Synthesis of Multiwalled Carbon Nanotubes at Temperatures below 300℃ by Hot-Filament Assisted Chemical Vapor Deposition

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  • Ishikawa Yutaka
    Department of Electrical and Electronics Engineering, Nippon Institute of Technology
  • Jinbo Hironobu
    Department of Electrical and Electronics Engineering, Nippon Institute of Technology

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タイトル別名
  • Synthesis of Multiwalled Carbon Nanotubes at Temperatures below 300.DEG.C. by Hot-Filament Assisted Chemical Vapor Deposition
  • Synthesis of Multiwalled Carbon Nanotubes at Temperatures below 300ドC by Hot Filament Assisted Chemical Vapor Deposition

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説明

Synthesis of multiwalled carbon nanotubes was attempted at low temperatures by chemical vapor deposition using a hot filament. Ethanol was used as a carbon source. As a catalyst, particles produced by scratching a cobalt plate with sandpaper were mixed with zeolite powder. We successfully synthesized multiwalled carbon nanotubes at 280°C. The diameter of the nanotubes was in the range of 8–20 nm. The reaction was carried out at atmospheric pressure, therefore we did not use a vacuum pump in the synthesis. We also did not use inflammable and explosive gas. Thus, we have succeeded in synthesizing multiwalled carbon nanotubes at low temperatures using very simple and low-risk equipment.

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