Abstract: The FMOFs-[HeMIM]Cl/(ZnBr2)2, FMOFs-[CeMIM]Cl/(ZnBr2)2, and FMOFs-[AeMIM]Cl/(ZnBr2)2 were, respectively, immobilized in functional metal -organic framework materials (FMOFs). They were used to catalyze the cycloaddition reaction of carbon dioxide (CO2) and epoxides. The results from the investigation showed that the three metal-based ionic liquid catalysts were the target products. Under the conditions of reaction temperature 110 oC, reaction pressure 2.0 MPa, and catalyst dosage accounting for 2.0% of the mass of epoxide, the conversion of epoxide was 96.63% and the selectivity of propylene carbonate was 98.64%, thus forming the optimal catalyst FMOFs-[CeMIM]Cl/(ZnBr2)2. Moreover, the catalyst has no obvious change in catalytic performance after being recycled four times.

Key words: functional metal-organic framework materials (FMOFs), compound ionic liquid, Immobilization, catalyze, CO2, cyclic carbonate