Studies on state and structure of noble metals in electrocatalyst made by coprecipitation method

	Studies on state and structure of noble metals in electrocatalyst made by coprecipitation method
	Hou, ZJ ; Yu, HM ; Yi, BL ; Zhang, HM ; Hou, M ; Lei, H ; Cheng, MJ ; Bao, XH
刊名	chemical research in chinese universities
	2003
卷号	19 期号:1 页码:89-93
关键词	proton exchange membrane fuel cell coprecipitation method electrocatalyst PtRu/C XPS
产权排序	1;1
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.
WOS标题词	science & technology ; physical sciences
类目[WOS]	chemistry, multidisciplinary
研究领域[WOS]	chemistry
关键词[WOS]	ptru alloy colloids ; methanol ; electrooxidation ; performance ; oxidation
收录类别	SCI
原文出处	true
语种	英语
WOS记录号	WOS:000182586500020
公开日期	2010-11-30
内容类型	期刊论文
源URL	[http://159.226.238.44/handle/321008/82769]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
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
推荐引用方式 GB/T 7714	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.
APA	Hou, ZJ.,Yu, HM.,Yi, BL.,Zhang, HM.,Hou, M.,...&Bao, XH.(2003).Studies on state and structure of noble metals in electrocatalyst made by coprecipitation method.chemical research in chinese universities,19(1),89-93.
MLA	Hou, ZJ,et al."Studies on state and structure of noble metals in electrocatalyst made by coprecipitation method".chemical research in chinese universities 19.1(2003):89-93.