Growth mechanism for carbon nanotubes in a plasma evaporation process

Takayuki Watanabe, Takahiro Notoya, Takamasa Ishigaki, Hiroyuki Kuwano, Hideki Tanaka, Yusuke Moriyoshi

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)


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, LaB6 had poor activity. These metal combinations presented synergy effect for the CNT formation. The combinations of Ni-Co, Ni-Fe, and Ni-LaB6 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.

Original languageEnglish
Pages (from-to)263-267
Number of pages5
JournalThin Solid Films
Publication statusPublished - May 26 2006
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Materials Chemistry


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