Hydrogenation of CO_(2) to formate catalyzed by SBA-15-supported cyclic(alkyl)(amino)carbene-iridium  

作　　者：Lei Zhou Lingling Peng Xingbang Hu 

机构地区：[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

出　　处：《Chinese Journal of Chemical Engineering》2022年第10期283-291,共9页中国化学工程学报（英文版）

基　　金：supported by the National Natural Science Foundation of China(Nos.22178159,21878141);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 CO_(2) 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 

分 类 号：X701[环境科学与工程—环境工程] TQ225.24[化学工程—有机化工] TQ426