Synthesis and atomic characterization of a Ti2O3 Nanosheet

Megumi Ohwada, Koji Kimoto, Kazutomo Suenaga, Yuta Sato, Yasuo Ebina, Takayoshi Sasaki

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24 Citations (Scopus)


Titanium oxide nanosheets have been attracting much attention owing to their photocatalytic property. Here, we synthesized a Ti2O 3 nanosheet by the reduction of a titania nanosheet (Ti 0.87O2) that was one or two atoms in thickness. The atomic structure of the Ti2O3 nanosheet was quantitatively revealed by electron diffraction analysis, electron energy-loss spectroscopy, and high-resolution transmission electron microscopy (TEM). A titania nanosheet (Ti0.87O2) consisting of edge-shared TiO6 octahedra was transformed to a Ti2O3 nanosheet consisting of face-shared octahedra by electron beam irradiation. This represents a stable crystal phase of titania nanosheets like the Magneli phase in oxygen-deficient environments. The atomic arrangement of the Ti2O3 nanosheet was directly observed by newly developed aberration-corrected TEM.

Original languageEnglish
Pages (from-to)1820-1823
Number of pages4
JournalJournal of Physical Chemistry Letters
Issue number14
Publication statusPublished - 2011 Jul 21
Externally publishedYes

ASJC Scopus subject areas

  • Materials Science(all)
  • Physical and Theoretical Chemistry


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