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Surface Cross-Linking of ZIF-8/Polyimide Mixed Matrix Membranes (MMMs) for Gas Separation
Abstract
The demand for cost-efficient separations requires membranes with high gas flux and high selectivity which opens the path for further improvements. Mixed matrix membranes (MMMs) made from 33.3 wt % ZIF-8 in 6FDA-durene were tested at 35 °C and 3.5 atm. At 33.3 wt % loading of ZIF-8, H 2, N 2, O 2, and CH 4 gas permeabilities increased approximately 400%. Cross-linking the surface of this MMM, by reacting with ethylenediamine vapor, yielded a 10-fold increase in H 2 /CO 2, H 2 /N 2, and H 2 /CH 4 selectivities with respect to 6FDA-durene, preserving 55% of the H 2 permeability of 6FDA-durene. The permselective properties of the cross-linked skin of the MMM fall above the most recent permeability–selectivity trade-off lines (2008 Robeson upper bounds) for H 2 /CO 2, H 2 /N 2, and H 2 /CH 4 separations. To the best of our knowledge, this is the first example of a cross-linked ZIF/polymer MMM for gas separation.
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Citations
Cites
Purification of Hydrogen by Pressure Swing Adsorption
SIRCAR, S., & GOLDEN, T. C. (2000) · Separation Science and Technology · doi:10.1081/ss-100100183 · Cited by 570
Cited by
Zhang, R., Ji, S., Wang, N., Wang, L., Zhang, G., & Li, J. (2014) · Angewandte Chemie International Edition · doi:10.1002/anie.201403978 · Cited by 406
Metadata
- Authors
- Wijenayake, S. N., Panapitiya, N. P., Versteeg, S. H., Nguyen, C. N., Goel, S., Balkus, K. J., Musselman, I. H., & Ferraris, J. P.
- Venue
- Industrial & Engineering Chemistry Research
- Publisher
- American Chemical Society (ACS)
- Published
- 2013-05-15
- Volume
- 52
- Issue
- 21
- Pages
- 6991-7001
- ISSN
- 0888-5885 (ISSN-L)
- 1520-5045
- OpenAlex
- W2331605639
- Cited by
- 198
- References
- 1
- FWCI
- 26.13
- Type
- journal article
- Language
- en
- Open access
- closed
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- Wijenayake, S. N., Panapitiya, N. P., Versteeg, S. H., Nguyen, C. N., Goel, S., Balkus, K. J., Musselman, I. H., & Ferraris, J. P. (2013). Surface Cross-Linking of ZIF-8/Polyimide Mixed Matrix Membranes (MMMs) for Gas Separation. Industrial & Engineering Chemistry Research. https://doi.org/10.1021/ie400149e
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