Enhanced anatase-to-rutile phase transformation without exaggerated particle growth in nanostructured titania–tin oxide composites

2007 ◽  
Vol 57 (8) ◽  
pp. 771-774 ◽  
Author(s):  
Krishnankutty-Nair P. Kumar ◽  
Derek J. Fray ◽  
Jalajakumari Nair ◽  
Fujio Mizukami ◽  
Tatsuya Okubo
Keyword(s):  
Phase Transformation ◽  
Tin Oxide ◽  
Particle Growth ◽  
Rutile Phase ◽  
Oxide Composites ◽  
Nanostructured Titania

Size-Dependent Anatase to Rutile Phase Transformation and Particle Growth

2012 ◽  
Vol 25 (8) ◽  
pp. 1408-1415 ◽  
Author(s):  
Kairat Sabyrov ◽  
Nathan D. Burrows ◽  
R. Lee Penn
Keyword(s):  
Phase Transformation ◽  
Particle Growth ◽  
Rutile Phase ◽  
Size Dependent

Study on the Anatase to Rutile Phase Transformation and Controlled Synthesis of Rutile Nanocrystals with the Assistance of Ionic Liquid

Langmuir ◽  
2010 ◽  
Vol 26 (12) ◽  
pp. 10294-10302 ◽  
Author(s):  
Kunlun Ding ◽  
Zhenjiang Miao ◽  
Baoji Hu ◽  
Guimin An ◽  
Zhenyu Sun ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Phase Transformation ◽  
Rutile Phase ◽  
Controlled Synthesis

Aluminate Green Phosphor with Small Particle Size Used for PDP via Co-Precipitation Method

2011 ◽  
Vol 295-297 ◽  
pp. 890-895
Author(s):  
Yan Dong ◽  
Yang Zhou ◽  
Xue Lin Han ◽  
Wei Jie Gu
Keyword(s):  
Particle Size ◽  
Phase Transformation ◽  
Small Particle ◽  
High Efficiency ◽  
Particle Growth ◽  
Solid State Reaction Method ◽  
Precipitation Method ◽  
Small Particle Size ◽  
Green Phosphor ◽  
Co Precipitation

Mg doped BaAl12O19:Mn2+ phosphor is one of the most efficient green phosphors for PDP. It is difficult to prepare the phosphor both have small particle size (< 3μm) and high luminescence. In the present work, a BaAl12O19:Mn2+ phosphor with small particle size was synthesized by the chemical co-precipitation method. Phase transformation and particle growth process during calcining process were investigated. The nucleation process was also discussed. The results show that, the phase transformation is complicated, the transition phases include BaCO3, γ-Al2O3, BaF2, BaAl2O4 and two phases contain Mn; The BaAl12O19 phase is formed from the reaction between BaAl2O4 phase and γ-Al2O3 phase, no a-Al2O3 phase appears during the entire process; The formation temperature of pure BaAl12O19 phase is 1200°C, which is lower than that in the high-temperature solid state reaction method. High efficiency BaAl12O19:Mn2+ phosphor with small particle size (< 2μm) and hexagonal flaky shape can be prepared by this method.

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