Journal
CATALYSIS TODAY
Volume 104, Issue 1, Pages 18-24Publisher
ELSEVIER
DOI: 10.1016/j.cattod.2005.03.034
Keywords
water-gas-shift reaction; Ceria; Pd; redox properties; deactivation; dopants
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Ceria-supported precious metals have great potential for use as water-gas-shift (WGS) catalysts in fuel processors for fuel-cell applications. In this paper, we review the mechanisms that have been proposed for these catalysts and discuss the deactivation that has been observed. Since a redox mechanism appears to explain the observations about the reaction best, we briefly review what is known about ceria reduction. We also discuss methods for enhancing catalytic activity through the use of additives. (c) 2005 Elsevier B.V. All rights reserved.
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