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Active Nonmetallic Au and Pt Species on Ceria-based Water-gas Shift Catalysts

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Journal Science
Specialty Science
Date 2003 Jul 5
PMID 12843399
Citations 125
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Abstract

Traditional analysis of reactions catalyzed by supported metals involves the structure of the metallic particles. However, we report here that for the class of nanostructured gold- or platinum-cerium oxide catalysts, which are active for the water-gas shift reaction, metal nanoparticles do not participate in the reaction. Nonmetallic gold or platinum species strongly associated with surface cerium-oxygen groups are responsible for the activity.

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