P-Mo-64 A sinter-resistant catalytic system based on platinum nanoparticles supported on TiO2 nanofibers and covered by porous silica

Monday, June 6, 2011
Ontario Exhibit Hall (Detroit Marriott Hotel at the Renaissance Center )
Kyunghwan Yoon1, Yunqian Dai1, Byungkwon Lim1, Claire M. Cobley1, Weiyang Li1, Eun Chul Cho1, Younan Xia1, Yong Yang2, Charles T. Campbell3, Benjamin Grayson4, Paul Fanson4 and Yueming Sun5, (1)Biomedical Engineering, Washington University in St. Louis, St. Louis, MO, (2)Department of Chemistry and Institute for Interfacial Catalysis, University of Washington and Pacific Northwest National Laboratory, Richland, WA, (3)Chemistry, University of Washington, Seattle, WA, (4)Toyota Motor Engineering & Manufacturing, Ann Arbor, MI, (5)Southeast University, Nanjing, China
We demonstrated a sinter-resistant catalytic system based on TiO2-supported Pt nanoparticles coated by a porous SiO2. The porous-SiO2/Pt/TiO2 system could resist sintering up to 750 °C. Significantly, it was catalytically active towards methyl red hydrogenation even after calcination. This strategy should be extendible to other catalytic systems with different compositions.

Extended Abstracts:

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