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A ligand conformation preorganization approach to construct a copper-hexacarboxylate framework with a novel topology for selective gas adsorption

Abstract

The development of porous MOFs with novel structures and functional properties is in the center of the MOF chemistry and materials field. In this contribution, by employing ligand conformation preorganization strategy, we designed a nonplanar methyl-substituted triisophthalate ligand, which was used to successfully construct a copper-hexacarboxylate framework with a novel topological structure. More importantly, the obtained MOF not only exhibits good hydrolytic stability but also displays the utility as an adsorbent for efficient separation and purification of C2H2 and natural gas at ambient conditions. At ambient temperature and atmospheric pressure, the C2H2 and CO2 uptake capacities reach up to 149.1 and 83.1 cm3 (STP) g-1, while the IAST-predicted C2H2/CH4 (50/50, v/v), C2H2/CO2 (50/50, v/v), and CO2/CH4 (50/50, v/v) adsorption selectivities are as high as 22.2, 3.81, and 5.13.

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Publication details

The article was received on 13 Nov 2018, accepted on 27 Nov 2018 and first published on 27 Nov 2018


Article type: Research Article
DOI: 10.1039/C8QI01225C
Citation: Inorg. Chem. Front., 2018, Accepted Manuscript
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    A ligand conformation preorganization approach to construct a copper-hexacarboxylate framework with a novel topology for selective gas adsorption

    Y. Wang, M. He, X. Gao, X. Wang, G. Xu, Z. Zhang and Y. He, Inorg. Chem. Front., 2018, Accepted Manuscript , DOI: 10.1039/C8QI01225C

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