EXTRUSION OF SINGLE-WALL CARBON NANOTUBES VIA FORMATION OF SMALL PARTICLES CONDENSED NEAR AN ARC EVAPORATION SOURCE

被引：83

作者：

SAITO, Y ^{[1
]}

OKUDA, M ^{[1
]}

TOMITA, M ^{[1
]}

HAYASHI, T ^{[1
]}

机构：

[1] NIPPON TELEGRAPH & TEL PUBL CORP, INTERDISCIPLINARY LABS, MUSASHINO, TOKYO 180, JAPAN

来源：

CHEMICAL PHYSICS LETTERS | 1995年 / 236卷 / 4-5期

关键词：

D O I：

10.1016/0009-2614(95)00250-8

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：

Single-wall (SW) tubes were produced by co-evaporation of carbon and lanthanum in helium gas and examined by transmission electron microscopy (TEM). TEM samples were collected directly from a space near the are evaporation source during evaporation. SW tubes growing radially from compound particles were observed 4 cm above the source, but not 2 cm. The 'sea urchin'-like morphology of these tubes were similar to those observed for soot deposited on the inner walls of the reaction chamber, suggesting that soot particles were formed first in the gas phase and SW tubes grew from them before deposition on the chamber wall. The temperature distribution and flow velocity of convection around the source are used for discussion of the growth mechanism of the SW tubes.

引用

页码：419 / 426

页数：8

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