Financial support from the DFG under projects JE260-7/1 and JE260-8/1 is acknowledged. S.J.R. acknowledges the “Studienstiftung des Deutschen Volkes” for a PhD scholarship. We are grateful to Martin Neukamm, Dr. M. Hanzslik, and Prof. Dr. S. Weinkauf for the SEM and TEM measurements. We are also grateful for fruitful discussions in the framework of the center of excellence IDECAT and the graduate school NanoCat.
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Communication
Enhancement of Sorption Processes in the Zeolite H-ZSM5 by Postsynthetic Surface Modification†
Article first published online: 12 DEC 2008
DOI: 10.1002/anie.200803869
Copyright © 2009 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Additional Information
How to Cite
Reitmeier, Stephan J., Gobin, Oliver C., Jentys, A. and Lercher, Johannes A. (2009), Enhancement of Sorption Processes in the Zeolite H-ZSM5 by Postsynthetic Surface Modification. Angew. Chem. Int. Ed., 48: 533–538. doi: 10.1002/anie.200803869
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Publication History
- Issue published online: 29 DEC 2008
- Article first published online: 12 DEC 2008
- Manuscript Received: 6 AUG 2008
Funded by
- DFG. Grant Numbers: JE260-7/1, JE260-8/1
- Studienstiftung des Deutschen Volkes
Keywords:
- adsorption;
- chemical vapor deposition;
- IR spectroscopy;
- time-resolved spectroscopy;
- zeolites
Catching molecules: When the surface of zeolite HZSM-5 (see picture, red) is modified by amorphous SiO2 layers (gray), increased surface roughness results. The mesopores in the rough SiO2 layer funnel benzene molecules into the micropores of the zeolite, thus increasing sorption rates for benzene at the acidic hydroxy groups by a factor of two. The size of the mesopores relative to the adsorbing molecules is critical for sorption-rate enhancement.