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• W2909822057 endingPage "3973" @default.
• W2909822057 startingPage "3962" @default.
• W2909822057 abstract "A novel heterogeneous catalyst was synthesized by immobilization of a carboxylic acid- and imidazolium-based ionic liquid on the mesoporous MIL–101(Cr) (MIL–101(Cr)–TSIL) and used to convert abundant, nontoxic, economical and renewable CO2 gas to cyclic carbonates without the need for a cocatalyst or a solvent. The catalyst was characterized in detail by multiple techniques such as XRD, TEM, SEM, EDX, DR-FTIR, solid-state NMR, as well as N2 and CO2 adsorption measurements. The catalytic properties were studied by varying different parameters including amount of catalyst and epoxide, temperature, pressure, and reaction time. Under optimal conditions (100 mg catalyst, 15 mmol epoxide, 2.0 MPa CO2 pressure, 110 °C and 2 h reaction time) various cyclic carbonates were obtained with high yield and selectivity. MIL–101(Cr)–TSIL catalyst displayed good thermal stability and could be reused after simple separation without a significant decrease in its catalytic activity. Due to synergetic effect of the hydrogen bond from the carboxylic acid group for activation of the C–O bond of the epoxide, adsorption of CO2 by the imidazolium moiety, and high concentration of CO2 around the task specific ionic liquid (TSIL), arisen from the mesoporous framework, MIL–101(Cr)–TSIL is a highly effective catalytic system for the solvent-free cycloaddition of CO2 with epoxide." @default.
• W2909822057 created "2019-01-25" @default.
• W2909822057 creator A5004538394 @default.
• W2909822057 creator A5006177644 @default.
• W2909822057 creator A5019770634 @default.
• W2909822057 creator A5030300230 @default.
• W2909822057 creator A5042402379 @default.
• W2909822057 creator A5056372253 @default.
• W2909822057 creator A5074957781 @default.
• W2909822057 creator A5087098727 @default.
• W2909822057 date "2019-01-16" @default.
• W2909822057 modified "2023-10-14" @default.
• W2909822057 title "Task-Specific Ionic Liquid Functionalized–MIL–101(Cr) as a Heterogeneous and Efficient Catalyst for the Cycloaddition of CO₂ with Epoxides Under Solvent Free Conditions" @default.
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• W2909822057 doi "https://doi.org/10.1021/acssuschemeng.8b05226" @default.

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