Document Type

Journal Article

Department/Unit

Department of Chemistry

Title

3-(2-Hydroxyl-Ethyl)-1-propylimidazolium bromide immobilized on SBA-15 as efficient catalyst for the synthesis of cyclic carbonates via the coupling of carbon dioxide with epoxides

Language

English

Abstract

3-(2-hydroxyl-ethyl)-1-propylimidazolium bromide (HEPIMBr) was immobilized onto SBA-15, Al-SBA-15 mesoporous molecular sieves and SiO2 by chemical grafting method. The materials were characterized and used as catalysts for solvent-free synthesis of cyclic carbonates from CO2 and epoxides under relatively mild conditions. Among them, the HEPIMBr immobilized on SBA-15 performs the best, showing carbonate selectivity and yield of ca. 100% (120 °C, 2.0 MPa, 2 h). The catalyst is thermally stable and shows good reusability. Based on the experimental results, a plausible reaction mechanism has been proposed for the catalytic reaction. © 2010 Springer Science+Business Media, LLC.

Keywords

Carbon dioxide, Cyclic carbonate, Epoxide, Hydroxyl ionic liquids, SBA-15

Publication Date

2010

Source Publication Title

Catalysis Letters

Volume

135

Issue

4-3

Start Page

295

End Page

304

Publisher

Springer Verlag

DOI

10.1007/s10562-010-0285-4

Link to Publisher's Edition

http://dx.doi.org/10.1007/s10562-010-0285-4

ISSN (print)

1011372X

ISSN (electronic)

1572879X

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