Controllable synthesis of gold nanoparticles with ultrasmall size and high monodispersity via continuous supplement of precursor

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	Controllable synthesis of gold nanoparticles with ultrasmall size and high monodispersity via continuous supplement of precursor
	Li, YY; Liu, SJ; Yao, T; Sun, ZH; Jiang, Z（姜政）; Huang, YY（黄宇营）; Cheng, H; Huang, YY; Jiang, Y; Xie, Z; Pan, GQ; Yan, WS; Wei, SQ
	2012
Source Publication	DALTON TRANSACTIONS
ISSN	1477-9226
Volume	41 Issue:38
Abstract	Synthesis of monodisperse small Au nanoparticles in a controllable manner is of great importance for fundamental science and technical applications. Here, we report a "precursor continuous-supply" strategy for controllable synthesis of 0.9-3.3 nm Au nanoparticles with a narrow size distribution of 0.1-0.2 nm, using a weak reductant to slow-down the reducing rate of AuClPPh3 precursor in ethanol. Time-dependent X-ray absorption and UV-Vis absorption measurements revealed that owing to the joint use of AuClPPh3 and ethanol, the remnant AuClPPh3 was self-supplied and the precursor concentration was maintained at a level near to its equilibrium solubility (ca. 1.65 mmol L-1) in ethanol. Hence the nucleation duration was extended that focused the initial size distribution of the Au clusters. With reaction going on for 58 min, most of AuClPPh3 with a nominal Au concentration of 17.86 mmol L-1 was converted to ethanol-soluble Au clusters with a size of about 1.0 nm, resulting in a high-yield synthesis.
Language	英语
Funding Project	应物所项目组
WOS ID	WOS:000308655800027
Citation statistics
Document Type	期刊论文
Identifier	http://ir.sinap.ac.cn/handle/331007/13108
Collection	中科院上海应用物理研究所2011-2020年
Recommended Citation GB/T 7714	Li, YY,Liu, SJ,Yao, T,et al. Controllable synthesis of gold nanoparticles with ultrasmall size and high monodispersity via continuous supplement of precursor[J]. DALTON TRANSACTIONS,2012,41(38).
APA	Li, YY.,Liu, SJ.,Yao, T.,Sun, ZH.,Jiang, Z.,...&Wei, SQ.(2012).Controllable synthesis of gold nanoparticles with ultrasmall size and high monodispersity via continuous supplement of precursor.DALTON TRANSACTIONS,41(38).
MLA	Li, YY,et al."Controllable synthesis of gold nanoparticles with ultrasmall size and high monodispersity via continuous supplement of precursor".DALTON TRANSACTIONS 41.38(2012).

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