Synthesis of carbon nanotubes from in situ generated cobalt nanoparticles and carbon monoxide

被引：44
|
作者：
Rana, RK [1 ]
Koltypin, Y [1 ]
Gedanken, A [1 ]
机构：
[1] Bar Ilan Univ, Dept Chem, IL-52900 Ramat Gan, Israel
来源：
CHEMICAL PHYSICS LETTERS | 2001年 / 344卷 / 3-4期
关键词：
D O I：
10.1016/S0009-2614(01)00776-X
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：
Multi-walled carbon nanotubes were synthesized via a catalytic process of CO disproportionation over the in situ formed cobalt nanoparticles on an MgO support. For this purpose Co(CO)(3)NO was used as the source of both cobalt and carbon monoxide. Well-dispersed cobalt nanoparticles supported on MgO gave rise to a narrow size distribution for the generated nanotubes. The carbonaceous materials were separated from the product by a simple acid-treatment method and their structural and morphological characterizations were performed by XRD and TEM. Thermogravimetric analysis of the HO-treated sample revealed a weight content of about 68% nanotubes and nanoparticles. (C) 2001 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：256 / 262
页数：7
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