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题名: Studies on state and structure of noble metals in electrocatalyst made by coprecipitation method
作者: Hou, ZJ;  Yu, HM;  Yi, BL;  Zhang, HM;  Hou, M;  Lei, H;  Cheng, MJ;  Bao, XH
关键词: proton exchange membrane fuel cell ;  coprecipitation method ;  electrocatalyst ;  PtRu/C ;  XPS
刊名: CHEMICAL RESEARCH IN CHINESE UNIVERSITIES
发表日期: 2003
卷: 19, 期:1, 页:89-93
收录类别: SCI
文章类型: Article
部门归属: 301
项目归属: 301
产权排名: 1;1
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Multidisciplinary
研究领域[WOS]: Chemistry
英文摘要: The electrocatalysts of Pt/C, PtRu/C and Ru/C were prepared by the impregnation method. The facet characterization, the dispersion and the particle size for the catalysts were determined by means of X-ray diffraction and transmission electron microscopy. X-ray photoelectron spectroscopy was also used to analyze the state and the valency of the noble metals. The results show that the particle size was in nanometer range and the binary metals have come into being an alloy. The platinum in the catalysts existed in zero valency. The valency of the ruthenium on the surface is different from that in the body, while the ruthenium on the surface existed in oxide-form. PtRu/C and Pt/C are of good activity to the electrooxidation of hydrogen except Ru/C. PtRu/C is more tolerant of CO than Pt/C, and CO is only adsorbed on Pt.
关键词[WOS]: PTRU ALLOY COLLOIDS ;  METHANOL ;  ELECTROOXIDATION ;  PERFORMANCE ;  OXIDATION
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000182586500020
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/82769
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 R&D Ctr, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China

Recommended Citation:
Hou, ZJ,Yu, HM,Yi, BL,et al. Studies on state and structure of noble metals in electrocatalyst made by coprecipitation method[J]. CHEMICAL RESEARCH IN CHINESE UNIVERSITIES,2003,19(1):89-93.
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