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	On the origin of the unique properties of supported Au nanoparticles
	Chen, M ; Cai, Y ; Yan, Z ; Goodman, DW ; Chen MS(陈明树)
	2006
关键词	CO-OXIDATION GOLD NANOPARTICLES ELECTRONIC-PROPERTIES CATALYTIC-ACTIVITY BIMETALLIC SURFACES AU/TIO2 CATALYST METAL PARTICLES MODEL CATALYSTS CARBON-MONOXIDE ADSORPTION
英文摘要	The unique catalytic activity of supported Au nanoparticles has been ascribed to various effects including thickness/ shape, the metal oxidation state, and support effects. Previously, we reported the synthesis of ordered Au monolayers and bilayers on TiOx, with the latter being significantly more active for CO oxidation than the former. In the present study, the electronic and chemical properties of ordered monolayer and bilayer Au films have been characterized by infrared reflection adsorption spectroscopy using CO as a probe and ultraviolet photoemission spectroscopy. The Au overlayers are found to be electron-rich and to have significantly different electronic properties compared with bulk Au. The common structural features of ordered Au bilayers and Au bilayer nanoparticles on TiO2(110) are described, and the exceptionally high catalytic activity of the Au bilayer structure related to its unique electronic properties.
语种	英语
内容类型	期刊论文
源URL	[http://dspace.xmu.edu.cn/handle/2288/64117]
专题	化学化工－已发表论文
推荐引用方式 GB/T 7714	Chen, M,Cai, Y,Yan, Z,et al. On the origin of the unique properties of supported Au nanoparticles[J],2006.
APA	Chen, M,Cai, Y,Yan, Z,Goodman, DW,&陈明树.(2006).On the origin of the unique properties of supported Au nanoparticles..
MLA	Chen, M,et al."On the origin of the unique properties of supported Au nanoparticles".(2006).

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