Microstructural evolution of titania nanocrystallites by a hydrothermal treatment : A HRTEM study
Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review
Author(s)
Detail(s)
Original language | English |
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Pages (from-to) | 443-446 |
Journal / Publication | Journal of the American Ceramic Society |
Volume | 88 |
Issue number | 2 |
Publication status | Published - 2005 |
Externally published | Yes |
Link(s)
Abstract
Nanocrystalline anatase titanium dioxide films were formed by a hydrothermal treatment at temperatures below 100°C. The microstructural evolution of the crystallites was monitored by high-resolution transmission electron microscopy (HRTEM). HRTEM analysis of the as-grown film revealed the presence of nanocrystalline brookite TiO 2 within an amorphous matrix. After 90 min of the hydrothermal treatment, the TiO 2 nanoparticles remained of brookite form and a small increase in grain size was observed. Intergranular amorphous TiO 2 between the nanoparticles was observed in both as-grown and 90-min-treated films. However, after further 90 min of the treatment, TiO 2 nanoparticles were transformed into anatase phase with a rapid growth in grain size.
Citation Format(s)
Microstructural evolution of titania nanocrystallites by a hydrothermal treatment: A HRTEM study. / Daoud, Walid A.; Xin, John H.; Pang, G. K H.
In: Journal of the American Ceramic Society, Vol. 88, No. 2, 2005, p. 443-446.
In: Journal of the American Ceramic Society, Vol. 88, No. 2, 2005, p. 443-446.
Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review