A window-space-directed assembly strategy for the construction of supertetrahedron-based zeolitic mesoporous metal–organic frameworks with ultramicroporous apertures for selective gas adsorption

Lei Zhang; Fangfang Li; Jianjun You; Nengbin Hua; Qianting Wang; Junhui Si; Wenzhe Chen; Wenjing Wang; Xiaoyuan Wu; Wenbin Yang; Daqiang Yuan; Canzhong Lu; Yanrong Liu; Abdullah M. Al-Enizi; Ayman Nafady; Shengqian Ma

doi:10.1039/D0SC06841A

A window-space-directed assembly strategy for the construction of supertetrahedron-based zeolitic mesoporous metal–organic frameworks with ultramicroporous apertures for selective gas adsorption†

Lei Zhang,*^abcd Fangfang Li,^ad Jianjun You,^ad Nengbin Hua,^ad Qianting Wang,^ad Junhui Si,^ad Wenzhe Chen,^ad Wenjing Wang,

^b Xiaoyuan Wu,

^b Wenbin Yang,

^b Daqiang Yuan,

^b Canzhong Lu,

*^be Yanrong Liu,

^f Abdullah M. Al-Enizi,

^g Ayman Nafady^g and Shengqian Ma

*^c

Author affiliations

* Corresponding authors

^a College of Materials Science and Engineering, Fujian University of Technology, Fuzhou 350118, China
E-mail: leizhang@fjut.edu.cn

^b CAS Key Laboratory of Design and Assembly of Functional Nanostructures, Fujian Provincial Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China
E-mail: czlu@fjirsm.ac.cn

^c Department of Chemistry, University of North Texas, Denton 76201, USA
E-mail: Shengqian.Ma@unt.edu

^d Collaborative Innovation Center for Intelligent and Green Mold and Die of Fujian Province, Fuzhou 350118, China

^e Xiamen Institute of Rare Earth Materials, Chinese Academy of Sciences, Xiamen 361021, China

^f Energy Engineering, Division of Energy Science, Luleå University of Technology, Luleå 97187, Sweden

^g Department of Chemistry, College of Science, King Saud University, Riyadh 11451, Saudi Arabia

Abstract

Despite their scarcity due to synthetic challenges, supertetrahedron-based metal–organic frameworks (MOFs) possess intriguing architectures, diverse functionalities, and superb properties that make them in-demand materials. Employing a new window-space-directed assembly strategy, a family of mesoporous zeolitic MOFs have been constructed herein from corner-shared supertetrahedra based on homometallic or heterometallic trimers [M₃(OH/O)(COO)₆] (M₃ = Co₃, Ni₃ or Co₂Ti). These MOFs consisted of close-packed truncated octahedral cages possessing a sodalite topology and large β-cavity mesoporous cages (∼22 Å diameter) connected by ultramicroporous apertures (∼5.6 Å diameter). Notably, the supertetrahedron-based sodalite topology MOF combined with the Co₂Ti trimer exhibited high thermal and chemical stability as well as the ability to efficiently separate acetylene (C₂H₂) from carbon dioxide (CO₂).

Chemical Science

A window-space-directed assembly strategy for the construction of supertetrahedron-based zeolitic mesoporous metal–organic frameworks with ultramicroporous apertures for selective gas adsorption†

Abstract

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A window-space-directed assembly strategy for the construction of supertetrahedron-based zeolitic mesoporous metal–organic frameworks with ultramicroporous apertures for selective gas adsorption

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