Advanced Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Май 23, 2025

Abstract Ionic covalent organic frameworks (iCOFs) exhibit unique advantages as heterogeneous catalysts due to their permanent porosity, programmable charge transport, and tunable host‐guest interactions. Here, the fabrication of cationic iCOFs via direct solvothermal assembly integrate zinc ions (Zn(II))‐imine centers are reported construct bifunctional catalysts. The resultant catalyst, Zn@PD‐iCOF, achieves remarkable yields (up 99%) cyclic carbonates in carbon dioxide (CO 2 )‐epoxides cycloaddition reactions under mild conditions (at 80 °C, 0.1 MPa CO ) without need for co‐catalysts solvents, superior most previously ionic This exceptional performance stems from hierarchically ordered pores structure, fully exposed dual active sites (ion pair Lewis acid site), synergistic electronic coupling. Moreover, catalyst retains >90% activity over twelve consecutive cycles, demonstrating stability. study establishes a blueprint designing task‐specific COFs efficient chemical fixation.

Язык: Английский