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Issue 32, 2015
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Two stable 3D porous metal–organic frameworks with high performance for gas adsorption and separation

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Abstract

Two porous MOFs, [NO3][In3OL3]·4DMF·3H2O (JLU-Liu18) and [CdL]·0.5DMF (JLU-Liu19), H2L = pyridine-3,5-bis(phenyl-4-carboxylic acid), have been solvothermally synthesized and structurally characterized. Both of the two compounds possess a saturated coordination metal centre without open metal sites (OMSs) leading to remarkable thermal and water vapour stability. JLU-Liu18 displays a rare occurrence of 9-connected, trinuclear [In3O(CO2)6N3] secondary building units (SBUs) in a porous crystal, with high adsorption for small gases, especially CO2 (129 and 400 cm3 g−1 at 273 and 195 K, respectively, under 1 bar). It also performs with commendable selectivity for O2 over N2, and CO2, C2H6, C3H8 over CH4. JLU-Liu19 possesses outstanding performance for sieving small gases owing to its ultramicropores of 3.5 Å. Both of the two MOFs are promising materials for gas adsorption and purification.

Graphical abstract: Two stable 3D porous metal–organic frameworks with high performance for gas adsorption and separation

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Supplementary files

Article information


Submitted
29 May 2015
Accepted
03 Jul 2015
First published
03 Jul 2015

J. Mater. Chem. A, 2015,3, 16627-16632
Article type
Paper
Author version available

Two stable 3D porous metal–organic frameworks with high performance for gas adsorption and separation

S. Yao, D. Wang, Y. Cao, G. Li, Q. Huo and Y. Liu, J. Mater. Chem. A, 2015, 3, 16627
DOI: 10.1039/C5TA03886C

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