Large scale synthesis of carbon nanotubes by plasma rotating arc discharge technique

Seung Jong Lee, Hong Koo Baik, Jae eun Yoo, Jong Hoon Han

Research output: Contribution to journalArticle

41 Citations (Scopus)

Abstract

The large-scale synthesis of carbon nanotubes is achieved by plasma rotating arc discharge. The graphite anode is rotated at a high velocity for the synthesis of carbon nanotubes. Conventional arc discharge is an unstable process because of the cathode spot phenomena, which induces an inhomogeneity of the electric field distribution and a discontinuity of the current flow. The rotation of the anode distributes the microdischarges uniformly and generates a stable plasma. The centrifugal force by the rotation generates the turbulence and accelerates carbon vapor perpendicular to the anode. It is not condensed at the cathode surface but collected on the graphite collector that was placed at the periphery of the plasma. The nanotube yield increases as the rotation speed of the anode increases and the collector becomes closer to the plasma. The reason for this is because two conditions are optimized. One is the high density of carbon vapor that is created by uniform and high temperature plasma for nucleation and the other is the sufficient temperature of collectors for nanotube growth. The plasma rotating electrode process is a continuous process of the stable discharge and it is expected to perform the mass production of high quality nanotubes.

Original languageEnglish
Pages (from-to)914-917
Number of pages4
JournalDiamond and Related Materials
Volume11
Issue number3-6
DOIs
Publication statusPublished - 2002 Mar 1

Fingerprint

rotating plasmas
Carbon Nanotubes
arc discharges
Carbon nanotubes
anodes
carbon nanotubes
accumulators
Plasmas
nanotubes
Anodes
synthesis
Nanotubes
Graphite
graphite
cathodes
vapors
centrifugal force
carbon
Cathodes
high temperature plasmas

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Chemistry(all)
  • Mechanical Engineering
  • Physics and Astronomy(all)
  • Materials Chemistry
  • Electrical and Electronic Engineering

Cite this

Jong Lee, Seung ; Koo Baik, Hong ; Yoo, Jae eun ; Hoon Han, Jong. / Large scale synthesis of carbon nanotubes by plasma rotating arc discharge technique. In: Diamond and Related Materials. 2002 ; Vol. 11, No. 3-6. pp. 914-917.
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Large scale synthesis of carbon nanotubes by plasma rotating arc discharge technique. / Jong Lee, Seung; Koo Baik, Hong; Yoo, Jae eun; Hoon Han, Jong.

In: Diamond and Related Materials, Vol. 11, No. 3-6, 01.03.2002, p. 914-917.

Research output: Contribution to journalArticle

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