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CO oxidation over gold-supported catalysts-coated ceramic foams prepared from stainless steel wastes

Paper ID Volume ID Publish Year Pages File Format Full-Text
43883 45993 2006 8 PDF Available
Title
CO oxidation over gold-supported catalysts-coated ceramic foams prepared from stainless steel wastes
Abstract

A multilayer replication method has been used to prepare reticulated ceramic foams from steel making wastes. These ceramic sponges have been used as support for preparing catalytic devices, after deposition of catalytic coatings of Al2O3, CeO2 and gold. The obtained catalytic systems are active to the CO oxidation reaction and may be stable with no loss of activity as far as the amount of residual water in the gaseous stream remains constant. In the absence of water and reaction temperatures of 150 °C the catalytic monolith shows 100% conversion of CO at least for 54 h. The metal content of the wastes has a positive influence in the activity of the foams. The best catalytic results are obtained for the Au/CeO2-supported foams where the oxidation capability of gold atoms is combined with the redox properties of the ceria phase.

Keywords
Gold catalysts; Wastes; CO oxidation; Ceramic foams
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CO oxidation over gold-supported catalysts-coated ceramic foams prepared from stainless steel wastes
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 302, Issue 1, 21 March 2006, Pages 96–103
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
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