Abstract
Anatase and rutile Ti 1-xFe xO 2 nanocrystals with x = 0. 0 - 0. 05 were synthesized selectively in an aqueous solution. X-ray diffraction with refinements showed that TiO 2 crystals calcined at 500 and 800 °C were pure anatase and rutile phases, respectively. However, TiO 2 calcined at 550 ≤ T ≤ 600 °C showed a mixture of anatase and rutile phases. Ti 1-xFe xO 2 nanoparticles calcined at 500 °C had a high-quality anatase structure with no extra phases while Ti 1-xFe xO 2 calcined at 800 °C showed mainly a rutile structure. More disorder was observed in anatase than rutile Ti 1-xFe xO 2 nanoparticles. The results suggest that rutile Ti 1-xFe xO 2 nanoparticles are more stable than anatase Ti 1-xFe xO 2 nanoparticles. No change was observed from anatase or rutile TiO 2 nanoparticles when annealed at 900 °C, suggesting that both anatase and rutile TiO 2 nanoparticles are quite stable, once TiO 2 is crystallized.
| Original language | English |
|---|---|
| Pages (from-to) | 222-226 |
| Number of pages | 5 |
| Journal | Journal of the Korean Physical Society |
| Volume | 61 |
| Issue number | 2 |
| DOIs | |
| State | Published - 2012 |
Keywords
- DMS
- Solution Synthesis
- Spintronics
- Structure
- TiFeO
- TiO
- XRD
Quacquarelli Symonds(QS) Subject Topics
- Physics & Astronomy
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