PVP-capped twinned gold plates from nanometer to micrometer

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	PVP-capped twinned gold plates from nanometer to micrometer
	Jiang, P ; Zhou, JJ ; Li, R ; Gao, Y ; Sun, TL ; Zhao, XW ; Xiang, YJ ; Xie, SS
刊名	JOURNAL OF NANOPARTICLE RESEARCH
	2006
卷号	8 期号:6 页码:927
关键词	SHAPE-CONTROLLED SYNTHESIS UNIFORM SILVER NANOWIRES LARGE-SCALE SYNTHESIS HIGH-YIELD SYNTHESIS GROWTH-MECHANISM ASPECT-RATIO NANOSTRUCTURES NANOPARTICLES NANORODS REDUCTION
ISSN号	1388-0764
通讯作者	Jiang, P (reprint author), Natl Ctr Nanosci & Technol, 2 1st North St,Zhoangguan Cun, Beijing 100080, Peoples R China.
中文摘要	PVP (poly(vinyl pyrrolidone))-capped micrometer-sized twinned gold (Au) plates with the shape of hexagon or triangle have been successfully synthesized in a large quantity by reducing hydrogen tetrachloroauric acid (HAuCl4 center dot 3H(2)O) using ethylene glycol in the presence of (PVP) molecules at 200 degrees C under the extra condition of autogenous pressure. Clear twin boundaries in thus-obtained Au plates have been observed by scanning electron microscope (SEM). To further elucidate the mechanism of formation of the twinned Au plates, transmission electron microscopy (TEM) has been employed to characterize smaller Au nanoplates obtained simultaneously with the Au microplates, the occurrence of 1/3{422} forbidden reflections in selected area electron diffraction (SAED) can be believed to result from the presence of twinning boundary within the Au (111) plane normal to TEM electron beam. In addition, X-ray photoelectron spectroscopy (XPS) experiment has confirmed that PVP molecules exist on the surface of the Au cores, which may play a very important role in the formation and evolution of the twinned Au plates. A possible growth mechanism has been suggested to explain the Au plate evolution from nanometer to micrometer.
收录类别	SCI
语种	英语
公开日期	2013-09-24
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/51608]
专题	物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文
推荐引用方式 GB/T 7714	Jiang, P,Zhou, JJ,Li, R,et al. PVP-capped twinned gold plates from nanometer to micrometer[J]. JOURNAL OF NANOPARTICLE RESEARCH,2006,8(6):927.
APA	Jiang, P.,Zhou, JJ.,Li, R.,Gao, Y.,Sun, TL.,...&Xie, SS.(2006).PVP-capped twinned gold plates from nanometer to micrometer.JOURNAL OF NANOPARTICLE RESEARCH,8(6),927.
MLA	Jiang, P,et al."PVP-capped twinned gold plates from nanometer to micrometer".JOURNAL OF NANOPARTICLE RESEARCH 8.6(2006):927.