SBA-15 Supported Pyrazolium Ionic Liquid Efficient Fixation Of Carbon Dioxide into Cyclic Carbonate Under Mild Conditions: The Synergistic Contribution of SBA-15 and Pyrazolium Ionic Liquid

An ionic liquid 1-butyl-3-methylimidazolium hydroxide ([Bmim]OH) was grafted on silica gel by post-grafting method. Such grafted ionic liquids (GILs) which were verified by means of FTIR, element analysis N2adsorption-desorption and TG could be used as highly effective heterogeneous catalysts toward propylene carbonate synthesis through cycloaddition of carbon dioxide with propylene oxide under solventless and mild conditions.

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Preparation and Activity of Ionic Liquid Catalysts Grafted on Hydrophobic Silica Gel

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.476-478.2621 ◽

2012 ◽

Vol 476-478 ◽

pp. 2621-2624

Author(s):

Xue Lan Zhang ◽

Deng Feng Wang

Keyword(s):

Carbon Dioxide ◽

Ionic Liquid ◽

Ionic Liquids ◽

Silica Gel ◽

Propylene Oxide ◽

Heterogeneous Catalysts ◽

N2 Adsorption ◽

Mild Conditions ◽

Hydrophobic Silica ◽

Adsorption Desorption

An ionic liquid 1- (triethoxysilyl) propyl-3-methylimidazolium hydroxide ([Smim]OH) was grafted on three kinds of mesoporous hydrophobic silica gel by means of post-grafting under mild conditions. The catalysts were [Smim]OH/SiO2-MTES (methyltriethoxysilane), [Smim]OH/SiO2-TMCS (trimethylchlorosilane), [Smim]OH/SiO2-CPTEO (triethoxysilyl propyl chloride). Such grafted ionic liquids (GILs), which were characterized by means of FTIR and N2 adsorption-desorption could be used as effective heterogeneous catalysts toward propylene carbonate synthesis through cycloaddition of carbon dioxide with propylene oxide under solventless and mild conditions.

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A heteropolyacid-based ionic liquid immobilized onto fibrous nano-silica as an efficient catalyst for the synthesis of cyclic carbonate from carbon dioxide and epoxides

Green Chemistry ◽

10.1039/c5gc00377f ◽

2015 ◽

Vol 17 (5) ◽

pp. 3059-3066 ◽

Cited By ~ 72

Author(s):

Seyed Mohsen Sadeghzadeh

Keyword(s):

Carbon Dioxide ◽

Ionic Liquid ◽

Cyclic Carbonate ◽

Nano Silica ◽

Efficient Catalyst

A heteropolyacid-based ionic liquid immobilized onto fibrous nano-silica as an efficient catalyst for the synthesis of cyclic carbonate from carbon dioxide and epoxides.

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Ionic liquid as a catalyst for utilization of carbon dioxide to production of linear and cyclic carbonate

Fuel ◽

10.1016/j.fuel.2017.03.077 ◽

2017 ◽

Vol 200 ◽

pp. 316-332 ◽

Cited By ~ 59

Author(s):

Avinash A. Chaugule ◽

Ashif H. Tamboli ◽

Hern Kim

Keyword(s):

Carbon Dioxide ◽

Ionic Liquid ◽

Cyclic Carbonate

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Efficient and Reusable Iron Catalyst to Convert CO2 into Valuable Cyclic Carbonates

Molecules ◽

10.3390/molecules26041089 ◽

2021 ◽

Vol 26 (4) ◽

pp. 1089

Author(s):

Ana P. C. Ribeiro ◽

Peter Goodrich ◽

Luísa M. D. R. S. Martins

Keyword(s):

Ionic Liquid ◽

Ionic Liquids ◽

Catalytic Effect ◽

Iron Catalyst ◽

Cyclic Carbonate ◽

Cyclic Carbonates ◽

Mild Conditions ◽

First Time

The production of cyclic carbonates from CO2 cycloaddition to epoxides, using the C-scorpionate iron(II) complex [FeCl2{κ3-HC(pz)3}] (pz = 1H-pyrazol-1-yl) as a catalyst, is achieved in excellent yields (up to 98%) in a tailor-made ionic liquid (IL) medium under mild conditions (80 °C; 1–8 bar). A favorable synergistic catalytic effect was found in the [FeCl2{κ3-HC(pz)3}]/IL system. Notably, in addition to exhibiting remarkable activity, the catalyst is stable during ten consecutive cycles, the first decrease (11%) on the cyclic carbonate yield being observed during the 11th cycle. The use of C-scorpionate complexes in ionic liquids to afford cyclic carbonates is presented herein for the first time.

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