Comparative studies between synthetic routes of SiO2@Au composite nanoparticles

CORC > 兰州化学物理研究所 > 中国科学院兰州化学物理研究所 > 固体润滑国家重点实验室

	Comparative studies between synthetic routes of SiO2@Au composite nanoparticles
	Zhang JY(张俊彦)
刊名	Materials Research Bulletin
	2007
卷号	42 页码:1457-1467
关键词	Nanostructures Chemical synthesis Electron microscopy
ISSN号	0025-5408
通讯作者	陈萌
中文摘要	We studied two different methods for the deposition of Au nanoparticles (Au NPs) onto the functionalized silica microspheres. One method was to mix the two kinds of particles together and react at room temperature overnight. The other one was to reduce hydrochloroauric acid to Au NPs with sodium citrate in the presence of the functionalized silica microspheres (one for the naked silica microspheres, the other for the Au-attached silica microspheres). We investigated the morphologies of SiO2@Au composite nanoparticles synthesized by these two methods, and found that the latter achieved a denser Au coverage on silica microspheres. Furthermore, we studied the effect of the pH values in a wide range, respectively, for the two methods. A possible mechanism was put forward to interpret the formation of SiO2@Au composite nanoparticles and the effects of the synthetic routes and pH values on the morphologies and optical properties.
学科主题	材料科学与物理化学
收录类别	SCI
资助信息	the Scientific Research Foundation for the Returned Overseas Chinese Scholars, Ministry of Education, PR China;the National Natural Science Foundation of China (No. 20473024)
语种	英语
WOS记录号	WOS:000247786700010
公开日期	2013-11-01
内容类型	期刊论文
源URL	[http://210.77.64.217/handle/362003/4035]
专题	兰州化学物理研究所_固体润滑国家重点实验室
推荐引用方式 GB/T 7714	Zhang JY. Comparative studies between synthetic routes of SiO2@Au composite nanoparticles[J]. Materials Research Bulletin,2007,42:1457-1467.
APA	张俊彦.(2007).Comparative studies between synthetic routes of SiO2@Au composite nanoparticles.Materials Research Bulletin,42,1457-1467.
MLA	张俊彦."Comparative studies between synthetic routes of SiO2@Au composite nanoparticles".Materials Research Bulletin 42(2007):1457-1467.