Alkoxide‐Derived Titania Particles: Use of Electrolytes to Control Size and Agglomeration Levels
作者:
Jee Loon Look,
Charles F. Zukoski,
期刊:
Journal of the American Ceramic Society
(WILEY Available online 1992)
卷期:
Volume 75,
issue 6
页码: 1587-1595
ISSN:0002-7820
年代: 1992
DOI:10.1111/j.1151-2916.1992.tb04230.x
出版商: Blackwell Publishing Ltd
关键词: titania;alkoxide;particle size distribution;electrolytes;agglomeration
数据来源: WILEY
摘要:
Methods of controlling the size and morphology of particles precipitated from the hydrolysis and condensation of tetraethyl orthotitanate (TEOT) in aqueous ethanol solutions through the addition of electrolytes are described. The precipitates display great sensitivity to agitation where, above a critical shear rate, agglomerated morphologies are observed. For reactions carried out at shear rates less than the critical value, narrow size distribution, spherical titania particles are formed under conditions where the particles have electrophoretic mobilities greater than 0.2 × 10−8m2· V−1· s−1for 0.05M<[TEOT]<0.2Mand 0.15M
点击下载:
PDF
(1082KB)
返 回