Direct Decomposition of NO on C-type Cubic Rare Earth Oxides Based on Y2O3

C-type cubic (Y0.99−xTbxBa0.01)2O2.99+δ (0 ≤ x ≤ 0.4) catalysts were prepared by coprecipitation. The NO decomposition activities at 1173 K were higher than that of (Gd0.7Y0.26Ba0.04)2O2.96 reported previously. The highest catalytic activity was obtained for (Y0.69Tb0.3Ba0.01)2O2.99+δ, and 100% NO c...

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Veröffentlicht in:Chemistry letters 2010-05, Vol.39 (5), p.456-457
Hauptverfasser: Tsujimoto, Soichiro, Mima, Koji, Masui, Toshiyuki, Imanaka, Nobuhito
Format: Artikel
Sprache:eng
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Zusammenfassung:C-type cubic (Y0.99−xTbxBa0.01)2O2.99+δ (0 ≤ x ≤ 0.4) catalysts were prepared by coprecipitation. The NO decomposition activities at 1173 K were higher than that of (Gd0.7Y0.26Ba0.04)2O2.96 reported previously. The highest catalytic activity was obtained for (Y0.69Tb0.3Ba0.01)2O2.99+δ, and 100% NO conversion into N2 and O2 was realized at 1173 K on this catalyst. Furthermore, the conversion ratio was maintained as high as 70.8% even in the presence of 5 vol % oxygen.
ISSN:0366-7022
1348-0715
DOI:10.1246/cl.2010.456