Reaction Kinetics and Catalysis Letters

, Volume 63, Issue 1, pp 121–127 | Cite as

Nitric oxide decomposition over BaRuxBi1−xO3 (X=0.33, 0.50, 0.67, 1.00) perovskite-like catalysts

  • R. Bontchev
  • K. Cheshkova
  • D. Mehandjiev
  • J. Darriet


The catalytic activity of Ba2Ru0.67Bi1.33O6, Ba2RuBiO6, Ba3Ru2BiO9 and BaRuO3 towards NO-decomposition prior to and after treatment with NH3 has been studied. About 100% degree of conversion has been achieved at 400°C for samples with the highest percentage of hexagonal stacking in their crystal structures. It has been shown that the active sites are units of two or three face-sharing [RuO6] octahedra in which a strong Ru−Ru interaction takes placevia the common faces.


NO decomposition hexagonal perovskites 


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Copyright information

© Akadémiai Kiadó 1998

Authors and Affiliations

  • R. Bontchev
    • 1
  • K. Cheshkova
    • 1
  • D. Mehandjiev
    • 1
  • J. Darriet
    • 2
  1. 1.Institute of General and Inorganic ChemistrySofiaBulgaria
  2. 2.Institut de Chimie de la Matiere Condensee de BordeauxPessac CedexFrance

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