| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 10636875 | Solid State Sciences | 2005 | 7 Pages |
Abstract
Ordered mesoporous materials with specific microporosity in the mesopore walls can be assembled by a secondary templating synthesis departing from a clear subcolloidal suspension dedicated to the tetrapropylammonium (TPA) mediated synthesis of colloidal Silicalite-1. A typical member of this material family is Zeotile-2. Zeotile-2 is mesostructurally similar to the cubic MCM-48 material with exceptional long-range order of the mesostructure. Zeotile-2 samples in which the TPA was either left or evacuated were prepared by leaching in boiling ethanolic acetic acid and calcination. The evacuation of the TPA gave rise to a substantial micropore volume revealed with nitrogen adsorption isotherms. The mesoporosity was independent of the presence of the TPA. Molecular separations of isooctane/octane mixtures illustrated the occurrence of molecular shape selectivity similar to MFI-type zeolites.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Sebastien P.B. Kremer, Christine E.A. Kirschhock, Alexander Aerts, Caroline A. Aerts, Kristof J. Houthoofd, Piet J. Grobet, Pierre A. Jacobs, Oleg I. Lebedev, Gustaaf Van Tendeloo, Johan A. Martens,