Growth and microstructure of catalytically produced coiled carbon nanotubes

被引：71

作者：

Hernadi, K

Thiên-Nga, L

Forró, L

机构：

[1] Ecole Polytech Fed Lausanne, DP, CH-1015 Lausanne, Switzerland

[2] Univ Szeged, Appl & Environm Chem Dept, H-6720 Szeged, Hungary

来源：

JOURNAL OF PHYSICAL CHEMISTRY B | 2001年 / 105卷 / 50期

关键词：

D O I：

10.1021/jp011208p

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：

We investigated the influence of catalyst preparation on the growth of coil-shaped nanotubes by varying the pH of the solution during catalyst impregnation, to elucidate their formation process, The spirals were observed by transmission electron microscopy, and we determined the dimensions of these coils for a large number of them, to compare them to straight nanotubes, and also to establish correlations between these dimensions and catalyst preparation. We also looked for the nature of curling at the nanometer scale. A growth mechanism for these spirals is finally suggested.

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页码：12464 / 12468

页数：5

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