NDLI: Effect of Aging Time and Calcination on the Preferential Oxidation of CO Over Au Supported on Doped Ceria

Content Provider	Springer Nature Link
Author	Jain, Abhishek Zhao, Xin Kjergaard, Shane Stagg Williams, Susan M.
Copyright Year	2005
Abstract	Au/CeLaOx mixed oxide catalysts containing 0.6–1.0 wt% Au were prepared by co-precipitation with Na2CO3. BET surface areas ranged from 15 to 45 m2/g depending on aging time (precipitation time) and calcination conditions. The differences in the activity of the catalysts for preferential oxidation (PROX) of CO are ascribed to the differences in the metal loading, Ce/La ratio and support crystallinity, chloride content, and the resultant effect on the reduction properties of the catalysts. The catalysts did not require activation in H2 prior to reaction. The temperature at which the catalysts exhibit significant activity correlates with the temperature of reduction, indicating that reduction of the metal and support is important for high activity.
Starting Page	191
Ending Page	197
Page Count	7
File Format	PDF
ISSN	1011372X
Journal	Catalysis Letters
Volume Number	104
Issue Number	3-4
e-ISSN	1572879X
Language	English
Publisher	Kluwer Academic Publishers-Plenum Publishers
Publisher Date	2005-01-01
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	PROX of CO gold catalyst La doped Ceria aging calcination Physical Chemistry Industrial Chemistry/Chemical Engineering Pharmacy Catalysis
Content Type	Text
Resource Type	Article
Subject	Chemistry Catalysis

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Effect of Aging Time and Calcination on the Preferential Oxidation of CO Over Au Supported on Doped Ceria