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A novel method for fabrication of high-flux zeolite membranes on supports with arbitrary geometry

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Abstract

A novel procedure for the preparation of high-flux zeolite membranes was developed. This method relies on rendering the support hydrophobic, and thereby protected from the synthesis mixture and invasion of the support pores, while the cationic polymer on the surface still allowed deposition of zeolite seeds. Both high-flux MFI and CHA zeolite films were grown on both discs and tubular supports, which illustrates the applicability of the method to arbitrary membrane geometries. Typically, MFI disc membranes showed a very high CO2 permeance of 85 × 10−7 mol m−2 s−1 Pa−1 and a CO2/H2 separation selectivity of 56 at 278 K and CHA disc membranes showed a very high CO2 permeance of 79 × 10−7 mol m−2 s−1 Pa−1 and a CO2/CH4 separation selectivity of 76 at 249 K. As the method is applicable to supports with complex geometries, it is suitable for preparation of membranes for industrial applications.

Graphical abstract: A novel method for fabrication of high-flux zeolite membranes on supports with arbitrary geometry

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Publication details

The article was received on 21 Jan 2019, accepted on 22 Mar 2019 and first published on 25 Mar 2019


Article type: Paper
DOI: 10.1039/C9TA00789J
Citation: J. Mater. Chem. A, 2019, Advance Article
  • Open access: Creative Commons BY-NC license
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    A novel method for fabrication of high-flux zeolite membranes on supports with arbitrary geometry

    L. Yu, A. Holmgren and J. Hedlund, J. Mater. Chem. A, 2019, Advance Article , DOI: 10.1039/C9TA00789J

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