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Preparation, characterization and catalytic behavior of nanostructured mesoporous CuO/Ce0.8Zr0.2O2 catalysts for low-temperature CO oxidation

Paper ID Volume ID Publish Year Pages File Format Full-Text
48529 46511 2008 9 PDF Available
Title
Preparation, characterization and catalytic behavior of nanostructured mesoporous CuO/Ce0.8Zr0.2O2 catalysts for low-temperature CO oxidation
Abstract

High-surface area mesoporous CuO/Ce0.8Zr0.2O2 catalysts were prepared by a surfactant-assisted method of nanocrystalline particle assembly, and characterized by XRD, N2 adsorption, TEM, H2-TPR, TG-DTA and XPS techniques. The catalytic properties of the CuO/Ce0.8Zr0.2O2 nanocatalysts were evaluated by low-temperature carbon monoxide oxidation using a microreactor-GC system. XRD and TEM analysis indicated that the catalyst particles were nanoscaled with cubic, fluorite structure. N2 adsorption–desorption isotherms revealed a mesoporous nanocatalyst system with high-surface area and uniform pore-size distribution. The results of catalytic activity measurements showed that these mesoporous nanostructured CuO/Ce0.8Zr0.2O2 catalysts were very active for low-temperature CO oxidation. The catalytic behavior depended on the CuO loading amount, the calcination temperature, the surface area and the particle size of the catalyst. The catalyst with 25 mol% CuO loading and calcined at 400 °C exhibited the highest catalytic activity.

Keywords
CuO/Ce0.8Zr0.2O2 catalysts; Mesoporous; Nanostructured; Low-temperature CO oxidation; Catalytic activity
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Preparation, characterization and catalytic behavior of nanostructured mesoporous CuO/Ce0.8Zr0.2O2 catalysts for low-temperature CO oxidation
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis B: Environmental - Volume 78, Issues 1–2, 17 January 2008, Pages 120–128
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
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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
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