Synthesis and Characterization of Bimetallic Copper-Gold Nanoparticles

被引：6

作者：

Larios, Eduardo ^{[1
,2
]}

Molina, Zulema ^{[1
]}

Maldonado, Amir ^{[3
]}

Tanori, Judith ^{[1
]}

机构：

[1] Univ Sonora, Dept Invest Polimeros & Mat, Hermosillo 8300, Sonora, Mexico

[2] Univ Sonora, Dept Ingn Quim & Met, Hermosillo 8300, Sonora, Mexico

[3] Univ Sonora, Dept Fis, Hermosillo 8300, Sonora, Mexico

来源：

JOURNAL OF DISPERSION SCIENCE AND TECHNOLOGY | 2012年 / 33卷 / 05期

关键词：

Bimetallic; copper-gold; core-shell; microemulsion; nanoparticles; ABSORPTION; PARTICLES; MICELLES; SHAPE;

D O I：

10.1080/01932691.2010.497682

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We have synthesized copper-gold, core-shell nanoparticles by the microemulsion method. The particles were prepared in two steps, by first reducing copper ions and then gold ions in the aqueous domains of anionic microemulsions. Two surfactants have been used as emulsifiers, AOT and Cu(AOT)(2). The latter is the source of copper ions. Gold ions come from aqueous solutions of HAuCl4. Ultraviolet-visible spectroscopy experiments show that copper nanoparticles are created in the first step of the synthesis, and that a gold layer covers them in the second step. Transmission electron microscopy and related techniques confirm the formation of copper (core)-gold (shell) nanocrystals.

引用

页码：719 / 723

页数：5

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