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Issue 43, 2017
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Metal–organic frameworks grown on a porous planar template with an exceptionally high surface area: promising nanofiller platforms for CO2 separation

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Abstract

Porous nanosheets made of effectively aligned zeolitic imidazolate framework-8 (ZIF-8), dubbed ZPGO, with an exceptionally high surface area (2170 m2 g−1) were demonstrated. This composite was prepared by growing ZIF-8s on highly porous graphene oxide (PGO) and the mixed matrix membrane with such a nanofiller showed drastically improved size-selective CO2 transport even at very low filler concentration (0.02 wt%) especially under mixed gas conditions where both selectivity (CO2/N2 ∼57) and CO2 permeability (∼163 barrer) were significantly enhanced. In addition to this, ZPGO effectively suppressed CO2-plasticization, which indicates great potential in real operations. This new concept of nanofillers is expected to maximize the filler effect in other fields benefitting from a high surface area as well.

Graphical abstract: Metal–organic frameworks grown on a porous planar template with an exceptionally high surface area: promising nanofiller platforms for CO2 separation

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Publication details

The article was received on 12 Jul 2017, accepted on 02 Oct 2017 and first published on 07 Oct 2017


Article type: Communication
DOI: 10.1039/C7TA06049A
Citation: J. Mater. Chem. A, 2017,5, 22500-22505
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    Metal–organic frameworks grown on a porous planar template with an exceptionally high surface area: promising nanofiller platforms for CO2 separation

    H. Lee, S. C. Park, J. S. Roh, G. H. Moon, J. E. Shin, Y. S. Kang and H. B. Park, J. Mater. Chem. A, 2017, 5, 22500
    DOI: 10.1039/C7TA06049A

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