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

• 作者: Bo-Yun Liu Min-Jie Chen Liang Yang Bo Zhao Tao Xia Gang-Gang Chang
• 来源期刊: 中国化学工程学报（英文版）
• 年，卷（期）: 2021,（12）
• 所属期刊栏目: Catalysis, Kinetics and Reaction Engineering
• 页码范围: 124-130
• 页数: 7页
• 语种: 英文

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 sol-vent and co-catalyst free conditions.