Syntheses of Porous Self-Supporting Metal-Nanoparticle Assemblies with 3D Morphologies Inherited from Biosilica Templates (Diatom Frustules)

被引：83

作者：

Bao, Zhihao ^{[1
]}

Ernst, Eric M. ^{[1
]}

Yoo, Sehoon ^{[1
]}

Sandhage, Kenneth H. ^{[1
,2
]}

机构：

[1] Georgia Inst Technol, Sch Mat Sci & Engn, Atlanta, GA 30332 USA

[2] Georgia Inst Technol, Sch Chem & Biochem, Atlanta, GA 30332 USA

来源：

ADVANCED MATERIALS | 2009年 / 21卷 / 04期

关键词：

NANOPOROUS GOLD; SILVER NANOPARTICLES; FABRICATION; FILM; NANOSTRUCTURES; DEPOSITION; AREA; PD;

D O I：

10.1002/adma.200801499

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Porous 3D metal-nanoparticle assemblies with selectable morphologies are synthesized. Biosilica templates (diatom frustules) are first converted into silicon replicas via magnesiothermic reduction. Electroless metal deposition, followed by silicon dissolution, then yields metal-nanoparticle assemblies with the 3D template morphology (figure reveals a silver assembly; inset images reveal internal features after partial ion milling and EDX analysis).

引用

页码：474 / +

页数：6

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