Formation of MoO2 nanotube with rectangular cross sections

Hiroyuki Handay, Toshimi Abe, Maki Suemitsu

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)


MoO2 nanotube with rectangular cross sections can be prepared on Mo substrates by using an O2-C2H2 combustion-flame method [Jpn. J. Appl. Phys. 44 (2005) L449]. We have investigated the growth behavior of the nanotube in detail by using scanning electron microscopy and energy dispersive x-ray microanalysis. The precursor of the growth is produced onsite at the Mo substrate, through reactions with oxygen radicals supplied from the combustion flame. The precursor is then transferred, in the flow of the combustion flame, to the backside of the substrate to form the rectangular nanotube. The growth is accompanied by oxidation, which is crucial in determining the shape of the nanostructure. A two-stage growth model, consisting of initial bulk-cluster growth and subsequent growth of nanotube, is proposed based on the observations.

Original languageEnglish
Pages (from-to)307-310
Number of pages4
Journale-Journal of Surface Science and Nanotechnology
Publication statusPublished - 2009 Apr 4


  • Energy dispersive X-ray microanalysis
  • M O nanotube with rectangular cross sections
  • O -CH combustion-flame method
  • Scanning electron microscopy

ASJC Scopus subject areas

  • Biotechnology
  • Bioengineering
  • Condensed Matter Physics
  • Mechanics of Materials
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films


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