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  • Facile synthesis of a continuous thin Cu(bipy)2(SiF6) membrane with selectivity towards hydrogen

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    Author(s)
    Fan, S
    Sun, F
    Xie, J
    Guo, J
    Zhang, L
    Wang, C
    Pan, Q
    Zhu, G
    Griffith University Author(s)
    Zhu, Guangshan
    Year published
    2013
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    Abstract
    Cu(bipy)2(SiF6) is a highly porous metal-organic framework (MOF) and represents a prototypal "pillared sheet" platform o?ering opportunities to control the pore sizes. Its structural features, low cost and facile synthesis make it a great candidate to fabricate membranes for gas separation. The key to obtaining thin, continuous Cu(bipy)2(SiF6) membranes is to control the Cu(bipy)2(SiF6) crystal growth and enhance the binding between membrane and substrate. Here we explored a new route by direct synthesis and successfully obtained a continuous thin Cu(bipy)2(SiF6) membrane on a macroporous glass-frit ...
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    Cu(bipy)2(SiF6) is a highly porous metal-organic framework (MOF) and represents a prototypal "pillared sheet" platform o?ering opportunities to control the pore sizes. Its structural features, low cost and facile synthesis make it a great candidate to fabricate membranes for gas separation. The key to obtaining thin, continuous Cu(bipy)2(SiF6) membranes is to control the Cu(bipy)2(SiF6) crystal growth and enhance the binding between membrane and substrate. Here we explored a new route by direct synthesis and successfully obtained a continuous thin Cu(bipy)2(SiF6) membrane on a macroporous glass-frit disk with high robustness. It is speculated that the SiF6 2- used to construct the Cu(bipy)2(SiF6) membrane came from the ?uorinated substrate. The Cu(bipy)2(SiF6) membrane shows the separation factors of H2-CO2, H2-CH4 and H2-N2 are 8.0, 7.5, and 6.8 respectively at 293 K and 1 bar with H2 permeance of 2.7* 10- 7 mol m-2 s -1 Pa-1 as well as high thermal stability. We expect to explore more membranes of Cu(bipy)2(SiF6) analogues with tuneable pore sizes using this route and to obtain membranes with higher gas separation performance.
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    Journal Title
    Journal of Materials Chemistry A: Materials for Energy and Sustainability
    Volume
    1
    Issue
    37
    DOI
    https://doi.org/10.1039/c3ta11604b
    Copyright Statement
    © 2013 Royal Society of Chemistry. This is the author-manuscript version of this paper. Reproduced in accordance with the copyright policy of the publisher. Please refer to the journal website for access to the definitive, published version.
    Subject
    Inorganic chemistry not elsewhere classified
    Macromolecular and materials chemistry
    Materials engineering
    Publication URI
    http://hdl.handle.net/10072/54470
    Collection
    • Journal articles

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