Study on the Phase Transformation Behavior of Nanosized Amorphous TiO2

J Mater Sci Technol ›› 2003, Vol. 19 ›› Issue (05): 463-466.

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Study on the Phase Transformation Behavior of Nanosized Amorphous TiO2

Huaqing XIE, Tonggeng XI, Qinghong ZHANG, Qingren WU

Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China

Received:1900-01-01 Revised:1900-01-01 Online:2003-09-28 Published:2009-10-10
Contact: Huaqing XIE

Abstract

Abstract: Nanosized amorphous TiO2 powders with a specific surface area of 501 m2•g-1 were prepared by hydrolysis. After calcined at 400 °C for 2 h, the prepared amorphous TiO2 powders were fully transformed into anatase crystallites with a specific surface area of 141 m2•g-1. Differential scanning calorimetric (DSC) experiments were performed on the samples of nanosized amorphous TiO2 mixed with microsized anatase, nanosized anatase, or nanosized α-Al2O3 respectively. Effects of sample packing, anatase addition, or α-Al2O3 addition on the crystallization behavior of nanosized amorphous TiO2 were analyzed.

Key words: Crystallization behavior, DSC, Nanosized TiO2, Seeding nucleation

Huaqing XIE, Tonggeng XI, Qinghong ZHANG, Qingren WU. Study on the Phase Transformation Behavior of Nanosized Amorphous TiO2[J]. J Mater Sci Technol, 2003, 19(05): 463-466.

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Study on the Phase Transformation Behavior of Nanosized Amorphous TiO2

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