Abstract：Using polyvinylpyrrolidone (PVP) and ammonium fluoride (NH4F) as structure directing agents, the precursor of the MOF-74/ZIF composite catalyst was synthesized by one-step self-assembly method. Subsequently, thermal treatment was conducted under a nitrogen atmosphere to prepare a carbon and nitrogen-supported Cu-Cu2O catalyst, named Cu-Cu2O/MFZ-CN. Cu-Cu2O/MFZ-CN was applied on the addition reaction of CO2 with epoxies. In the cycloaddition reaction of CO2 with styrene oxide, the Cu-Cu2O/MFZ-CN catalyst demonstrated outstanding catalytic activity, with a styrene oxide conversion rate as high as 70.1% and a selectivity for styrene carbonate reaching 99.0%. During the thermal decomposition of the catalyst, the generated metallic Cu, Cu2O, and MgF2 became important active components and supports. Among them, Cu2O exhibits a certain Lewis acidity which can effectively activate epoxides and carbon dioxide, thereby facilitating the reaction. Overall, the successful synthesis of the Cu-Cu2O/MFZ-CN catalyst and its excellent catalytic performance provide new insights and potential applications for future developments in the field of CO2 conversion.
LI Weizuo,YAN Shuo,HE Guangyu et al. Highly Efficient MOF-74/ZIF Derived Catalysts for CO2 Cycloaddition Reaction[J]. Chemical Reaction Engineering and Technology, 2025, 41(1): 246-252.
