Small angle x-ray scattering on TPA-Silicalite-1 precursors in clear solutions: influence of silica source and cations.

C.J.Y. Houssin, B.L. Mojet, C.E.A. Kirschhock, V. Buschmann, P.A. Jacobs, J.A. Martens, R.A. Santen, van

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Abstract

The formation and growth of crystal nuclei of TPA-Silicalite-1 (aluminum free ZSM-5) from clear solns. using TEOS and silicic acid as silica sources were studied with small angle X-ray scattering (SAXS). Information was obtained on the size and shape of nanoscopic precursor particles of silicalite-1. The SAXS data can be interpreted assuming the presence of tablets of 4x2x1.3 nm up to 8x8x1.3 nm depending on the synthesis conditions. Starting solns. have been studied varying the silica source and the cations content (Sodium, Potassium and TPA). In each case well defined particle sizes are obsd. Although the nanoparticles differ in size, their shape is very similar and these data strengthen our hypothesis that TPA-Silicalite-1 formation is a nanoblock based aggregation mechanism rather than growth via monomer addn.
Original languageEnglish
Title of host publicationZeolites and mesoporous materials at the dawn of the 21st century : proceedings of the 13th International Zeolite Conference, Montpellier, France
EditorsA. Galarneau
Place of PublicationAmsterdam
PublisherElsevier
Pages135-142
ISBN (Print)0-444-50238-6
DOIs
Publication statusPublished - 2001
Eventconference; 13th International Zeolite Conference, Montpellier, France, 8 - 13 July 2001; 2001-07-08; 2001-07-13 -
Duration: 8 Jul 200113 Jul 2001

Publication series

NameStudies in Surface Science and Catalysis
Volume123
ISSN (Print)0167-2991

Conference

Conferenceconference; 13th International Zeolite Conference, Montpellier, France, 8 - 13 July 2001; 2001-07-08; 2001-07-13
Period8/07/0113/07/01
Other13th International Zeolite Conference, Montpellier, France, 8 - 13 July 2001

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Houssin, C. J. Y., Mojet, B. L., Kirschhock, C. E. A., Buschmann, V., Jacobs, P. A., Martens, J. A., & Santen, van, R. A. (2001). Small angle x-ray scattering on TPA-Silicalite-1 precursors in clear solutions: influence of silica source and cations. In A. Galarneau (Ed.), Zeolites and mesoporous materials at the dawn of the 21st century : proceedings of the 13th International Zeolite Conference, Montpellier, France (pp. 135-142). (Studies in Surface Science and Catalysis; Vol. 123). Amsterdam: Elsevier. https://doi.org/10.1016/S0167-2991(01)81214-3