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学科主题: 物理化学
题名: Carbon-supported Pd-Pt cathode electrocatalysts for proton exchange membrane fuel cells
作者: Tang, Yongfu1, 2;  Zhang, Huamin1;  Zhong, Hexiang1;  Xu, Ting1, 2;  Jin, Hong1, 2
通讯作者: 张华民
关键词: Proton exchange membrane fuel cells ;  Oxygen reduction reaction ;  Carbon-supported Pd-Pt alloy ;  Low-platinum electrocatalyst
刊名: JOURNAL OF POWER SOURCES
发表日期: 2011-04-01
DOI: 10.1016/j.jpowsour.2010.12.048
卷: 196, 期:7, 页:3523-3529
收录类别: SCI
文章类型: Article
部门归属: DNL17
项目归属: DNL17
产权排名: 1,1
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Electrochemistry ;  Energy & Fuels
摘要: Carbon-supported Pd-Pt cathode electrocatalysts for proton exchange membrane fuel cells
研究领域[WOS]: Electrochemistry ;  Energy & Fuels
英文摘要: A series of carbon-supported Pd-Pt alloy (Pd-Pt/C) catalysts for oxygen reduction reaction (ORR) with low-platinum content are synthesized via a modified sodium borohydride reduction method. The structure of as-prepared catalysts is characterized by powder X-ray diffraction (XRD) and transmission electron microscope (TEM) measurements. The prepared Pd-Pt/C catalysts with alloy form show face-centeredcubic (FCC) structure. The metal particles of Pd-Pt/C catalysts with mean size of around 4-5 nm are uniformly dispersed on the carbon support. The electrocatalytic activities for ORR of these catalysts are investigated by rotating disk electrode (RDE), cyclic voltammetry (CV), single cell measurements and electrochemical impedance spectra (EIS) measurements. The results suggest that the electrocatalytic activities of Pd-Pt/C catalysts with low platinum are comparable to that of the commercial Pt/C with the same metal loading. The maximum power density of MEA with a Pd-Pt/C catalyst, the Pd/Pt mass ratio of which is 7:3, is about 1040 mW cm(-2). (C) 2010 Elsevier B.V. All rights reserved.
关键词[WOS]: OXYGEN REDUCTION REACTION ;  PHOSPHORIC-ACID ;  CATALYTIC-ACTIVITY ;  SURFACE ;  NANOPARTICLES ;  PLATINUM ;  ALLOYS ;  OXIDATION ;  PEMFC
语种: 英语
WOS记录号: WOS:000289325000019
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/115689
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, Lab PEMFC Key Mat & Technol, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China

Recommended Citation:
Tang, Yongfu,Zhang, Huamin,Zhong, Hexiang,et al. Carbon-supported Pd-Pt cathode electrocatalysts for proton exchange membrane fuel cells[J]. JOURNAL OF POWER SOURCES,2011,196(7):3523-3529.
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