一种用于制备烷基胺稳定的钌、铂和金纳米颗粒的高效相转移方法。

A highly efficient phase transfer method for preparing alkylamine-stabilized Ru, Pt, and Au nanoparticles.

作者信息

Yang J, Lee Jim Yang, Deivaraj T C, Too Heng-Phon

机构信息

Department of Chemical and Bimolecular Engineering, National University of Singapore, 10 Kent Ridge Crescent, Singapore 119260.

出版信息

J Colloid Interface Sci. 2004 Sep 1;277(1):95-9. doi: 10.1016/j.jcis.2004.03.074.

DOI:10.1016/j.jcis.2004.03.074

PMID:15276043

Abstract

A highly efficient phase-transfer method was developed to prepare alkylamine-stabilized nanoparticles of several noble metals. This method involved first mixing the metal hydrosols and an ethanol solution of dodecylamine and then extracting the dodecylamine-stabilized metal nanoparticles into toluene. The efficiency of this phase-transfer method was nearly 100%. Alkylamine-stabilized Ru, Pt, and Au nanoparticles 3.45, 4.33, and 7.89 nm in diameter, respectively, could be prepared this way. The self-assembly of dodecylamine-stabilized Pt and Au particles was also detected by transmission electron microscopy (TEM).

摘要

开发了一种高效的相转移方法来制备几种贵金属的烷基胺稳定纳米颗粒。该方法首先将金属水溶胶与十二烷基胺的乙醇溶液混合，然后将十二烷基胺稳定的金属纳米颗粒萃取到甲苯中。这种相转移方法的效率接近100%。通过这种方法可以制备出直径分别为3.45、4.33和7.89 nm的烷基胺稳定的钌、铂和金纳米颗粒。通过透射电子显微镜（TEM）也检测到了十二烷基胺稳定的铂和金颗粒的自组装。