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Issue 12, 2016
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A new Co(II) metal–organic framework with enhanced CO2 adsorption and separation performance

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Abstract

The new functional ligand 5-(1H-pyrazole-4-carboxamido)isophthalic acid (H3L) reacts with CoSO4·7H2O to form a new three-dimensional metal–organic framework, [Co4(HL2−)4(DMF)2(H2O)2]n·solvent (1) with a new (3,6)-connected topology. 1 exhibits one-dimensional polar channels with approximate dimensions of 6.0 × 8.0 Å2 decorated with accessible functional sites. These sites contribute to enhanced CO2 uptake (103.2 cm3 g−1 at 273 K and 1 bar) and CO2/CH4 selectivity (7.25 for CO2/CH4 = 50 : 50; 8.59 for CO2/CH4 = 5 : 95) at 298 K and 1 bar. DFT calculations were also performed to elucidate the binding sites. These results suggest that complex 1 is an attractive candidate for CO2 adsorption and separation.

Graphical abstract: A new Co(ii) metal–organic framework with enhanced CO2 adsorption and separation performance

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Publication details

The article was received on 18 Jul 2016, accepted on 20 Sep 2016 and first published on 20 Sep 2016


Article type: Research Article
DOI: 10.1039/C6QI00191B
Citation: Inorg. Chem. Front., 2016,3, 1510-1515
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    A new Co(II) metal–organic framework with enhanced CO2 adsorption and separation performance

    X. Liu, Y. Jia, Y. Zhang, G. Ren, R. Feng, S. Zhang, M. J. Zaworotko and X. Bu, Inorg. Chem. Front., 2016, 3, 1510
    DOI: 10.1039/C6QI00191B

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