A general phase transfer protocol for synthesizing alkylamine-stabilized nanoparticles of noble metals

被引：39

作者：

Yang, J.

Lee, Jim Yang

Too, Heng-Phon

机构：

[1] Univ Toronto, Leslie Dan Fac Pharm, Toronto, ON M5S 3M2, Canada

[2] Natl Univ Singapore, Dept Chem & Environm Engn, Singapore 119260, Singapore

[3] Natl Univ Singapore, Dept Biochem, Singapore 119260, Singapore

来源：

ANALYTICA CHIMICA ACTA | 2007年 / 588卷 / 01期

关键词：

phase transfer; alkylamine; noble metal nanoparticles; self-assembly;

D O I：

10.1016/j.aca.2007.01.061

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The ethanol-mediated phase transfer protocol was extended herein to prepare alkylamine-stabilized nanoparticles of several noble metals by transferring them from aqueous environment into toluene. This method relies on the use of ethanol as a mediator to provide and maintain adequate contact between dodecylamine and metal nanoparticles during the transfer process and involves first mixing the metal hydrosols and an ethanol solution of dodecylamine and then extracting the dodecylamine-stabilized metal nanoparticles into toluene. Alkylamine-stabilized Ag, Pd, Rh, Ir and Os nanoparticles with 7.09, 3.45, 6.89, 2.42 and 4.52nm in diameter, respectively, could be prepared this way. The self-assembly of dodecylamine-stabilized Ag and Rh nanoparticles was also detected by transmission electron microscopy (TEM). (c) 2007 Elsevier B.V. All rights reserved.

引用

页码：34 / 41

页数：8

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