| 基于TiO2的绿色多相催化剂催化CO2与环氧化合物偶联反应 |
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| 引用本文： | 刘靖,王安琪,景欢旺.基于TiO2的绿色多相催化剂催化CO2与环氧化合物偶联反应[J].催化学报,2014,35(10):1669-1675. |
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| 作者姓名： | 刘靖 王安琪 景欢旺 |
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| 作者单位： | 兰州大学化学化工学院, 功能有机分子化学国家重点实验室, 甘肃 兰州 730000 |
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| 基金项目： | 国家自然科学基金(21173106 |
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| 摘 要： | 金属离子掺杂纳米TiO2(M-TiO2,M=Zn2+,Cu2+,Co2+,Mn2+,Ni2+)在CO2与环氧化合物的偶联反应中表现出较高的催化活性.反应以四正丁基碘化铵(TBAI)为共催化剂,在无溶剂条件下进行.考察了反应温度、反应时间和CO2压力在Zn-TiO2/TBAI体系中对反应性能的影响.作为无毒的多相催化剂,Zn-TiO2可循环使用5次,其催化活性没有明显降低.
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| 关 键 词： | 二氧化碳 环氧化合物 环碳酸酯 多相催化剂 掺杂纳米二氧化钛 |
| 收稿时间： | 2014-03-14 |
TiO2-based green heterogeneous catalysts for the cycloaddition of CO2 to epoxides |
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| Jing Liu,Anqi Wang,Huanwang Jing.TiO2-based green heterogeneous catalysts for the cycloaddition of CO2 to epoxides[J].Chinese Journal of Catalysis,2014,35(10):1669-1675. |
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| Authors: | Jing Liu Anqi Wang Huanwang Jing |
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| Institution: | State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 73000, Gansu, China |
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| Abstract: | TiO2 doped with metal ions (M-TiO2, M = Zn2+, Cu2+, CO2+, Mn2+, or Ni2+) was investigated as a heterogeneous catalyst for the coupling reaction of CO2 and epoxides, using tetrabutylammonium iodide (TBAI) as a co-catalyst under solvent-free conditions. These compounds were found to exhibit high catalytic activities. The effects of reaction temperature, reaction time, and CO2 pressure on the effectiveness of a Zn-TiO2/TBAI catalyst system were also examined. Zn-TiO2 represents a nontoxic, heterogeneous catalyst that can be reutilized up to five times without a significant loss of catalytic activity. |
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| Keywords: | Carbon dioxide Epoxide Cyclic carbonate Heterogeneous catalyst Doped titanium dioxide |
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