Thermally Stable Pt/CeO2 Hetero-Nanocomposites with High Catalytic Activity
- 24 March 2010
- journal article
- research article
- Published by American Chemical Society (ACS) in Journal of the American Chemical Society
- Vol. 132 (14), 4998-4999
- https://doi.org/10.1021/ja101110m
Abstract
Pt/CeO2 hetero-nanocomposites were prepared from Pt/CeO2@SiO2 obtained by a microemulsion-mediated method. Facilitated by the earlier calcination under the protection of a silica shell, the as-formed Pt/CeO2 hetero-nanocomposites exhibit a good thermal stability, which can preserve their pristine properties after subsequent calcination at even 450 °C. The thermally stable Pt/CeO2 hetero-nanocomposites possess the characteristics of small particle size, low aggregation, and maximized Pt/CeO2 interfaces and thus exhibit high catalytic activity in CO oxidation.Keywords
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