標題: The effect of calcination temperature on the crystallinity of TiO2 nanopowders
作者: Chen, YF
Lee, CY
Yeng, MY
Chiu, HT
應用化學系
Department of Applied Chemistry
關鍵字: crystallinity;microstructure;nanomaterials;titanium oxide
公開日期: 1-Jan-2003
摘要: TiO2 nanopowders have been prepared using 0.1 M titanium tetraisopropoxide (TTIP) in varied pH aqueous solution containing TMC and NP-204 surfactants. Only the powder acquired from a solution of pH = 2 has a regular particle size distribution. Anatase phase powders are obtained by calcination in nitrogen in the 250-500degreesC temperature range. When calcined at 400degreesC, the diameter of the nanoparticles is approximately 10 nm with a specific surface area of 106.9 m(2)/g. As the calcination temperature is increased, the particle size increases. Rutile phase powders are formed at calcination temperatures above 600degreesC. (C) 2002 Elsevier Science B.V. All rights reserved.
URI: http://dx.doi.org/10.1016/S0022-0248(02)01938-3
http://hdl.handle.net/11536/28229
ISSN: 0022-0248
DOI: 10.1016/S0022-0248(02)01938-3
期刊: JOURNAL OF CRYSTAL GROWTH
Volume: 247
Issue: 3-4
起始頁: 363
結束頁: 370
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