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题名: Improved stability of TiO2 modified Ru85Se15/C electrocatalyst for proton exchange membrane fuel cells
作者: Xu, Ting1, 2;  Zhang, Huamin1;  Zhong, Hexiang1;  Ma, Yuanwei1, 2;  Jin, Hong1, 2;  Zhang, Yining1
通讯作者: 张华民
关键词: Proton exchange membrane fuel cells ;  Electrocatalyst ;  Stability ;  Titanium dioxide
刊名: JOURNAL OF POWER SOURCES
发表日期: 2010-12-15
DOI: 10.1016/j.jpowsour.2010.07.019
卷: 195, 期:24, 页:8075-8079
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 ;  Technology
类目[WOS]: Electrochemistry ;  Energy & Fuels
研究领域[WOS]: Electrochemistry ;  Energy & Fuels
英文摘要: The electrocatalytic stability of the carbon supported Ru85Se15 nanoparticles has been improved by the modification of titanium dioxide for proton exchange membrane fuel cells (PEMFCs). Transmission electron microscopy (TEM), X-ray diffraction (XRD) measurements and inductively coupled plasma-atomic emission spectroscopy (ICP-AES) are applied for characterizing Ru85Se15/C and titanium dioxide modified Ru85Se15/C (Ru85Se15/TiO2/C) electrocatalysts. Electrochemical measurements and single cell tests are conducted for the evaluation of the electrocatalysts. The results indicate that Ru85Se15/TiO2/C electrocatalyst, presenting similar initial oxygen reduction reaction (ORR) activity with Ru85Se15/C, reveals better electrochemical stability. The final potential of Ru85Se15/TiO2/C is 137 mV higher than that of Ru85Se15/C at 2 mAcm(-2) after the electrochemical durability test. Moreover, in the single cell stability test Ru85Se15/TiO2/C also shows comparable initial performance with Ru85Se15/C, but better final performance. Therefore, the Ru85Se15/C is expected to be used as an effective cathode electrocatalyst for PEMFCs by TiO2 modification on the carbon support. (C) 2010 Elsevier B.V. All rights reserved.
关键词[WOS]: OXYGEN REDUCTION REACTION ;  CATALYST ;  NANOPARTICLES
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000282251900023
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/103543
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, PEMFC Key Mat & Technol Lab, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China

Recommended Citation:
Xu, Ting,Zhang, Huamin,Zhong, Hexiang,et al. Improved stability of TiO2 modified Ru85Se15/C electrocatalyst for proton exchange membrane fuel cells[J]. JOURNAL OF POWER SOURCES,2010,195(24):8075-8079.
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