On the intergrowth structure of zeolite crystals as revealed by wide field and confocal fluorescence microscopy of the template removal processes

L. Karwacki, I. Stavitski, M.H.F. Kox, J. Kornatowski, B.M. Weckhuysen

Research output: Chapter in Book/Report/Conference proceedingChapterAcademicpeer-review

Abstract

The internal structures of four different zeolite materials: ZSM-5 (MFI structure), CrAPO-5 (AFI structure), SAPO-34 (CHA structure) and SAPO-5 (AFI structure) molecular sieves have been revealed by a new approach based on in-situ mapping of the template-removal process in individual zeolite crystals. The formation of light-absorbing and emitting species during the heating process has been monitored by a combination of wide field and confocal fluorescence microscopy. A three-dimensional distribution of the fluorescent intermediates formed during the template decomposition process allowed to visualize the architecture of the different micron-sized crystals under study. Since the accessibility of the porous network in the different subunits comprising the crystals varies the individual building blocks can be distinguished by monitoring the template-removal process in time.
Original languageUndefined/Unknown
Title of host publicationZeolites and related materials: trends, targets and challenges : proceedings of the 4th International FEZA conference
EditorsA. Gedeon, P. Massiani, F. Babonneau
Place of PublicationAmsterdam
PublisherElsevier
Pages757-762
Publication statusPublished - 2008

Publication series

NameStudies in surface science and catalysis
Number174, pt. 2

Cite this