Journal of Powder Materials (한국분말재료학회지)

The Korean Powder Metallurgy & Materials Institute (한국분말재료학회 (*구 분말야금학회))
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Synthesis of Carbon Nanotubes by Chemical Method at Warm Temperatures

탄소나노튜브의 중저온에서의 화학적 합성

  • Ahn, Jung-Ho (Andong National University, Dept. of Materials Engineering) ;
  • Lee, Sang-Hyun (Andong National University, Dept. of Materials Engineering) ;
  • Kim, Yong-Jin (Korea institute of Machinery and Materials, Center for Nanopowder Research) ;
  • Chung, Byung-Sik (Ajou University, Dept. of Materials Engineering)
  • 안중호 (안동대학교 신소재공학부) ;
  • 이상현 (안동대학교 신소재공학부) ;
  • 김용진 (한국기계연구원 분말재료연구센터) ;
  • 정형식 (아주대학교 재료공학과)
  • Published : 2006.10.28
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Abstract

Amorphous carbon nanotubes were synthesized by a reaction of benzene, ferrocene and Na mixture in a small autoclave at temperatures as low as $400^{\circ}C$. The resulting carbon nanotubes were short and straight, but their inner hole was filled with residual products. The addition of quartz to the reacting mixture considerably promoted the formation of carbon nanotubes. A careful examination of powder structure suggested that the nanotubes in this process were mainly formed by surface diffusion of carbon atoms at the surface of solid catalytic particles, not by VLS(vapor-liquid-solid) mechanism.

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