Preparation of spindle-shape silver core-shell particles

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	Preparation of spindle-shape silver core-shell particles
	Q. S. Wu; C. B. Zhang; F. Li
	2005
发表期刊	Materials Letters
ISSN	0167-577X
卷号	59 期号:28 页码:3672-3677
摘要	Silver core-shell nanoparticles with spindle shape were successfully synthesized by the seed-mediated growth technique. Small amount of silver nanoparticles (4 +/- 1.5 nm) were immobilized on polyethylene amine (PEI) coated spindle-shape beta-FeOOH particles and served as,seeds' for further growth of silver shell. The seed catalyzed growing process was repeated for I to 4 times, the surface coverage of the silver core-shell particles was increased until a complete silver layer was formed finally. UV-visible extinction spectra showed that two absorption peaks red-shifted with the increasing surface coverage and shell completeness. Our research showed that these spindle-shape silver core-shell particles were promisingly to be used as surface enhanced Raman scattering (SERS) nanosensors. (C) 2005 Elsevier B.V. All rights reserved.
部门归属	northeastern univ, coll sci, shenyang 110004, peoples r china. chinese acad sci, inst met res, shenyang 110016, peoples r china.;zhang, cb (reprint author), northeastern univ, coll sci, shenyang 110004, peoples r china;cbzhang4616@yahoo.com.cn
关键词	Core-shell Spindle-shape Silver Nanoshell Seed-mediated Growth Sers Enhanced Raman-scattering Silica Nanoparticle Gold Nanoparticles Spectroscopy Nanoshells Spheres Composites Extinction Deposition Templates
URL	查看原文
WOS记录号	WOS:000232514200029
引用统计	被引频次：22[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/35117
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	Q. S. Wu,C. B. Zhang,F. Li. Preparation of spindle-shape silver core-shell particles[J]. Materials Letters,2005,59(28):3672-3677.
APA	Q. S. Wu,C. B. Zhang,&F. Li.(2005).Preparation of spindle-shape silver core-shell particles.Materials Letters,59(28),3672-3677.
MLA	Q. S. Wu,et al."Preparation of spindle-shape silver core-shell particles".Materials Letters 59.28(2005):3672-3677.