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

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Abstract

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.

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Authors and Affiliations

  1. Institute of General and Inorganic Chemistry, 1113, Sofia, Bulgaria

    R. Bontchev, K. Cheshkova & D. Mehandjiev

  2. Institut de Chimie de la Matiere Condensee de Bordeaux, 33608, Pessac Cedex, France

    J. Darriet

Authors
  1. R. Bontchev
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  2. K. Cheshkova
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  3. D. Mehandjiev
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  4. J. Darriet
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Bontchev, R., Cheshkova, K., Mehandjiev, D. et al. Nitric oxide decomposition over BaRuxBi1−xO3 (X=0.33, 0.50, 0.67, 1.00) perovskite-like catalysts. React Kinet Catal Lett 63, 121–127 (1998). https://doi.org/10.1007/BF02475440

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