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• W4223997473 endingPage "115045" @default.
• W4223997473 startingPage "115045" @default.
• W4223997473 abstract "The recent increase in CO2 levels has had an extensive impact on the environment; hence an effective catalyst for chemical CO2 fixation into value-added products is demanded. This work demonstrates a simple approach towards the chemical fixation of CO2 to cyclic carbonates without solvent, metal and additives using one-pot synthesized tri-functional-imidazolium bromide ionic liquid. Herein, synthesized tri-functional-imidazolium-based ionic liquids, namely 3-(2-hydroxyethyl)-1-vinyl-1H-imidazole-3-ium bromide ([VIMEtOH][Br] (24 and 72 h)), 3-(2-hydroxyethyl)-1-vinyl-1H-imidazole-3-ium hydroxyl ([VIMEtOH][OH]) and poly 3-(2-hydroxyethyl)-1-vinyl-1H-imidazole-3-ium bromide (poly [VIMEtOH][Br]), were used for the comprehensive investigation of chemical fixation of CO2 into cyclic carbonates and their physiochemical properties. In case of [VIMEtOH][Br] ionic liquid, it displayed time-dependent synthesis dissolution in the reaction system. This study found that [VIMEtOH][Br]-72 ionic liquid is not dissolved in the reaction system. The effect on the catalytic efficiency of the presence of functional groups in ionic liquids such as N-vinyl (-CC-N), acidic proton of imidazolium (-C (2)-H) and hydroxyl (-OH) along with bromide anion and the reaction conditions are systematically investigated. For CO2 fixation, 99.6% conversion of propylene oxide with an excellent selectivity of propylene carbonate (≥99%) over [VIMEtOH][Br]-72 catalyst (at 120 °C, 2 MPa, 2 h) was observed without co-catalyst, metal and solvent. Also, it demonstrated an excellent wide substrates scope of epoxide and all reactions were performed on gram-scalable, which are potential prospects for industrial use." @default.
• W4223997473 created "2022-04-19" @default.
• W4223997473 creator A5042864996 @default.
• W4223997473 creator A5058562100 @default.
• W4223997473 date "2022-07-01" @default.
• W4223997473 modified "2023-10-13" @default.
• W4223997473 title "Efficient imidazolium ionic liquid as a tri-functional robust catalyst for chemical fixation of CO2 into cyclic carbonates" @default.
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• W4223997473 doi "https://doi.org/10.1016/j.jenvman.2022.115045" @default.
• W4223997473 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/35436708" @default.
• W4223997473 hasPublicationYear "2022" @default.
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