Room-temperature synthesis and characterisation of ion-induced iron-carbon nanocomposite fibres

Zhipeng Wang, Kohei Yamaguchi, Daiki Takeuchi, Yasuhiko Hayashi, Masaki Tanemura

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)

Abstract

Graphite plates were Ar+ ion-irradiated with and without a simultaneous Fe supply at room temperature. The surfaces ion-irradiated without an Fe supply were covered with densely distributed conical projections with a carbon nanofibre (CNF) on the top. The CNFs thus grown were 20-50 nm in diameter and 0.3-2 ?m in length. By contrast, the graphite surfaces ion-bombarded with a simultaneous Fe supply were characterised by various kinds of carbon composites, such as conical protrusions with and without a single carbon nanocomposite fibre (CNCF) on the top, depending on the Fe supply rates. As confirmed by transmission electron microscope (TEM),the CNCFs thus grown were amorphous-like and possessed no hollow structure. Energy dispersive X-ray analysis disclosed that CNCFs consisted of carbon and iron, and quite fine Fe crystallites were dispersed over the CNCF.Since various metals can be incorporated into the room-temperature grown carbon nanofibres, this ion-irradiation method is believed to be promising as a new approach to synthesise one-dimensional (1-D) nanomaterials at low temperatures.

Original languageEnglish
Pages (from-to)753-761
Number of pages9
JournalInternational Journal of Nanotechnology
Volume6
Issue number7-8
DOIs
Publication statusPublished - May 2009
Externally publishedYes

Keywords

  • Carbon
  • Field emission
  • Graphite
  • Ion beam
  • Iron
  • Nanocomposite fibres
  • Room temperature.

ASJC Scopus subject areas

  • Bioengineering
  • Condensed Matter Physics
  • Electrical and Electronic Engineering
  • Materials Chemistry

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