SBA-15 supported triazolium-based ionic liquids as highly efficient and recyclable catalysts for fixation of CO2 with epoxides
SBA-15 supported triazolium-based ionic liquids as highly efficient and recyclable catalysts for fixation of CO2 with epoxides
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DOI：
10.1016/j.cattod.2012.10.001
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发表时间：
2013-02-01
期刊：
影响因子：
5.3
通讯作者：
Zhang, Suojiang
中科院分区：
文献类型：
--
作者：
Cheng, Weiguo;Chen, Xi;Zhang, Suojiang
合成了一系列SBA-15分子筛负载的1，2，4-三氮唑基离子液体（TRIL），并将其用于CO2与环氧化合物合成环状碳酸酯的反应。考察了催化剂的官能团、阴离子、反应温度、压力、反应时间、催化剂用量等因素对反应的影响。此外，催化剂可以通过过滤容易地回收，并且重复使用六次以上而不损失催化活性。结果表明，在温和的反应条件（2.0MPa，110 ℃，2 h）下，不需要添加有机溶剂或助催化剂，环状碳酸酯的收率（80-99%）和选择性（97-99%）都很高。(C)2012爱思唯尔有限公司版权所有。
A series of molecular sieve SBA-15 supported 1,2,4-triazolium-based ionic liquids (TRILs) were synthesized and employed as efficient catalysts for the synthesis of cyclic carbonates from CO2 and epoxides. The effects of various parameters, such as functional groups, anions of the catalysts, reaction temperature, pressure, reaction time, and the amount of catalyst used, on the reaction were investigated systematically. In addition, the catalyst can be easily recovered by filtration and reused over six times without loss of catalytic activity. It was found that high yield (80-99%) and excellent selectivity (97-99%) of cyclic carbonates could be achieved at mild conditions (2.0 MPa, 110 degrees C and 2 h) without additional organic solvents or co-catalysts. (C) 2012 Elsevier B.V. All rights reserved.