Preparation of Monolithic Foamed Gold by Seed-Mediated Growth

被引：0
|
作者：
Tan Xiulan [1 ]
Niu Gao [1 ]
Li Kai [1 ]
Luo Jiangshang [1 ]
Wu Weidong [1 ]
Tang Yongjian [1 ]
机构：
[1] China Acad Engn Phys, Res Ctr Laser Fus, Mianyang 621900, Peoples R China
来源：
RARE METAL MATERIALS AND ENGINEERING | 2012年 / 41卷 / 01期
关键词：
gold foam; hollow microspheres; preparation; seed-mediated growth;
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The monolithic foamed gold was synthesized by seed-mediated growth with polystyrene (PS) template and casting procedure and heat treatment. The results indicate that the PS could be coated by gold colloid with average grain size of 4.6 nm which was made in toluene by the electrostatic effect. The deposited gold with thickness of 70-90 nm and grain size of 30-60 nm were obtained by electroless plating. It can be self-supported after the template removing. The casting procedure is analogous to slip-casting of ceramic that results in randomly-packed PS/Au spheres with void spaces between individual particles. The columniform foamed gold with hollow spheres of 8-9 mu m, diameter of 4 mm, density of 1.5 g/cm(3), and porosity of 92% was obtained after heat treatment.
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收藏
页码：169 / 172
页数：4
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