, we describe the ionothermal synthesis of carbon-based composites from fructose in the iron-containing ionic liquid 1-butyl-3-methylimidazolium tetrachloridoferrate(III), [Bmim][FeCl₄] serving as solvent, catalyst, and template for product formation. The resulting composites consist of oligo-layer graphite nanoflakes and iron carbide particles. The mesoporosity, strong magnetic moment, and high specific surface area of the composites make them attractive for water purification with facile magnetic separation. Moreover, Fe₃C-free graphite can be obtained via acid etching, providing access to fairly large amounts of graphite material. The current approach is versatile and scalable, and thus opens the door to ionothermal synthesis towards the larger-scale synthesis of materials that are, although not made via a sustainable process, useful for water treatment such as the removal of organic molecule

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“…Catalytic applications of chloroferrates(III) were reviewed in 2011 by Bica and co-workers [ 68 ]. Their mild Lewis acidity is combined with interesting physical properties: thermomorphic behavior with water (thermally induced demixing) [ 39 , 69 ] and paramagnetic behavior [ 70 , 71 ], which were both suggested as routes for facile separation and recycling.…”

Section: Chlorometallate Ionic Liquidsmentioning

confidence: 99%

Lewis Acidic Ionic Liquids

2017

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Until very recently, the term Lewis acidic ionic liquids (ILs) was nearly synonymous with halometallate ILs, with a strong focus on chloroaluminate(III) systems. The first part of this review covers the historical context in which these were developed, speciation of a range of halometallate ionic liquids, attempts to quantify their Lewis acidity, and selected recent applications: in industrial alkylation processes, in supported systems (SILPs/SCILLs) and in inorganic synthesis. In the last decade, interesting alternatives to halometallate ILs have emerged, which can be divided into two sub-sections: (1) liquid coordination complexes (LCCs), still based on halometallate species, but less expensive and more diverse than halometallate ionic liquids, and (2) ILs with main-group Lewis acidic cations. The two following sections cover these new liquid Lewis acids, also highlighting speciation studies, Lewis acidity measurements, and applications.

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From Solvent to Sustainable Catalysis - Chloroferrate Ionic Liquids in Synthesis

Cited by 5 publications

References 71 publications

Elucidating the Iron‐Based Ionic Liquid [C₄py][FeCl₄]: Structural Insights and Potential for Nonaqueous Redox Flow Batteries

Elucidating the Iron‐Based Ionic Liquid [C₄py][FeCl₄]: Structural Insights and Potential for Nonaqueous Redox Flow Batteries

Mesoporous graphite nanoflakes via ionothermal carbonization of fructose and their use in dye removal

Lewis Acidic Ionic Liquids

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From Solvent to Sustainable Catalysis - Chloroferrate Ionic Liquids in Synthesis

Cited by 5 publications

References 71 publications

Elucidating the Iron‐Based Ionic Liquid [C4py][FeCl4]: Structural Insights and Potential for Nonaqueous Redox Flow Batteries

Elucidating the Iron‐Based Ionic Liquid [C4py][FeCl4]: Structural Insights and Potential for Nonaqueous Redox Flow Batteries

Mesoporous graphite nanoflakes via ionothermal carbonization of fructose and their use in dye removal

Lewis Acidic Ionic Liquids

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Product

Resources

About

Elucidating the Iron‐Based Ionic Liquid [C₄py][FeCl₄]: Structural Insights and Potential for Nonaqueous Redox Flow Batteries

Elucidating the Iron‐Based Ionic Liquid [C₄py][FeCl₄]: Structural Insights and Potential for Nonaqueous Redox Flow Batteries