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A Highly Reactive and Sinter-Resistant Catalytic System Based on Platinum Nanoparticles Embedded in the Inner Surfaces of CeO(2) Hollow Fibers |
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| Authors: | Kyunghwan Yoon Yong Yang Ping Lu Dehui Wan Hsin-Chieh Peng Kimber Stamm Masias Paul T Fanson Charles T Campbell Younan Xia |
| Institution: | Department of Biomedical Engineering, Washington University in St. Louis, St. Louis, MO 63130 (USA). |
| Abstract: | Ceria (CeO(2) ) hollow fibers with Pt nanoparticles (Pt?NPs) embedded in their inner surfaces were prepared by sequentially depositing Pt?NPs and CeO(2) sheaths on electrospun fibers of polystyrene, followed by calcination in air at 400?°C. Despite a relatively low Pt loading in this system, the turnover frequency for CO oxidation was 2-3 orders of magnitude higher than those of other systems, and the reactivity was also stable up to 700?°C. |
| Keywords: | ceria hollow fibers electrospinning platinum nanoparticles sinter resistance |
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