Evidence for an open-ended nanotube growth model in arc discharge

Since their discovery in 1991, carbon nanotubes have attracted more and more interest for their distinguished properties and promising future applications. They can now be produced in large quantities by several methods, but arc-discharge is still the most practical one for scientific purposes and y...

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Bibliographic Details
Published in:Carbon (New York) 2000, Vol.38 (3), p.480-483
Main Authors: Tang, D.S, Xie, S.S, Liu, W, Chang, B.H, Sun, L.F, Liu, Z.Q, Wan, G, Zhou, W.Y
Format: Article
Language:English
Subjects:
A. Carbon nanotubes
C. Scanning electron microscopy (SEM)
Cross-disciplinary physics: materials science
rheology
Exact sciences and technology
Materials science
Nanoscale materials and structures: fabrication and characterization
Physics
Transmission electron microscopy (TEM)
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Summary:Since their discovery in 1991, carbon nanotubes have attracted more and more interest for their distinguished properties and promising future applications. They can now be produced in large quantities by several methods, but arc-discharge is still the most practical one for scientific purposes and yields the most highly graphitized tubes, simply because the process has a very high temperature (about 4000 K). In order to improve the output and quality and understand the growth mechanism of carbon nanotubes in arc-discharge, much work has been done in this field. But there are still many details that need to be clarified in the arc discharge about how and why carbon nanotubes come into being. These include the growth morphology of carbon nanotubes and what is responsible for the coexistence of nanotubes and nanoparticles.
ISSN:0008-6223
1873-3891
DOI:10.1016/S0008-6223(99)00249-3