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Cited by 492

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Oriented Zeolitic Imidazolate Framework-8 Membrane with Sharp H2/C3H8 Molecular Sieve Separation

Bux, Helge, Feldhoff, Armin, Cravillon, Janosch, Wiebcke, Michael, Li, Yan-Shuo, Caro, Juergen·2011·Chemistry of Materials

Abstract

A highly oriented zeolitic imidazolate framework 8 (ZIF-8) composite membrane was prepared by seeding and secondary growth. By dip-coating, preformed ZIF-8 nanocrystals were attached to the surface of a porous α-alumina support using polyethyleneimine as the coupling agent. After solvothermal treatment, a continuous and well-intergrown ZIF-8 layer was obtained. X-ray diffraction analysis of the membrane showed preferred orientation of the {100} plane parallel to the support. Further time-dependent investigations by scanning and transmission electron microscopy as well as X-ray diffraction indicated that the preferred orientation develops during an evolutionary growth process. In gas mixture permeation experiments, the membrane showed good performance in H 2 /hydrocarbon separation. A sharp molecular sieve separation is observed for an equimolar H 2 /C 3 H 8 mixture with a separation factor above 300.

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Metadata

Authors
Bux, H., Feldhoff, A., Cravillon, J., Wiebcke, M., Li, Y.-S., & Caro, J.
Venue
Chemistry of Materials
Published
2011-03-22
Volume
23
Issue
8
Pages
2262-2269
ISSN
  • 0897-4756 (ISSN-L)
  • 1520-5002
OpenAlex
W2326341713
Cited by
492
References
2
FWCI
77.97
Type
journal article
Language
en
Open access
closed

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