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Covalent organic framework (COF) membranes with tunable ordered channels and free organic groups hold great promise in molecular separations owing to the synergy of physical and chemical microenvironments. Herein, we develop a defect engineering strategy to fabricate COF membranes for efficient CO2 separation. Abundant amino groups are in situ generated on the COF nanosheets arising from the missing‐linker...
Exploring new routes to lock the dynamic C=N bonds in imine‐linked covalent organic frameworks (COFs) is highly desired for enhancing their stability and functionality. Herein, a novel C=N bridge locking strategy via rhodium‐catalyzed [4+2] annulation is developed to construct nonsubstituted quinoline‐linked COFs (NQ‐COFs). The notable feature of this strategy includes high C=N conversion efficiency,...
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