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29-P-17-Zirconia nanoparticles in ordered mesoporous material SBA-15

MPG-Autoren
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Sauer,  J.
Research Department Schüth, Max-Planck-Institut für Kohlenforschung, Max Planck Society;

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Kaskel,  Stefan
Research Group Kaskel, Max-Planck-Institut für Kohlenforschung, Max Planck Society;

Janicke,  M.
Research Department Schüth, Max-Planck-Institut für Kohlenforschung, Max Planck Society;

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Schüth,  Ferdi
Research Department Schüth, Max-Planck-Institut für Kohlenforschung, Max Planck Society;

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Zitation

Sauer, J., Kaskel, S., Janicke, M., & Schüth, F. (2001). 29-P-17-Zirconia nanoparticles in ordered mesoporous material SBA-15. In Studies in Surface Science and Catalysis (pp. 315). Amsterdam: Elsevier. doi:10.1016/S0167-2991(01)81712-2.


Zitierlink: http://hdl.handle.net/11858/00-001M-0000-0024-2FD2-4
Zusammenfassung
This chapter discusses zirconia nanoparticles in ordered mesoporous material SBA-15. Zirconia particles are incorporated in the ordered mesoporous material SBA-15 by impregnating the calcined host material with zirconia precursor solutions and subsequent heat treatments. The materials are characterized by X-ray diffraction (XRD), N2-sorption, transmission electron microscopy (TEM), and energy-dispersive X-ray spectroscopy (EDX). Different analytical techniques indicate the incorporation of zirconia clusters inside the host structure with particle sizes between 3 and 5 nm and the existence of a small amount of zirconia particles outside the host structure. According to the XRD pattern, the SBA-15 support stabilizes the tetragonal phase and the particle size up to a temperature of 1373 K. The materials are additionally sulfated by standard methods and exhibit in contrast to sulfated bulk zirconia a lower catalytic activity in the n-butane isomerization.