Sublimation-Induced Shape Evolution of Silver Cubes

被引：54

作者：

Ding, Yong ^{[1
]}

Fan, Fengru ^{[2
]}

Tian, Zhongqun ^{[2
]}

Wang, Zhong Lin ^{[1
]}

机构：

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

[2] Xiamen Univ, Dept Chem, Xiamen 361005, Peoples R China

来源：

SMALL | 2009年 / 5卷 / 24期

关键词：

nanocubes; silver; sublimation; surfaces; transmission electron microscopy; THERMAL-EXPANSION; MULTILAYER RELAXATION; SURFACE-ENERGY; TEMPERATURE; CU(110); GOLD;

D O I：

10.1002/smll.200901189

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The heat is on: Surface sublimation and shape transformation of silver cubes, enclosed by {100} surfaces and about 100nm in size, are examined by in situ transmission electron microscopy (see picture). High-index surfaces, such as {110}, of face-centered cubic metals are more stable when the temperature is close to the melting point.

引用

页码：2812 / 2815

页数：4

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