A study of phase transfer processes of Ag nanoparticles

IMR OpenIR

	A study of phase transfer processes of Ag nanoparticles
	D. G. Li; S. H. Chen; S. Y. Zhao; X. M. Hou; H. Y. Ma; X. G. Yang
	2002
发表期刊	Applied Surface Science
ISSN	0169-4332
卷号	200 期号:1-4 页码:62-67
摘要	With the protection of sodium oleate, Ag nanoparticles are produced through the reduction of AgNO3 with NaBH4 in an aqueous solution. The possible mechanism of phase transfer of the Ag nanoparticles was discussed. At a suitable concentration of sodium oleate, after adding NaH2PO4, the oleic acid molecule can change its position on the surface of Ag nanoparticles under the effects of water and toluene and become amphipathic. So most of the nanoparticles form a film between water/toluene. For the case of a higher concentration of sodium oleate, excess sodium oleate will form a closed monolayer film on the surface of the Ag nanoparticles. After adding NaH2PO4, the oleic acid molecule cannot move on the Ag nanoparticles surface, thus the colloid particles are hydrophobic but not amphipathic. So most of the particles transfer to the organic phase. UV-Vis spectra, TEM and conventional metallographic microscopy are used to characterize the Ag nanoparticles and nanoparticles films. (C) 2002 Elsevier Science B.V. All rights reserved.
部门归属	shandong univ, dept chem, jinan 250100, peoples r china. state key lab corros & protect met, shenyang 110015, peoples r china.;chen, sh (reprint author), shandong univ, dept chem, jinan 250100, peoples r china
关键词	Ag Nanoparticles Phase Transfer Mechanism Amphipathic Thin-films Silver Particles
URL	查看原文
WOS记录号	WOS:000178896900008
引用统计	被引频次：30[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/321006/36308
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	D. G. Li,S. H. Chen,S. Y. Zhao,et al. A study of phase transfer processes of Ag nanoparticles[J]. Applied Surface Science,2002,200(1-4):62-67.
APA	D. G. Li,S. H. Chen,S. Y. Zhao,X. M. Hou,H. Y. Ma,&X. G. Yang.(2002).A study of phase transfer processes of Ag nanoparticles.Applied Surface Science,200(1-4),62-67.
MLA	D. G. Li,et al."A study of phase transfer processes of Ag nanoparticles".Applied Surface Science 200.1-4(2002):62-67.