SCI和EI收录∣中国化工学会会刊

中国化学工程学报 ›› 2021, Vol. 40 ›› Issue (12): 124-130.DOI: 10.1016/j.cjche.2020.12.019

• Catalysis, Kinetics and Reaction Engineering • 上一篇    下一篇

Hollow MOF capsule encapsulated amino-functionalized ionic liquid for excellent CO2 catalytic conversion

Bo-Yun Liu1, Min-Jie Chen2, Liang Yang1,2, Bo Zhao1,2, Tao Xia2, Gang-Gang Chang2   

  1. 1. School of Power Engineering, Naval University of Engineering, Wuhan 430033, China;
    2. School of Chemistry, Chemical Engineering and Life Science, Wuhan University of Technology, Wuhan 430070, China
  • 收稿日期:2020-07-14 修回日期:2020-11-22 出版日期:2021-12-28 发布日期:2022-01-14
  • 通讯作者: Bo Zhao,E-mail:1031162667@qq.com;Gang-Gang Chang,E-mail:changgang2016@whut.edu.cn
  • 基金资助:
    This work was supported by National Natural Science Foundation of China (21706199, U1662134, 5181101338). This study was also supported by National Key Research and Development Program of China (2017YFC1103800).

Hollow MOF capsule encapsulated amino-functionalized ionic liquid for excellent CO2 catalytic conversion

Bo-Yun Liu1, Min-Jie Chen2, Liang Yang1,2, Bo Zhao1,2, Tao Xia2, Gang-Gang Chang2   

  1. 1. School of Power Engineering, Naval University of Engineering, Wuhan 430033, China;
    2. School of Chemistry, Chemical Engineering and Life Science, Wuhan University of Technology, Wuhan 430070, China
  • Received:2020-07-14 Revised:2020-11-22 Online:2021-12-28 Published:2022-01-14
  • Contact: Bo Zhao,E-mail:1031162667@qq.com;Gang-Gang Chang,E-mail:changgang2016@whut.edu.cn
  • Supported by:
    This work was supported by National Natural Science Foundation of China (21706199, U1662134, 5181101338). This study was also supported by National Key Research and Development Program of China (2017YFC1103800).

摘要: The engineering of highly efficient and stable heterogeneous catalysts for catalytic conversion of CO2 to high value-added products is highly desirable but presents a great challenge. Herein, we reported the synthesis of a series of multifunctional IL@H-Zn/Co-ZIF composite catalysts with a unique porous hollow capsule structure and encapsulated amino-functionalized ionic liquids (ILs). The unique hollow capsule structure of IL@H-Zn/Co-ZIF provides sufficient space for loading active ILs ([C2NH2Mim+][Br-]) and fast mass transfer of substrate molecules during catalysis. Furthermore, the microporous Zn-ZIF shell can effectively avoid the leaching of active ILs. Benefiting from the unique hollow structure, the resultant IL@H-Zn/Co-ZIF demonstrated excellent catalytic performance (>95% yield), and good recyclability (still remained about 90% activities after 5 cycles) when applied in the CO2 cycloaddition reaction under solvent and co-catalyst free conditions.

关键词: MOFs, Catalyst, Hollow capsule, CO2 capture, Ionic liquids

Abstract: The engineering of highly efficient and stable heterogeneous catalysts for catalytic conversion of CO2 to high value-added products is highly desirable but presents a great challenge. Herein, we reported the synthesis of a series of multifunctional IL@H-Zn/Co-ZIF composite catalysts with a unique porous hollow capsule structure and encapsulated amino-functionalized ionic liquids (ILs). The unique hollow capsule structure of IL@H-Zn/Co-ZIF provides sufficient space for loading active ILs ([C2NH2Mim+][Br-]) and fast mass transfer of substrate molecules during catalysis. Furthermore, the microporous Zn-ZIF shell can effectively avoid the leaching of active ILs. Benefiting from the unique hollow structure, the resultant IL@H-Zn/Co-ZIF demonstrated excellent catalytic performance (>95% yield), and good recyclability (still remained about 90% activities after 5 cycles) when applied in the CO2 cycloaddition reaction under solvent and co-catalyst free conditions.

Key words: MOFs, Catalyst, Hollow capsule, CO2 capture, Ionic liquids