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Kheamrutai Thamaphat, Weeranut Kaewwiset, Pichet Limsuwan. Application of ESR Technique to Distinguish the Phase and Size of TiO2 Powders[J]. Journal of Electronic Science and Technology, 2010, 8(1): 31-34. DOI: 10.3969/j.issn.1674-862X.2010.01.006
Citation: Kheamrutai Thamaphat, Weeranut Kaewwiset, Pichet Limsuwan. Application of ESR Technique to Distinguish the Phase and Size of TiO2 Powders[J]. Journal of Electronic Science and Technology, 2010, 8(1): 31-34. DOI: 10.3969/j.issn.1674-862X.2010.01.006
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Application of ESR Technique to Distinguish the Phase and Size of TiO2 Powders

doi: 10.3969/j.issn.1674-862X.2010.01.006

  • Department of Physics,Faculty of Science,King Mongkut's University of Technology Thonburi,Bangmod,Bangkok 10140,Thailand

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  • Author Bio:

    Kheamrutai Thamaphat research interests include ESR spectroscopy, biophysics, and physics education, s903607@yahoo.com

  • Rev Recd Date: 2009-12-28
  • Publish Date: 2010-03-24
    Abstract
  • The commercial TiO2 nanopowder and micropowder of anatase phase and rutile phase have been characterized by X-ray diffraction (XRD) and electron spin resonance (ESR) spectroscopy. XRD patterns and ESR spectra of nano-TiO2 in rutile and anatase phases exhibit broad peaks whereas both phases of micro-TiO2 demonstrate very sharp peaks. Furthermore, the anatase phase of both particle sizes provide ESR peak at a magnetic field around 3568.25 G. On the other hand, this peak is not established in the rutile phase of both particle sizes.
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