Theoretical Investigation on the Thermal Stability of Hollow Gold Nanoparticles

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• 作者：Luyun Jiang ; Xing Yin ; Jianwei Zhao ; Hongmei Liu ; Yunhong Liu ; Fenying Wang ; Junjie Zhu ; Freddy Boey ; Hua Zhang
• 刊名：Journal of Physical Chemistry C
• 出版年：2009
• 出版时间：November 26, 2009
• 年：2009
• 卷：113
• 期：47
• 页码：20193-20197
• 全文大小：246K
• 年卷期：v.113,no.47(November 26, 2009)
• ISSN：1932-7455

文摘

The thermal stability of hollow gold nanoparticles has been studied by molecular dynamics (MD) simulations. On the basis of the MD simulation results, the hollow nanoparticles have been classified into three categories, namely, stable, half-stable, and unstable systems. The stability of hollow nanoparticles strongly depends on the wall thickness and the aspect ratio, defined as the outer radius over the wall thickness. These features can be further presented in a two-dimensional phase space according to a large number of simulations. By using this stability diagram, the collapsing mechanism has been proposed.