Oscillating Behavior in N2O Decomposition over Rh Supported on Zirconia-Based Catalysts: The Role of the Reaction Conditions

Author： Centi G.   Dall'Olio L.   Perathoner S.  

Publisher： Academic Press

ISSN： 0021-9517

Source： Journal of Catalysis, Vol.192, Iss.1, 2000-05, pp. : 224-235

Disclaimer: Any content in publications that violate the sovereignty, the constitution or regulations of the PRC is not accepted or approved by CNPIEC.

Previous Menu Next

Abstract

Rhodium particles supported on zirconia doped with neodymium oxide show an oscillating behavior in N2O 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 N2O 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.

Related content

Oscillating Behavior in N2O Decomposition over Rh Supported on Zirconia-Based Catalysts 2. Analysis of the Reaction Mechanism

By Centi G.   Dall'Olio L.   Perathoner S.  

Journal of Catalysis, Vol. 194, Iss. 1, 2000-08 ,pp. : 130-139 (10)

Academic Press

Access to resources Recommend Favorite

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

By Yuzaki K.   Yarimizu T.   Ito S.-I.   Kunimori K.K.  

Catalysis Letters, Vol. 47, Iss. 3-4, 1997-09 ,pp. : 173-175 (3)

Springer Publishing Company

Access to resources Recommend Favorite

Hydrogen Effect on n -Butane Isomerization over Sulfated Zirconia-Based Catalysts

By Sayari A.   Yang Y.   Song X.  

Journal of Catalysis, Vol. 167, Iss. 2, 1997-02 ,pp. : 346-353 (8)

Academic Press

Access to resources Recommend Favorite

Decomposition of Methane and Subsequent Reaction of Carbonaceous Residues over Rh/Mo/Al2O3Catalysts

By Wang Z.   Rochester C.H.   Anderson J.A.  

Journal of Catalysis, Vol. 184, Iss. 1, 1999-05 ,pp. : 213-223 (11)

Academic Press

Access to resources Recommend Favorite

Mechanistic Aspects of N2O Decomposition Over Carbon Films and Carbon-Film-Supported Catalysts

By Wiśniewski Marek  

Catalysis Letters, Vol. 144, Iss. 4, 2014-04 ,pp. : 633-638 (6)

Springer Publishing Company

Access to resources Recommend Favorite