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CuO and CeO2 catalysts supported on Al2O3, ZrO2, and SiO2 in the oxidation of CO at low temperature

Paper ID Volume ID Publish Year Pages File Format Full-Text
43254 45960 2008 9 PDF Available
Title
CuO and CeO2 catalysts supported on Al2O3, ZrO2, and SiO2 in the oxidation of CO at low temperature
Abstract

The effect of the support, Al2O3, ZrO2, and SiO2, on the activity for CO oxidation of a series of CuO and CeO2 monometallic and bimetallic catalysts was studied. The catalysts were prepared by coimpregnation of the support with the adequate amount of Cu and Ce nitrates to obtain a loading of 2% Cu and/or 8% Ce. It was found that the support has a strong influence on the activity of the different bimetallic catalysts. Interestingly, the SiO2 supported catalyst shows the higher activity. The bimetallic supported catalysts follow the activity sequence CuO–CeO2/SiO2 > CuO–CeO2/ZrO2 > CuO–CeO2/Al2O3. In the absence of CeO2, the most active monometallic catalyst was the CuO/ZrO2 system. The different degree of interaction between CuO and CeO2 particles, induced by the support, can explain the activity results for the bimetallic catalysts.

Graphical abstractThe effect of the support, Al2O3, ZrO2, and SiO2, on the activity for CO oxidation of a series of CuO and CeO2 monometallic and bimetallic catalysts was studied. The catalysts were prepared by coimpregnation of the support with the adequate amount of Cu and Ce nitrates to obtain a loading of 2% Cu and/or 8% Ce. It was found that the support has a strong influence on the activity of the different bimetallic catalysts. Interestingly, the SiO2 supported catalyst shows the higher activity. The bimetallic supported catalysts follow the activity sequence CuO–CeO2/SiO2 > CuO–CeO2/ZrO2 > CuO–CeO2/Al2O3. In the absence of CeO2, the most active monometallic catalyst was the CuO/ZrO2 system. The different degree of interaction between CuO and CeO2 particles, induced by the support, can explain the activity results for the bimetallic catalysts.Figure optionsDownload full-size imageDownload as PowerPoint slide

Keywords
Al2O3; SiO2; ZrO2; Copper; CeO2; CO oxidation
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CuO and CeO2 catalysts supported on Al2O3, ZrO2, and SiO2 in the oxidation of CO at low temperature
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 343, Issues 1–2, 1 July 2008, Pages 16–24
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
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Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
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Any Questions? feel free to contact us