Oscillating behavior in N{sub 2}O decomposition over Rh supported on zirconia-based catalysts: The role of the reaction conditions
Journal Article
·
· Journal of Catalysis
Rhodium particles supported on zirconia doped with neodymium oxide show an oscillating behavior in N{sub 2}O decomposition in the presence of oxygen and water, but the oscillating behavior occurs only when the zirconia surface is hydrated. The phenomenon is ascribed to a dynamic process of surface accumulation of atomic oxygen (produced by N{sub 2}O dissociation) on the Rh surface and reconstruction of these supported Rh particles above a level of oxygen coverage, with a rapid drop in the activity and release of gaseous dioxygen. This in situ reconstruction of Rh particles, however, may occur only on a hydrated surface.
- Research Organization:
- Univ. of Messina (IT)
- OSTI ID:
- 20076105
- Journal Information:
- Journal of Catalysis, Vol. 192, Issue 1; Other Information: PBD: 15 May 2000; ISSN 0021-9517
- Country of Publication:
- United States
- Language:
- English
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