Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
44651 | Applied Catalysis A: General | 2006 | 7 Pages |
Abstract
BaMn0.6Fe0.4O3, BaMn0.4Fe0.6O3, LaMn0.6Fe0.4O3, LaMn0.4Fe0.6O3, PrMn0.6Fe0.4O3, and PrMn0.4Fe0.6O3 perovskites were synthesized via malic acid complexation and impregnated with 2% of palladium by dry-wet method. WGSR measurements were carried out in a stainless steel continuous flow reactor. The A-site metal increased the conversion of H2 and CO2 in the order Ba < La < Pr. Comparison of the B-site metal combinations showed higher conversions for Mn0.4Fe0.6 than Mn0.6Fe0.4. The formation of carbonaceous surface species was observed. In measurements with a gas chromatograph, the oxidation of surface palladium was found to decrease in the order La > Pr > Ba. No correlation was observed between WGSR activity and oxidation of palladium.
Keywords
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Catalysis
Authors
Markus J. Koponen, Tapani Venäläinen, Mika Suvanto, Kauko Kallinen, Toni-J.J. Kinnunen, Matti Härkönen, Tapani A. Pakkanen,