Synthesis of gold nanorods and nanowires by a microwave-polyol method

被引:106
作者
Tsuji, M [1 ]
Hashimoto, M
Nishizawa, Y
Tsuji, T
机构
[1] Kyushu Univ, Inst Mat Chem & Engn, Kasuga, Fukuoka 8168580, Japan
[2] Kyushu Univ, Grad Sch Engn Sci, Dept Appl Sci Elect & Mat, Kasuga, Fukuoka 8168580, Japan
[3] Kyushu Univ, Japan Sci & Technol, CREST, Kasuga, Fukuoka 8168580, Japan
关键词
gold nanowire; polyol method; microwave heating; TEM;
D O I
10.1016/j.matlet.2004.02.020
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
HAuCl4 was reduced by ethylene glycol, in the presence of polyvinylpyrrolidone (PVP) under microwave (MW) heating in a continuous wave (CW) mode for 2 min. Dominant products were polygonal nanoplates and close-to-spherical nanoparticles of gold. In addition, small amounts of single crystalline gold nanorods and nanowires (0.5-3% of total number of products) with diameters of 20-100 nm and lengths of 0.6-5 mum were produced. The diameter and length of gold nanorods and nanowires could be controlled by changing the HAuCl4.4H(2)O/PVP ratio. The formation mechanism of anisotropic gold nanostructures was discussed. (C) 2004 Elsevier B.V. All rights reserved.
引用
收藏
页码:2326 / 2330
页数:5
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