CeO2-ZrO2 Solid Solution Catalyzed and Moderate Acidic–Basic Sites Dominated Cycloaddition of CO2 with Epoxides: Halogen-Free Synthesis of Cyclic Carbonates

For the production of cyclic carbonates from cycloaddition CO2 with epoxides, halogen pollution and product purity are two most common problems due to usage homogeneous halogen-containing catalysts such as ammonium salt alkali metal halide. Hence, development a novel, halogen-free efficient catalyst for synthesis high-purity is significant. Here, series acid–base bifunctional Ce1-xZrxO2 nanorods were successfully prepared. The could catalyze epoxides efficiently without any addition. Especially Ce0.7Zr0.3O2 catalyst, conversion 96% 100% 1,2-butylene carbonate selectivity was achieved. excellent catalytic performance attributed formation CeO2-ZrO2 solid solution, which contributes abundant moderate acidic–basic active sites on surface. It synergistic effect that dominates will supply important references oxide epoxides.