Synthesis of carbon-encapsulated nanowires using polycyclic aromatic hydrocarbon precursors

被引：55

作者：

Dai, JY ^{[1
]}

Lauerhaas, JM ^{[1
]}

Setlur, AA ^{[1
]}

Chang, RPH ^{[1
]}

机构：

[1] NORTHWESTERN UNIV,MAT RES CTR,EVANSTON,IL 60208

来源：

CHEMICAL PHYSICS LETTERS | 1996年 / 258卷 / 5-6期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/0009-2614(96)00709-9

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：

A method using polycyclic aromatic hydrocarbon (PAH) precursors for synthesizing carbon nanotubes filled with pure copper or germanium is reported. A model is proposed where the interaction of small copper or germanium clusters with PAH molecules is shown to form carbon-encapsulated nanowires. The validity of this model is demonstrated by showing that filled nanotubes are formed in a hydrogen are which produces PAH molecules when graphite electrodes are used. Alternatively, we have also used pyrene (C16H10), a PAH molecule, to grow encapsulated nanowires directly. No filled nanotubes are found in a helium are which does not generate PAHs.

引用

页码：547 / 553

页数：7

共 27 条

[1] CAPILLARITY-INDUCED FILLING OF CARBON NANOTUBES [J].