Pt-Au core/shell nanorods: Preparation and applications as electrocatalysts for fuel cells

Chen Wei Liu, Yu Chen Wei, Kuan Wen Wang

研究成果: 書貢獻/報告類型會議論文篇章同行評審

摘要

In this study, carbon-supported Pt-Au nanorods with core/shell structures and excellent electrochemical performance are prepared successfully by a facile wet chemical reduction method. The morphology and electrocatalytic activity correlation, including surface states/structures dependent ORR and FAO performance of Pt-Au nanorods are also explored. The ORR activity and long-term durability of Pt-Au nanorods are both better than those of commercial Pt/C due to the Au alloying and the 1-D morphology. Besides, it can be observed that for Pt shell nanorods, the surface is completely composed of Pt species, exhibiting high CO oxidation activity. On the other hand, the PtAu shell nanorods consisting of Pt and Au surface species, specifically promote FAO. The Pt-Au nanorods with 1-D morphology may enhance the electrochemical activity of ORR, FAO and CO oxidation.

原文???core.languages.en_GB???
主出版物標題Technical Proceedings of the 2011 NSTI Nanotechnology Conference and Expo, NSTI-Nanotech 2011
頁面658-661
頁數4
出版狀態已出版 - 2011
事件Nanotechnology 2011: Advanced Materials, CNTs, Particles, Films and Composites - 2011 NSTI Nanotechnology Conference and Expo, NSTI-Nanotech 2011 - Boston, MA, United States
持續時間: 13 6月 201116 6月 2011

出版系列

名字Technical Proceedings of the 2011 NSTI Nanotechnology Conference and Expo, NSTI-Nanotech 2011
1

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???event.eventtypes.event.conference???Nanotechnology 2011: Advanced Materials, CNTs, Particles, Films and Composites - 2011 NSTI Nanotechnology Conference and Expo, NSTI-Nanotech 2011
國家/地區United States
城市Boston, MA
期間13/06/1116/06/11

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