Growth mechanism for carbon nanotubes in a plasma evaporation process

Carbon nanotubes (CNTs) were synthesized through raw-material evaporation and condensation in RF thermal plasmas to investigate co-condensation process of the vapor mixture of carbon and metals. Addition of 10 wt.%-Ni was the most effective for the CNT synthesis, while Co, Fe, Mo, LaB 6 had poor act...

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Published inThin solid films Vol. 506; no. Complete; pp. 263 - 267
Main Authors Watanabe, Takayuki, Notoya, Takahiro, Ishigaki, Takamasa, Kuwano, Hiroyuki, Tanaka, Hideki, Moriyoshi, Yusuke
Format Journal Article
LanguageEnglish
Published Elsevier B.V 26.05.2006
Subjects
Carbon nanotube
Homogenous nucleation
Induction plasma
Plasma evaporation
Carbon nanotube
Homogenous nucleation
Plasma evaporation
Induction plasma
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Summary:Carbon nanotubes (CNTs) were synthesized through raw-material evaporation and condensation in RF thermal plasmas to investigate co-condensation process of the vapor mixture of carbon and metals. Addition of 10 wt.%-Ni was the most effective for the CNT synthesis, while Co, Fe, Mo, LaB 6 had poor activity. These metal combinations presented synergy effect for the CNT formation. The combinations of Ni–Co, Ni–Fe, and Ni–LaB 6 provided more effective activity in the CNT synthesis. Furthermore, the CNT growth mechanism from the vapor mixture of carbon and metals was discussed. Heterogeneous condensation model and carbon–metal molten model were selected as the CNT growth model.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0040-6090
1879-2731
DOI:10.1016/j.tsf.2005.08.289