Synthesis of Single-Crystal TiO 2 Nanowire Using Titanium Monoxide Powder by Thermal Evaporation

Z. G. Shang, Z. Q. Liu, P. J. Shang, J. K. Shang

Research output: Contribution to journalArticlepeer-review


TiO 2 nanowires were synthesized successfully in a large quantity by thermal evaporation using titanium monoxide powder as precursor. X-ray diffraction results showed that all the products were pure rutile phase of TiO 2. According to microstructural observations, the nanowires have two typical morphologies, a long straight type and a short tortuous type. The straight nanowires were obtained at a wide temperature range of 900-1050 °C, while the tortuous ones were formed below 900 °C. Transmission electron microscopy characterization revealed that both the straight and the tortuous nanowires are single-crystal rutile TiO 2. The preferential growth direction of the nanowires was determined as [110] orientation according to electron diffraction and high-resolution image analyses. The morphological change of TiO 2 nanowires was discussed by considering the different atomic diffusion rates of Ti atoms caused by the phase transformation in Ti substrate at around 900 °C.

Original languageEnglish (US)
Pages (from-to)385-390
Number of pages6
JournalJournal of Materials Science and Technology
Issue number5
StatePublished - May 2012
Externally publishedYes


  • Alloy nanowires
  • Crystal structure identification
  • Growth mechanism
  • Rutile-TiO
  • Thermal evaporation
  • Transmission electron microscopy (TEM) characterization

ASJC Scopus subject areas

  • Ceramics and Composites
  • Mechanics of Materials
  • Mechanical Engineering
  • Polymers and Plastics
  • Metals and Alloys
  • Materials Chemistry


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