한국재료학회지 (Korean Journal of Materials Research)

  • 제14권9호
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  • Pages.664-669
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  • 2004
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  • 1225-0562(pISSN)
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  • 2287-7258(eISSN)
한국재료학회 (Materials Research Society of Korea)
권호 표지
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알루미나 형틀을 이용한 서로 다른 직경을 갖는 모양을 가진 탄소나노튜브의 합성

Synthesis of Stepped Carbon Nanotubes in Anodic Aluminum Oxide Templates

  • 임완순 (충남대학교 재료공학과 나노재료응용실험실) ;
  • 조유석 (충남대학교 재료공학과 나노재료응용실험실) ;
  • 최규석 (충남대학교 재료공학과 나노재료응용실험실) ;
  • 김도진 (충남대학교 재료공학과 나노재료응용실험실)
  • Im Wan-soon (Department of Materials Science & Engineering, Chungnam National University) ;
  • Cho You-suk (Department of Materials Science & Engineering, Chungnam National University) ;
  • Choi Gu seok (Department of Materials Science & Engineering, Chungnam National University) ;
  • Kim Dojin (Department of Materials Science & Engineering, Chungnam National University)
  • 발행 : 2004.09.01
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초록

Anodic aluminum oxide (AAO) with pores of various diameter, density, and thickness values was obtained through control of the anodization parameters including voltage, temperature, pore widening time, anodization time, etc. The pore diameter was controlled by a pore widening in an etchant, and alumina templates having stepped nano-channels were fabricated by repetition of anodization and pore widening processes. Stepped carbon nanotubes (CNTs) were then grown on the stepped AAO templates by pyrolysis of acetylene without using the catalyst. High-resolution transmission electron microscopy images revealed that CNTs have a multi-wall structure made of graphite flakes of several nm sizes. The current-voltage characteristic of the sloped and linear CNTs were also examined.

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