催化学报 ›› 2014, Vol. 35 ›› Issue (10): 1669-1675.DOI: 10.1016/S1872-2067(14)60110-8

• 论文 • 上一篇    下一篇

基于TiO2的绿色多相催化剂催化CO2与环氧化合物偶联反应

刘靖, 王安琪, 景欢旺   

  1. 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
  • 收稿日期:2014-03-14 修回日期:2014-04-09 出版日期:2014-09-28 发布日期:2014-09-30
  • 通讯作者: 景欢旺
  • 基金资助:

    国家自然科学基金(21173106,20973086).

TiO2-based green heterogeneous catalysts for the cycloaddition of CO2 to epoxides

Jing Liu, anqi Wang, Huanwang Jing   

  1. State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 73000, Gansu, China
  • Received:2014-03-14 Revised:2014-04-09 Online:2014-09-28 Published:2014-09-30
  • Supported by:

    This work was financially supported by the National Natural Science Foundation of China (21173106, 20973086).

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.

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

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.

Key words: Carbon dioxide, Epoxide, Cyclic carbonate, Heterogeneous catalyst, Doped titanium dioxide