Shell engineering on mesoporous metal organic frameworks:beyond microporous restriction in core-shell architectureOA
Core-shell metal organic frameworks(MOFs)have emerged as a promising platform for efficient separation and sensing,benefiting from the sieving effect of the shell and the large storage capacity of the core.However,conventional core-shell MOFs often encounter challenges with compromised pore integrity,which predominantly restricts their design to microporous cores.In this study,a straightforward strategy to construct functional shells on mesoporous MOFs is proposed.By leveraging dynamic imine chemistry,small-molecule amines are assembled into supramolecular polymers and anchored onto the surface of mesoporous MOFs through metal coordination.This approach preserves the mesoporous structure of the core while introducing hydrogen-bonding channels in the shell,facilitating the selective capture and storage of polar gases.The resulting core-shell MOF demonstrates exceptional CO_(2)/N_(2) selectivity of up to 10,943 and a high CO_(2) adsorption capacity,enabling the direct production of high-purity CO_(2)(99.7 vol.%)from humid flue gas in a single breakthrough experiment.Furthermore,this strategy exhibits excellent stability and versatility across various mesoporous MOFs,underscoring its potential for practical industrial gas separation applications.
Lijuan Shi;Deyun Sun;Hongxue Xu;Zunaira Maqsood;Shangqing Chen;Qun Yi
Key Laboratory of Green Chemical Engineering Process of Ministry of Education,Hubei Key Lab of Novel Reactor&Green Chemical Technology,School of Chemical Engineering and Pharmacy,Wuhan Institute of Technology,Wuhan,430205,ChinaKey Laboratory of Green Chemical Engineering Process of Ministry of Education,Hubei Key Lab of Novel Reactor&Green Chemical Technology,School of Chemical Engineering and Pharmacy,Wuhan Institute of Technology,Wuhan,430205,ChinaKey Laboratory of Green Chemical Engineering Process of Ministry of Education,Hubei Key Lab of Novel Reactor&Green Chemical Technology,School of Chemical Engineering and Pharmacy,Wuhan Institute of Technology,Wuhan,430205,ChinaKey Laboratory of Green Chemical Engineering Process of Ministry of Education,Hubei Key Lab of Novel Reactor&Green Chemical Technology,School of Chemical Engineering and Pharmacy,Wuhan Institute of Technology,Wuhan,430205,ChinaKey Laboratory of Green Chemical Engineering Process of Ministry of Education,Hubei Key Lab of Novel Reactor&Green Chemical Technology,School of Chemical Engineering and Pharmacy,Wuhan Institute of Technology,Wuhan,430205,ChinaKey Laboratory of Green Chemical Engineering Process of Ministry of Education,Hubei Key Lab of Novel Reactor&Green Chemical Technology,School of Chemical Engineering and Pharmacy,Wuhan Institute of Technology,Wuhan,430205,China
化学化工
Core-shellMesoporous MOFsSupramolecular assemblyFlue gas separation
《Green Chemical Engineering》 2026 (3)
P.327-335,9
financially supported by the National Natural Science Foundation of China(22272125,22478309)Shanxi-Zheda Institute of Advanced Materials and Chemical Engineering(2022SX-TD015)the Key Research and Development Project of Hainan Province(ZDYF2024GXJS005)Exploration Program(Morning Light Program)of Wuhan Natural Science Foundation(2024040801020325)the Open Project of Key Laboratory of Green Chemical Engineering Process of Ministry of Education(GCX2023003,GCX2023004)。
评论