Cage-bell structured Au-Pt nanomaterials with enhanced electrocatalytic activity toward oxygen reduction
文献类型：期刊论文
| 作者 | Qu, Jianglan; Liu, Hui; Ye, Feng; Hu, Weiwei; Yang, Jun |
| 刊名 | INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
 |
| 出版日期 | 2012-09-01 |
| 卷号 | 37期号:17页码:13191-13199 |
| 关键词 | Au-Pt nanomaterials Cage-bell structure Electrocatalysis Oxygen reduction Proton-exchange membrane fuel cells |
| ISSN号 | 0360-3199 |
| 通讯作者 | Yang, J |
| 英文摘要 | Mastery over the structure of nanomaterials enables control of their properties and enhancement of their usefulness for a given application. Herein we report a template-based approach for the synthesis of Au-Pt nanomaterials with cage-bell structures. Typically, Au nanoparticles with narrow size distributions are prepared first, followed by the Ag coating. Then Pt-II ions are reduced using citrate in the presence of core-shell Au-Ag nanoparticles, resulting in the formation of core-shell-shell Au-Ag-Pt nanoparticles with discontinuous Pt shells. Finally, Ag is removed using bis(p-sulfonatophenyl) phenylphosphane, leaving behind the hydrosol containing the Au-Pt nanomaterials with cage-bell structures. The cage-bell structured Au-Pt nanomaterials have displayed superior catalytic activity toward oxygen reduction in proton-exchange membrane fuel cells because of their relatively higher surface areas than their solid counterparts (the nano-channels on the Pt shell permit the access of the inner surface areas), and the electronic coupling effect between the inner-placed Au core and the Pt shell. Copyright (C) 2012, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved. |
| WOS标题词 | Science & Technology ; Physical Sciences ; Technology |
| 类目[WOS] | Chemistry, Physical ; Electrochemistry ; Energy & Fuels |
| 研究领域[WOS] | Chemistry ; Electrochemistry ; Energy & Fuels |
| 关键词[WOS] | PHASE-TRANSFER IDENTIFICATION ; CORE-SHELL STRUCTURES ; FUEL-CELL ; FACILE SYNTHESIS ; NANOPARTICLES ; HOLLOW ; ALLOY ; NANOSTRUCTURES ; NANOCRYSTALS ; NANOSPHERES |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000309024700139 |
| 公开日期 | 2013-10-14 |
| 版本 | 出版稿 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/3215]  |
| 专题 | 过程工程研究所_多相复杂系统国家重点实验室 |
| 作者单位 | Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Qu, Jianglan,Liu, Hui,Ye, Feng,et al. Cage-bell structured Au-Pt nanomaterials with enhanced electrocatalytic activity toward oxygen reduction[J]. INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,2012,37(17):13191-13199. |
| APA | Qu, Jianglan,Liu, Hui,Ye, Feng,Hu, Weiwei,&Yang, Jun.(2012).Cage-bell structured Au-Pt nanomaterials with enhanced electrocatalytic activity toward oxygen reduction.INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,37(17),13191-13199. |
| MLA | Qu, Jianglan,et al."Cage-bell structured Au-Pt nanomaterials with enhanced electrocatalytic activity toward oxygen reduction".INTERNATIONAL JOURNAL OF HYDROGEN ENERGY 37.17(2012):13191-13199. |
入库方式： OAI收割
来源：过程工程研究所
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