One-Step Synthesis of Metal-Encapsulated Carbon Nanotubes by Pulsed Arc Discharge in Water

Metal-encapsulated carbon nanotubes (M@CNTs) have attracted considerable attention because of their numerous potential applications. However, there have been only a few reports on the encapsulation of CNTs with high boiling point metals. We investigated the encapsulation of CNTs with such metals by...

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Bibliographic Details
Published inE-journal of surface science and nanotechnology Vol. 10; pp. 414 - 416
Main Authors Takekoshi, Kentaro, Kizu, Takio, Aikawa, Shinya, Nishikawa, Eiichi
Format Journal Article
LanguageEnglish
Published The Japan Society of Vacuum and Surface Science 01.01.2012
Subjects
Carbon nanotubes
Catalysis
Pulsed arc discharge in water
Transmission electron microscopy (TEM)
X-ray scattering, diffraction, and reflection
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Summary:Metal-encapsulated carbon nanotubes (M@CNTs) have attracted considerable attention because of their numerous potential applications. However, there have been only a few reports on the encapsulation of CNTs with high boiling point metals. We investigated the encapsulation of CNTs with such metals by using a pulsed arc discharge method in water. When the melting points of the metals were higher than the sublimation temperature of carbon, the CNTs were encapsulated. In contrast, M@CNTs could not be synthesized with lower melting point metals. The reason for this difference is attributed to the eutectic temperature of the alloys that are generated during precipitation of the carbon atoms. [DOI: 10.1380/ejssnt.2012.414]
ISSN:1348-0391
1348-0391
DOI:10.1380/ejssnt.2012.414