Melting Behavior of Aluminum Nanowires in Carbon Nanotubes

被引：35

作者：

Fang, R. R. ^{[1
]}

He, Y. Z. ^{[1
]}

Zhang, K. ^{[1
]}

Li, H. ^{[1
]}

机构：

[1] Shandong Univ, Key Lab Liquid Solid Struct Evolut & Proc Mat, Minist Educ, Jinan 250061, Peoples R China

来源：

JOURNAL OF PHYSICAL CHEMISTRY C | 2014年 / 118卷 / 14期

基金：

中国国家自然科学基金;

关键词：

MECHANICAL-PROPERTIES; COPPER NANOWIRES; ENERGY-STORAGE;

D O I：

10.1021/jp410805q

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Molecular dynamics simulation has been performed to study melting behavior of aluminum nanowires (NWs) encapsulated in armchair single-walled carbon nanotubes (SWCNTs). Results show that intriguing phenomena may appear when the diameters of the inner NWs exceed a threshold value that melting occurs first at the inner layers, followed by the diffusion of the inner atoms toward the surface layers. Two melting temperatures can be obtained while the first one is even lower than that of the free-standing one in some cases and the second one is slightly higher than the bulk. The lengths of the tubes also have a great effect on the melting behavior of the inner NWs. This abnormal melting behavior is might due to the van der Waals potential well in SWCNTs.

引用

收藏

页码：7622 / 7629

页数：8

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