Large-scale synthesis of single-walled carbon nanohorns by submerged arc

H. Wang, Manish Chhowalla, N. Sano, S. Jia, G. A J Amaratunga

Research output: Contribution to journalArticle

111 Citations (Scopus)

Abstract

We report on the synthesis of single-walled carbon nanohorns (SWNHs) by arc discharge between two graphite electrodes submerged in liquid nitrogen. The product in its powder form was found to consist of spherical aggregates with sizes in the range of 50-100 nm. The nanohorns are characterized by transmission electron microscopy (TEM), Raman and electron energy loss spectroscopies and surface area measurements. TEM observations revealed that the internal structure of the aggregates could be described as a mixture of 'dahlia-like' and 'bud-like'. A structural transition above 300°C was inferred from the Raman data. Here we show that a simple technique that does not require relatively expensive laser and vacuum equipment provides an economical alternative for the synthesis of SWNHs.

Original languageEnglish
Pages (from-to)546-550
Number of pages5
JournalNanotechnology
Volume15
Issue number5
DOIs
Publication statusPublished - May 2004

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Nanohorns
Carbon
arcs
transmission electron microscopy
carbon
arc discharges
synthesis
liquid nitrogen
Transmission electron microscopy
Graphite electrodes
graphite
energy dissipation
Electron energy loss spectroscopy
Liquid nitrogen
electron energy
Powders
vacuum
electrodes
products
Vacuum

ASJC Scopus subject areas

  • Engineering (miscellaneous)
  • Materials Science(all)
  • Physics and Astronomy (miscellaneous)

Cite this

Large-scale synthesis of single-walled carbon nanohorns by submerged arc. / Wang, H.; Chhowalla, Manish; Sano, N.; Jia, S.; Amaratunga, G. A J.

In: Nanotechnology, Vol. 15, No. 5, 05.2004, p. 546-550.

Research output: Contribution to journalArticle

Wang, H. ; Chhowalla, Manish ; Sano, N. ; Jia, S. ; Amaratunga, G. A J. / Large-scale synthesis of single-walled carbon nanohorns by submerged arc. In: Nanotechnology. 2004 ; Vol. 15, No. 5. pp. 546-550.
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