Oxidation of solid gold in chloroform solutions of cetyltrimethylammonium bromide

被引：14

作者：

Mortier, T ^{[1
]}

Persoons, A ^{[1
]}

Verbiest, T ^{[1
]}

机构：

[1] Catholic Univ Louvain, Dept Chem, B-3001 Heverlee, Belgium

来源：

INORGANIC CHEMISTRY COMMUNICATIONS | 2005年 / 8卷 / 12期

关键词：

gold; cetyltrimethylammonium bromide; sonication; nanoparticles;

D O I：

10.1016/j.inoche.2005.08.015

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

oxidation of solid gold was studied in chloroform solutions of cetyltrimethylammonium bromide (CTAB). We observed that, upon sonication, solid gold is oxidized and cetyltrimethylammonium tetrabromo aurate is formed. The Br- ions act as a nucleophile that lowers the reduction potential of gold and molecular oxygen from the air acts as an oxidant. Addition of hydrazine to the sonicated solution leads to the formation of gold nanoparticles dispersed in chloroform. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：1075 / 1077

页数：3