4.7 Article

A Zn-Based Coordination Polymer with Homogeneous Catalyst Properties for Efficient CO2 Fixation

期刊

ACS APPLIED POLYMER MATERIALS
卷 5, 期 9, 页码 6753-6760

出版社

AMER CHEMICAL SOC
DOI: 10.1021/acsapm.3c01111

关键词

CO2; cyclic carbonate; coordinationpolymer; epoxide; synergistic catalyst

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In this study, an efficient catalyst for CO2 conversion was developed, which was a Zn-based coordination polymer (ZnBr2-CP) synthesized from a tridentate pyridine ligand. The catalyst exhibited both high activity of homogeneous catalysts and recoverable features of heterogeneous catalysts. It achieved excellent activity in the cycloaddition of CO2 with epoxides under solvent- and co-catalyst-free conditions, with yields as high as 99% for various cyclic carbonates at 80°C for 24 hours. This study provides insights for the design of efficient catalysts for CO2 conversion.
The development of efficient catalysts for the catalyticconversionof CO2 is extremely important in the process of CO2 chemistry. In this work, a Zn-based coordination polymer(ZnBr2-CP) was synthesized from a tridentate pyridine ligandbearing an imidazolium salt ligated with ZnBr2. It possessesnot only the high activity of homogeneous catalysts but also the recoverablefeatures of heterogeneous catalysts. More importantly, configureddouble active sites allow the catalyst ZnBr2-CP to exhibitexcellent activity in the cycloaddition of CO2 with epoxidesunder solvent- and co-catalyst-free conditions, achieving yields ashigh as 99% for a variety of cyclic carbonates at 80 & DEG;C for 24h. This study provides insight into the design of efficient catalystsfor conversion of CO2.

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