Structure of helical Nb2O5 nanotubes studied by transmission electron microscopy

Kunio Yubuta, Katsuya Teshima, Shuji Oishi

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


The structure of Nb2O5 nanotubes was studied by electron diffraction and high-resolution transmission electron microscopy (HRTEM). The nanotubes were prepared from highly crystalline-layered K4Nb6O17 crystals grown from a KCl flux using the intercalating and exfoliating techniques. Nanotubes have a length of about 200nm and a diameter of 20 nm. The observed electron diffraction patterns revealed that the nanotubes have a helical structure with the basal plane of (010) and the tube-axis parallel to the [201] direction. Their basal plane corresponds to the (010) plane of the layered K4Nb6O17 crystals. The helical lattice plane was directly observed by a Fourier filtered HRTEM image.

Original languageEnglish
Pages (from-to)957-960
Number of pages4
JournalSurface and Interface Analysis
Issue number10-11
Publication statusPublished - Oct 1 2014
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • General Chemistry
  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Materials Chemistry


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