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Alkaline Posttreatment of MFI Zeolites. From Accelerated Screening to Scale-up
Abstract
The extraction of framework silicon, referred to as desilication, has been investigated for controlled mesoporosity development in commercial and synthesized MFI type zeolites. Several variables were successfully identified and optimized using a parallelization approach in the gram-scale. The framework Si/Al ratio of the treated zeolite is crucial for the susceptibility of the zeolite toward desilication. A NaOH solution has proven to be the most efficient medium to achieve substantial and controlled mesopore formation. Descriptors such as treatment temperature and time enable further tailoring of the porous characteristics. Importantly, the acidity and microporosity are preserved upon alkaline treatment under optimized conditions. Finally, the treatment has successfully been scaled up from gram-scale to kilogram-scale for both commercial zeolite powders and extrudates.
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Cited by
Hierarchically Structured Zeolites: From Design to Application
Chen, L.-H., Sun, M.-H., Wang, Z., Yang, W., Xie, Z., & Su, B.-L. (2020) · Chemical Reviews · doi:10.1021/acs.chemrev.0c00016 · Cited by 724
Design of hierarchical zeolite catalysts by desilication
Verboekend, D., & Pérez-Ramírez, J. (2011) · Catalysis Science & Technology · doi:10.1039/c1cy00150g · Cited by 712
Self-citationMethanol to gasoline over zeolite H-ZSM-5: Improved catalyst performance by treatment with NaOH
Bjørgen, M., Joensen, F., Spangsberg Holm, M., Olsbye, U., Lillerud, K.-P., & Svelle, S. (2008) · Applied Catalysis A: General · doi:10.1016/j.apcata.2008.04.020 · Cited by 494
Verboekend, D., Nuttens, N., Locus, R., Van Aelst, J., Verolme, P., Groen, J. C., Pérez-Ramírez, J., & Sels, B. F. (2016) · Chemical Society Reviews · doi:10.1039/c5cs00520e · Cited by 355
Self-citationFull Compositional Flexibility in the Preparation of Mesoporous MFI Zeolites by Desilication
Verboekend, D., Mitchell, S., Milina, M., Groen, J. C., & Pérez-Ramírez, J. (2011) · The Journal of Physical Chemistry C · doi:10.1021/jp201671s · Cited by 280
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Metadata
- Authors
- Groen, J. C., Moulijn, J. A., & Pérez-Ramírez, J.
- Venue
- Industrial & Engineering Chemistry Research
- Publisher
- American Chemical Society (ACS)
- Published
- 2007-01-18
- Volume
- 46
- Issue
- 12
- Pages
- 4193-4201
- ISSN
- 0888-5885 (ISSN-L)
- 1520-5045
- OpenAlex
- W2082776008
- Cited by
- 189
- References
- 0
- FWCI
- 5.87
- Type
- journal article
- Language
- en
- Open access
- closed
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- Groen, J. C., Moulijn, J. A., & Pérez-Ramírez, J. (2007). Alkaline Posttreatment of MFI Zeolites. From Accelerated Screening to Scale-up. Industrial & Engineering Chemistry Research. https://doi.org/10.1021/ie061146v
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