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[交流] Active Nonmetallic Au and Pt Species on Ceria-Based Water-Gas Shift Catalysts

Science 301, 935 (2003);
DOI: 10.1126/science.1085721
CeO2负载Pt和Au,并用来做水汽转化反应的高质量文章。
摘要: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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