Photochemical Synthesis and Electro-catalytic Activity of Au Core/Pt Shell Composite Nanoparticles

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	Photochemical Synthesis and Electro-catalytic Activity of Au Core/Pt Shell Composite Nanoparticles
	Dong Yingnan 1; Dong Shouan 1; Tang Chun 1; Yang Xikun 3
刊名	RARE METAL MATERIALS AND ENGINEERING
	2013
卷号	42 期号:4 页码:789-792
关键词	GOLD NANOPARTICLES GROWTH photochemical synthesis Au core@Pt shell composite nanoparticle methanol electro-catalysis
ISSN号	1002-185X
其他题名	Photochemical Synthesis and Electro-catalytic Activity of Au Core/Pt Shell Composite Nanoparticles
英文摘要	A series of Au@Pt composite nanoparticles was synthesized by photochemical coreduction in the PEG-acetone aqueous solutions containing Au(III) and Pt(IV) ions with different molar ratios. The resulting composites were supported on carbon black for preparing Au@Pt/C catalysts, respectively. By the characterization of UV-Vis spectrum, TEM and HR-TEM, a spherical Au core Pt shell composite nano-structure was confirmed. The chemical state and structure character of the composite nanoparticles and the catalytic property of Au@Pt/C catalysts were analyzed by XPS, EDS and electrochemical method, respectively. The results show that all of Au@Pt/C catalysts with different Au:Pt molar ratios have high catalytic activity and stability for methanol oxidation; among them, the catalytic activity of the Au@Pt/C catalyst formed at Au:Pt=1:1 is the highest and is about 4 times than that of commercial Pt/C catalyst. The primary cause of high catalytic activity of the core/shell structure was discussed.
语种	英语
CSCD记录号	CSCD:4828297
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/157295]
专题	金属研究所_中国科学院金属研究所
作者单位	1.Kunming Institute Precious Met, State Kay Lab Adv Technol Comprehens Utilizat Pla, Kunming 650106, Peoples R China 2.中国科学院金属研究所 3.Kunming University Sci & Technol, Kunming 650093, Peoples R China
推荐引用方式 GB/T 7714	Dong Yingnan,Dong Shouan,Tang Chun,et al. Photochemical Synthesis and Electro-catalytic Activity of Au Core/Pt Shell Composite Nanoparticles[J]. RARE METAL MATERIALS AND ENGINEERING,2013,42(4):789-792.
APA	Dong Yingnan,Dong Shouan,Tang Chun,&Yang Xikun.(2013).Photochemical Synthesis and Electro-catalytic Activity of Au Core/Pt Shell Composite Nanoparticles.RARE METAL MATERIALS AND ENGINEERING,42(4),789-792.
MLA	Dong Yingnan,et al."Photochemical Synthesis and Electro-catalytic Activity of Au Core/Pt Shell Composite Nanoparticles".RARE METAL MATERIALS AND ENGINEERING 42.4(2013):789-792.