NITRIC-OXIDE DECOMPOSITION OVER BARUXBI1-XO3 (X=0.33, 0.50, 0.67, 1.00) PEROVSKITE-LIKE CATALYSTS

Authors
BONTCHEV R CHESHKOVA K MEHANDJIEV D DARRIET J
Citation
R. Bontchev et al., NITRIC-OXIDE DECOMPOSITION OVER BARUXBI1-XO3 (X=0.33, 0.50, 0.67, 1.00) PEROVSKITE-LIKE CATALYSTS, Reaction kinetics and catalysis letters, 63(1), 1998, pp. 121-127
Citations number
15
Categorie Soggetti
Chemistry Physical
Journal title
Reaction kinetics and catalysis letters → ACNP
ISSN journal
01331736
Volume
63
Issue
1
Year of publication
1998
Pages
121 - 127
Database
ISI
SICI code
0133-1736(1998)63:1<121:NDOB(0>2.0.ZU;2-1
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 a t 400 degrees C for samples with the highest percentage of hexagonal s tacking in their crystal structures. It has been shown that the active sites are units of two or three face-sharing [RuO6] octahedra in whic h a strong Ru-Ru interaction takes place via the common faces.