Active nonmetallic Au and Pt species on ceria-based water-gas shift catalysts |
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| Authors: | Fu Qi Saltsburg Howard Flytzani-Stephanopoulos Maria |
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| Institution: | Department of Chemical and Biological Engineering, Tufts University, Medford, MA 02155, USA. |
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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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