Journal
JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL
Volume 392, Issue -, Pages 278-283Publisher
ELSEVIER
DOI: 10.1016/j.molcata.2014.05.033
Keywords
Zeolitic imidazolate framework; Carbon dioxide fixation; Cyclic carbonate; Heterogeneous catalyst
Categories
Funding
- Natural Science Foundation of Guangdong Province [10251009001000003]
- Scientific Program of Guangdong Province [2012A030600006]
- Fund of Higher Education of Guangdong Province [cgzhzd1104]
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An efficient heterogeneous catalyst, namely, zeolitic imidazolate framework-68 (ZIF-68), was developed for the synthesis of cyclic carbonate from CO2 and styrene oxide in the absence of any solvents or co-catalysts under mild reaction conditions (120 degrees C and 1.00 MPa). The textural properties of the ZIF-68 catalyst were determined by the powder X-ray diffraction, N-2 adsorption-desorption and thermal analysis. The acid-base property of ZIF-68 catalyst was investigated by NH3 and CO2 temperature-programmed desorption methods. The results indicate that the yield of cyclic carbonate reached up to 93.3% after 12 h in the mild reaction conditions. Moreover, the ZIF-68 catalyst could be successfully reused for three times without any significant loss in catalytic activity. (C) 2014 Elsevier B.V. All rights reserved.
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