Chemistry

A cage-on-MOF strategy to coordinatively functionalize mesoporous MOFs for manipulating selectivity in adsorption and catalysis

Y. Liang, X. Yang, et al.

Discover an innovative 'Cage-on-MOF' strategy that redefines selectivity in metal-organic frameworks for adsorption and catalysis. This groundbreaking research, conducted by Yu Liang, Xiaoxin Yang, Xiaoyu Wang, Zong-Jie Guan, Hang Xing, and Yu Fang, showcases how oppositely charged porous coordination cages can enhance performance without sacrificing porosity.

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Abstract

This paper introduces a "Cage-on-MOF" strategy to enhance the selectivity of metal-organic frameworks (MOFs) in adsorption and catalysis without compromising porosity. Two types of oppositely charged porous coordination cages (PCCs) with secondary binding groups were synthesized and coordinatively functionalized onto PCN-222 and MIL-101 MOFs. The PCCs act as modulators, tuning surface charge, stability, and adsorption behavior. MOF@PCC nanocomposites showed reversed product selectivity and excellent recyclability in condensation reactions. This strategy offers a new approach to functionalizing porous materials.

Publisher

Nature Communications

Published On

Aug 26, 2023

Authors

Yu Liang, Xiaoxin Yang, Xiaoyu Wang, Zong-Jie Guan, Hang Xing, Yu Fang

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