Journal
SCIENCE
Volume 301, Issue 5635, Pages 935-938Publisher
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/science.1085721
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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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