Facile synthesis of supported Pt-Cu nanoparticles with surface enriched Pt as highly active cathode catalyst for proton exchange membrane fuel cells
文献类型：期刊论文
| 作者 | Z. Xu ; H. M. Zhang ; S. S. Liu ; B. S. Zhang ; H. X. Zhong ; D. S. Su |
| 刊名 | International Journal of Hydrogen Energy
 |
| 出版日期 | 2012 |
| 卷号 | 37期号:23页码:17978-17983 |
| 关键词 | Pt-Cu Surface enriched Pt Catalyst Oxygen reduction reaction Proton exchange membrane fuel cells oxygen reduction reaction core-shell alloy nanoparticles ni electrocatalysts fe electrochemistry pemfcs |
| ISSN号 | 0360-3199 |
| 中文摘要 | Carbon supported Pt-Cu catalyst (PtCu/C) with surface enriched Pt was synthesized by annealing the Pt-deposited Cu particles. X-ray diffraction (XRD) results indicate the formation of disordered Pt-Cu alloy phase with a high level of Cu/Pt atomic ratio. X-ray photoelectron spectroscopy (XPS) and inductively coupled plasma (ICP) analysis confirm the surface enrichment of Pt. Electrochemical measurements show that PtCu/C has 3.7 times higher Pt mass activity toward the oxygen reduction reaction (ORR) than commercial Pt/C. The enhanced ORR activity of PtCu/C is attributed to the modified electronic properties of surface Pt atoms, which reduces the surface blocking of the ORR oxygenated species. Copyright (c) 2012, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved. |
| 原文出处 | |
| 公开日期 | 2013-02-05 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/60374]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 推荐引用方式 GB/T 7714 | Z. Xu,H. M. Zhang,S. S. Liu,et al. Facile synthesis of supported Pt-Cu nanoparticles with surface enriched Pt as highly active cathode catalyst for proton exchange membrane fuel cells[J]. International Journal of Hydrogen Energy,2012,37(23):17978-17983. |
| APA | Z. Xu,H. M. Zhang,S. S. Liu,B. S. Zhang,H. X. Zhong,&D. S. Su.(2012).Facile synthesis of supported Pt-Cu nanoparticles with surface enriched Pt as highly active cathode catalyst for proton exchange membrane fuel cells.International Journal of Hydrogen Energy,37(23),17978-17983. |
| MLA | Z. Xu,et al."Facile synthesis of supported Pt-Cu nanoparticles with surface enriched Pt as highly active cathode catalyst for proton exchange membrane fuel cells".International Journal of Hydrogen Energy 37.23(2012):17978-17983. |
入库方式： OAI收割
来源：金属研究所
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