SCI和EI收录∣中国化工学会会刊

中国化学工程学报 ›› 2022, Vol. 50 ›› Issue (10): 283-291.DOI: 10.1016/j.cjche.2022.07.029

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

Hydrogenation of CO2 to formate catalyzed by SBA-15-supported cyclic (alkyl)(amino)carbene-iridium

Lei Zhou1, Lingling Peng2, Xingbang Hu2   

  1. 1 College of Chemistry and Chemical Engineering, Yangzhou Polytechnic Institute, Yangzhou 225127, China;
    2 School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
  • 收稿日期:2022-03-14 修回日期:2022-07-19 出版日期:2022-10-28 发布日期:2023-01-04
  • 通讯作者: Xingbang Hu,E-mail:huxb@nju.edu.cn
  • 基金资助:
    This work was supported by the National Natural Science Foundation of China (Nos. 22178159 and 21878141) and Key Research & Development Plan of Jiangsu Province (BE2019095).

Hydrogenation of CO2 to formate catalyzed by SBA-15-supported cyclic (alkyl)(amino)carbene-iridium

Lei Zhou1, Lingling Peng2, Xingbang Hu2   

  1. 1 College of Chemistry and Chemical Engineering, Yangzhou Polytechnic Institute, Yangzhou 225127, China;
    2 School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
  • Received:2022-03-14 Revised:2022-07-19 Online:2022-10-28 Published:2023-01-04
  • Contact: Xingbang Hu,E-mail:huxb@nju.edu.cn
  • Supported by:
    This work was supported by the National Natural Science Foundation of China (Nos. 22178159 and 21878141) and Key Research & Development Plan of Jiangsu Province (BE2019095).

摘要: Recently, cyclic (alkyl)(amino)carbenes (CAACs) have been widely used as ligands to enhance the catalytic reactivity of center metal, but the problem of recycling this expensive ligand remains to be solved. In this work, the heterogeneous SBA-15-CAAC-Ir catalyst was prepared by a covalent attachment method, and using SBA-15 as the carrier. It shows high reactivity for the hydrogenation of CO2 to formate. After immobilization, the ordered mesoporous structure and the overall rod-like morphology of the original SBA-15 have been preserved very well. Using SBA-15-CAAC-Ir as catalyst, up to 21050 TON can be obtained at 60 ℃. In addition, the catalyst can be separated easily by centrifugation, and the catalytic activity of SBA-15-CAAC-Ir can still remain very high after multiple cycles.

关键词: Cyclic (alkyl)(amino)carbenes, Carbon dioxide, Hydrogenation, SBA-15, Formate

Abstract: Recently, cyclic (alkyl)(amino)carbenes (CAACs) have been widely used as ligands to enhance the catalytic reactivity of center metal, but the problem of recycling this expensive ligand remains to be solved. In this work, the heterogeneous SBA-15-CAAC-Ir catalyst was prepared by a covalent attachment method, and using SBA-15 as the carrier. It shows high reactivity for the hydrogenation of CO2 to formate. After immobilization, the ordered mesoporous structure and the overall rod-like morphology of the original SBA-15 have been preserved very well. Using SBA-15-CAAC-Ir as catalyst, up to 21050 TON can be obtained at 60 ℃. In addition, the catalyst can be separated easily by centrifugation, and the catalytic activity of SBA-15-CAAC-Ir can still remain very high after multiple cycles.

Key words: Cyclic (alkyl)(amino)carbenes, Carbon dioxide, Hydrogenation, SBA-15, Formate