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学科主题: 物理化学
题名: Electrochemical preparation and characterization of PdPt nanocages with improved electrocatalytic activity toward oxygen reduction reaction
作者: Zhang, Geng1, 2;  Shao, Zhi-Gang1;  Lu, Wangting1, 2;  Xie, Feng1;  Qin, Xiaoping1;  Yi, Baolian1
通讯作者: 邵志刚
关键词: Core-shell ;  Fuel cell ;  Nanocage ;  Oxygen reduction ;  PdPt nanoalloy
刊名: ELECTROCHIMICA ACTA
发表日期: 2013-07-30
DOI: 10.1016/j.electacta.2013.04.045
卷: 103, 页:66-76
收录类别: SCI
文章类型: Article
部门归属: DNL03
项目归属: DNL0301
产权排名: 1,1
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Electrochemistry
研究领域[WOS]: Electrochemistry
英文摘要: Hollow PdPt nanocages were prepared by applying Potential cycling treatment on core shell Pd@Pt nanodendrites in 0.5 M sulfuric acid aqueous solutions, during which Pd core was dissolved and the Pd@Pt structure was transformed to hollow nanocages. The nanocages were comprised of bimetallic PdPt nanoalloys, which was confirmed by high-resolution TEM (HRTEM), scanning TEM-energy dispersive X-ray spectra (STEM-EDX), X-ray diffraction (XRD) and cyclic voltammetry (CV). The PdPt nanocages presented superior catalytic activity toward oxygen reduction reaction in comparison with Pd@Pt nanodendrites and commercial Pt/C catalysts owing to the alloying effect and special morphology. The nanocage morphology was still maintained after long-term durability testing, indicating good structure stability. (c) 2013 Elsevier Ltd. All rights reserved.
关键词[WOS]: CORE-SHELL NANOPARTICLES ;  METHANOL OXIDATION ;  PARTICLE-SIZE ;  PT-ALLOY ;  BIMETALLIC NANODENDRITES ;  CATALYTIC-ACTIVITIES ;  FUEL-CELLS ;  PLATINUM ;  NANOSTRUCTURES ;  STABILITY
语种: 英语
WOS记录号: WOS:000321601100010
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/117679
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, Fuel Cell Syst & Engn Grp, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China

Recommended Citation:
Zhang, Geng,Shao, Zhi-Gang,Lu, Wangting,et al. Electrochemical preparation and characterization of PdPt nanocages with improved electrocatalytic activity toward oxygen reduction reaction[J]. ELECTROCHIMICA ACTA,2013,103:66-76.
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