Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/22638
Title: A green catalysis of CO2 fixation to aliphatic cyclic carbonates by a new ionic liquid system
Authors: Wong, WL
Lee, LYS 
Ho, KP
Zhou, ZY
Fan, T
Lin, Z
Wong, KY 
Keywords: CO2 fixation
Cyclic carbonate
Green chemistry
Ionic liquid
Organocatalysis
Issue Date: 2014
Source: Applied catalysis A : General, 2014, v. 472, p. 160-166 How to cite?
Journal: Applied Catalysis A: General 
Abstract: A mixed ionic liquid system has been developed for the efficient catalysis of CO2 addition to aliphatic epoxides without involving any transition metal catalysts or other additives. The ionic liquid integrated with pyridinium and pyrrolidinium groups (1·(Br)3) together with a non-polar ionic liquid (3·(Ntf)2) effectively transformed non-polar aliphatic epoxides to cyclic carbonates by the reaction with CO 2 under mild CO2 pressure (3.0 MPa) and reaction temperature (80 C). The presence of 3·(Ntf)2 remarkably improved the catalytic activity of 1·(Br)3 towards non-polar epoxides by increasing the miscibility of catalyst with the substrates. The mixed ionic liquid system is robust enough to be recycled without any significant loss of catalytic activity. GC-MS studies were performed to reveal the reaction pathways to the cyclic carbonates and a feasible model accounting for the effective CO2 activation in the ionic liquid system was proposed using density functional theory (DFT) calculations.
URI: http://hdl.handle.net/10397/22638
ISSN: 0926-860X
DOI: 10.1016/j.apcata.2013.12.027
Appears in Collections:Journal/Magazine Article

Access
View full-text via PolyU eLinks SFX Query
Show full item record

SCOPUSTM   
Citations

18
Last Week
0
Last month
0
Citations as of Aug 11, 2017

WEB OF SCIENCETM
Citations

17
Last Week
0
Last month
0
Citations as of Aug 9, 2017

Page view(s)

41
Last Week
1
Last month
Checked on Aug 14, 2017

Google ScholarTM

Check

Altmetric



Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.