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Effect of ceria–zirconia ratio on the interaction of CO with PdO/Al2O3–(Cex–Zr1−x)O2 catalysts prepared by sol–gel method

Paper ID Volume ID Publish Year Pages File Format Full-Text
48621 46515 2007 7 PDF Available
Title
Effect of ceria–zirconia ratio on the interaction of CO with PdO/Al2O3–(Cex–Zr1−x)O2 catalysts prepared by sol–gel method
Abstract

The current work is devoted to study of CO interaction with PdO/Al2O3–(Cex–Zr1−x)O2 catalysts. Ceria–zirconia–alumina supports with different Ce/Zr ratio were prepared by sol–gel technique. The FT-IR characterization of CO adsorbed at −120 and 25 °C on oxidized and reduced samples revealed that Ce/Zr ratio modifies the surface properties of support and oxidation state of palladium. The catalyst with Ce/Zr molar ratio 0.5/0.5 was characterized with the highest ability to stabilize palladium in oxide state and the highest activity to oxidize CO. Redox treatment of catalysts improves their catalytic activity.

Keywords
Palladium oxide; Al2O3–(Cex–Zr1−x)O2; CO adsorption; In situ FT-IR; Catalytic CO oxidation
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Effect of ceria–zirconia ratio on the interaction of CO with PdO/Al2O3–(Cex–Zr1−x)O2 catalysts prepared by sol–gel method
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis B: Environmental - Volume 69, Issues 3–4, 15 January 2007, Pages 219–225
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us