Lewis Acid‐Base Bifunctional Ionic Covalent Organic Frameworks for CO2 Chemical Fixation DOI
Ping Liu, Tiantong Zhao,

Zhao Fang-fang

et al.

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: May 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.

Language: Английский

Multivariate optimization of CO2 conversion on Ce/Tb oxides by chemical looping DOI
Federico J. Pomiro, Georgina De Micco,

Agustín E. Tamietti

et al.

Process Safety and Environmental Protection, Journal Year: 2025, Volume and Issue: unknown

Published: May 1, 2025

Language: Английский

Citations

0
Lewis Acid‐Base Bifunctional Ionic Covalent Organic Frameworks for CO2 Chemical Fixation DOI
Ping Liu, Tiantong Zhao,

Zhao Fang-fang

et al.

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: May 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.

Language: Английский

Citations

0