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Total oxidation of ethanol over Au/Ce0.5Zr0.5O2 cordierite monolithic catalysts

Paper ID Volume ID Publish Year Pages File Format Full-Text
38706 45788 2016 8 PDF Available
Title
Total oxidation of ethanol over Au/Ce0.5Zr0.5O2 cordierite monolithic catalysts
Abstract

•Gold/ceria-zirconia catalysts prepared in monolithic form needed for industrial applications using cordierite monoliths.•Depending on catalyst preparation conditions, different Au particle sizes can be obtained using the same direct anionic exchange method.•Smaller Au particle sizes result in enhanced redox properties of catalysts and improved catalytic performance in ethanol oxidation.

The aim of this work was to propose the methods for gold introduction during the preparation of monolithic catalysts and to investigate their effect on catalyst properties. Two types of catalysts were prepared: (i) monoliths washcoated with gold/ceria-zirconia powder, and (ii) gold deposited on the monoliths washcoated with ceria-zirconia powder. An important part of the work was the characterization of the catalysts, in particular Au particle size and redox properties. Catalytic performance and selectivity were evaluated using ethanol gas-phase oxidation. It was shown that the enhanced reducibility of the catalysts with higher Au dispersion leads to improved catalytic performance.

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Keywords
Oxidation; Volatile organic compounds; Gold; Ceria-zirconia mixed oxide; Ethanol; Monoliths
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 522, 25 July 2016, Pages 130–137
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