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Influence of synthesis parameters on the performance of CeO2–CuO and CeO2–ZrO2–CuO systems in the catalytic oxidation of CO in excess of hydrogen

Paper ID Volume ID Publish Year Pages File Format Full-Text
46038 46428 2013 10 PDF Available
Title
Influence of synthesis parameters on the performance of CeO2–CuO and CeO2–ZrO2–CuO systems in the catalytic oxidation of CO in excess of hydrogen
Abstract

Ce–Cu and Ce–Zr–Cu oxide systems with a flower-like morphology were prepared by slow co-precipitation in the absence of any structure directing agent. For the sake of comparison, Ce–Cu and Ce–Zr–Cu oxide samples were also prepared by a classic co-precipitation method. All the samples were calcined in air flow at 650 °C. The materials were characterized by SEM and TEM microscopy, quantitative X-ray diffraction, N2 physisorption, H2-TPR, O2-TPD and XPS. The catalytic activity of the prepared samples was evaluated in the preferential oxidation of CO in excess of H2 (CO-PROX), in the 40–190 °C temperature range.

Graphical abstractTEM images of the sample FCZCu, a Ce–Zr–Cu oxide system with flower like morphology, prepared by slow co-precipitation in the absence of any structure directing agent.Figure optionsDownload full-size imageDownload as PowerPoint slideHighlights► Nanostructured Ce/Cu and Ce/Zr/Cu oxide systems were prepared. ► The effect of the different morphology and of the role of Zr doping on the active species was evaluated. ► The CO-PROX catalytic activity was correlated with the structural characteristics.

Keywords
Hydrogen; CO-PROX; Copper; Ceria; Ceria–zirconia; Flower-like morphology
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Influence of synthesis parameters on the performance of CeO2–CuO and CeO2–ZrO2–CuO systems in the catalytic oxidation of CO in excess of hydrogen
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis B: Environmental - Volume 129, 17 January 2013, Pages 556–565
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
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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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