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题名: A novel sintering resistant and corrosion resistant Pt4ZrO2/C catalyst for high temperature PEMFCs
作者: Liu, Gang;  Zhang, Huamin;  Zhong, Hexiang;  Hu, Jingwei;  Xu, Dongyan;  Shao, Zhigang
通讯作者: 张华民
关键词: Pt4ZrO2/C ;  accelerated ageing test ;  sintering and corrosion resistance ;  anchor effect ;  high temperature PEMFCs
刊名: ELECTROCHIMICA ACTA
发表日期: 2006-08-15
DOI: 10.1016/j.electacta.2006.03.004
卷: 51, 期:26, 页:5710-5714
收录类别: SCI
文章类型: Article
部门归属: 3
项目归属: 303
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: A novel Pt4ZrO2/C catalyst was prepared and compared with 20 wt.% Pt/C in terms of the sintering resistance and corrosion resistance. To evaluate their sintering resistance and corrosion resistance properties, an accelerated ageing test (AAT) was performed. The catalysts before and after AAT were characterized by cyclic voltammetry (CV), rotating disk electrode (RDE) and X-ray diffraction (XRD). After AAT, the dissolution rate of Pt and Zr in H3PO4 media (105 wt.%, 204 degrees C) was characterized by inductively coupled plasma-atomic emission spectroscopy (ICP-AES). The electrochemical area (ECA) changes of thin film electrodes based on Pt4ZrO2/C and Pt/C catalysts were also evaluated using continuous CV sweep technique. All the results showed that Pt4ZrO2/C has higher sintering resistance and corrosion resistance than Pt/C. 'Anchor effect' is proposed to explain the enhanced effect of ZrO2 in Pt4ZrO2/C binary catalyst compared with Pt/C that contain platinum alone. (c) 2006 Elsevier Ltd. All rights reserved.
关键词[WOS]: MEMBRANE FUEL-CELLS ;  SURFACE-AREA LOSS ;  PHOSPHORIC-ACID ;  OXYGEN REDUCTION ;  PLATINUM ;  CARBON ;  CATHODE ;  ELECTROCATALYST ;  PERFORMANCE ;  OXIDATION
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000240167400018
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/97347
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, Proton Exchange Membrane Fuel Cell Key Mat & Tech, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China

Recommended Citation:
Liu, Gang,Zhang, Huamin,Zhong, Hexiang,et al. A novel sintering resistant and corrosion resistant Pt4ZrO2/C catalyst for high temperature PEMFCs[J]. ELECTROCHIMICA ACTA,2006,51(26):5710-5714.
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