Stabilized Nanoporous Metals by Dealloying Ternary Alloy Precursors

被引：312

作者：

Snyder, Josh ^{[1
,2
]}

Asanithi, Piyapong ^{[3
,4
]}

Dalton, Alan B. ^{[3
,4
]}

Erlebacher, Jonah ^{[1
,2
]}

机构：

[1] Johns Hopkins Univ, Dept Mat Sci & Engn, Baltimore, MD 21218 USA

[2] Johns Hopkins Univ, Dept Chem & Biomol Engn, Baltimore, MD 21218 USA

[3] Univ Surrey, Dept Phys, Guildford GU2 7XH, Surrey, England

[4] Univ Surrey, Surrey Mat Inst, Guildford GU2 7XH, Surrey, England

来源：

ADVANCED MATERIALS | 2008年 / 20卷 / 24期

关键词：

D O I：

10.1002/adma.200702760

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A small percentage of platinum added to silver/gold alloys that are then electrochemically dealloyed yields an extremely high surface area nanoporous metal, with pore size less than 4 mn, as shown in the figure (scale bar = 5 nm). The presence of surface platinum stabdizes the nanostructure to coarsening in air and electrolyte.

引用

页码：4883 / +

页数：5

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