Catalytic decomposition of N2O over supported rhodium catalysts : High activities of Rh/USY and Rh/Al2O3 and the effect of Rh precursors

The catalytic decomposition of nitrous oxide to nitrogen and oxygen has been studied over Al2O3-supported and zeolite-supported Rh catalysts. The activities of Rh/Al2O3 and Rh/USY (ultrastable Y zeolite) catalysts prepared from Rh(NO3)3 were higher than those of Rh/ZSM-5 and Rh/ZnO reported in the l...

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Bibliographic Details
Published in:Catalysis letters 1997-01, Vol.47 (3-4), p.173-175
Main Authors: YUZAKI, K, YARIMIZU, T, ITO, S.-I, KUNIMORI, K
Format: Article
Language:English
Subjects:
Aluminum oxide
Catalysis
Catalysts
Catalytic activity
Catalytic reactions
Chemistry
Decomposition
Exact sciences and technology
General and physical chemistry
Nitrous oxide
Precursors
Rhodium
Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry
Zeolites
Zinc oxide
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Summary:The catalytic decomposition of nitrous oxide to nitrogen and oxygen has been studied over Al2O3-supported and zeolite-supported Rh catalysts. The activities of Rh/Al2O3 and Rh/USY (ultrastable Y zeolite) catalysts prepared from Rh(NO3)3 were higher than those of Rh/ZSM-5 and Rh/ZnO reported in the literature, while the activity of a Rh/Al2O3 catalyst prepared from RhCl3 was suppressed severely in spite of the high H/Rh and CO/Rh values. The catalytic activity of N2O decomposition was sensitive not only to the Rh dispersion but also to the preparation variables such as the Rh precursors and the supports used.
ISSN:1011-372X
1572-879X
DOI:10.1023/A:1019017407609