Characterization of Ag/Pt core-shell nanoparticles by UV-vis absorption, resonance light-scattering techniques

	Characterization of Ag/Pt core-shell nanoparticles by UV-vis absorption, resonance light-scattering techniques
	Chen, Langxing ; Zhao, Wenfeng ; Jiao, Wen ; He, Xiwen ; Wang, Jing ; Zhang, Yukui
刊名	spectrochimica acta part a-molecular and biomolecular spectroscopy
	2007-11-01
卷号	68 期号:3 页码:484-490
关键词	core-shell Ag/Pt bimetallic nanoparticles resonance light-scattering Nonlinear
英文摘要	the water-soluble ag/pt core-shell nanoparticles were prepared by deposition pt over ag colloidal seeds with the seed-growth method using k2ptcl4 with trisodium citrate as reduced agent. the ag:pt ratio is varied from 9:1 to 1:3 for synthesizing pt shell layer of different thickness. a remarkable shift and broadening of ag surface plasmon band around 410 nm was observed. the contrast of tem images of ag/pt colloids has been obtained. various techniques, such as transmission electron microscopy (tem), uv-vis absorption and resonance light-scattering spectroscopy were used to characterize nanoparticles. the data of tem, uv-vis and resonance light-scattering spectrum all confirm formation of ag/pt core-shell nanoparticles. resonance light-scattering and emission spectrum show the ag and ag/pt core-shell nanoparticles have a nonlinear light-scattering characteristic. (c) 2006 elsevier b.v. all rights reserved.
WOS标题词	science & technology ; technology
类目[WOS]	spectroscopy
研究领域[WOS]	spectroscopy
关键词[WOS]	enhanced raman-scattering ; transition-metal interfaces ; pd bimetallic clusters ; aqueous-solution ; platinum-group ; au-ag ; films ; particles ; gold ; gold/palladium
收录类别	SCI
语种	英语
WOS记录号	WOS:000250607900014
公开日期	2015-11-17
内容类型	期刊论文
源URL	[http://159.226.238.44/handle/321008/140514]
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.Nankai Univ, Dept Chem, Tianjin 30071, Peoples R China 2.Chinese Acad Sci, Dalian Inst Chem Phys, Natl Chromatog Res & Anal Ctr, Dalian 116011, Peoples R China
推荐引用方式 GB/T 7714	Chen, Langxing,Zhao, Wenfeng,Jiao, Wen,et al. Characterization of Ag/Pt core-shell nanoparticles by UV-vis absorption, resonance light-scattering techniques[J]. spectrochimica acta part a-molecular and biomolecular spectroscopy,2007,68(3):484-490.
APA	Chen, Langxing,Zhao, Wenfeng,Jiao, Wen,He, Xiwen,Wang, Jing,&Zhang, Yukui.(2007).Characterization of Ag/Pt core-shell nanoparticles by UV-vis absorption, resonance light-scattering techniques.spectrochimica acta part a-molecular and biomolecular spectroscopy,68(3),484-490.
MLA	Chen, Langxing,et al."Characterization of Ag/Pt core-shell nanoparticles by UV-vis absorption, resonance light-scattering techniques".spectrochimica acta part a-molecular and biomolecular spectroscopy 68.3(2007):484-490.