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Production of Nanocrystalline Sulfated Zirconia Catalysts via a Flow-Through Hydrothermal Process

Published online by Cambridge University Press:  10 February 2011

D.W. Matson ,
J.G. Darab ,
T.D. Brewer  and
P.D. Kaviratna
D.W. Matson
Affiliation:
Pacific Northwest National Laboratory, PO Box 999, Richland, WA 99352, [email protected]
J.G. Darab
Affiliation:
Pacific Northwest National Laboratory, PO Box 999, Richland, WA 99352, [email protected]
T.D. Brewer
Affiliation:
Pacific Northwest National Laboratory, PO Box 999, Richland, WA 99352, [email protected]
P.D. Kaviratna
Affiliation:
Pacific Northwest National Laboratory, PO Box 999, Richland, WA 99352, [email protected]
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Abstract

Nanocrystalline sulfated zirconia catalysts were prepared using the rapid thermal decomposition of precursors in solution (RTDS) powder formation process. Zirconia gel formation, initial crystallization, and sulfate incorporation occurred during a brief exposure to hydrothermal conditions in the RTDS reactor. The partially crystalline zirconia solid was collected as a suspension, separated by centrifugation, and subjected to calcination to achieve full catalytic activity. Crystallinity, sulfate content, and catalytic activity of the calcined powders toward butane isomerization varied according to the hydrothermal conditions at which the zirconia powders were originally precipitated. The powders were characterized using powder XRD, FTIR, and XAS.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 520: Symposium P – Nanostructured Powders & Their Industrial Application , 1998 , 287
Copyright
Copyright © Materials Research Society 1998

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References

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