首页   按字顺浏览 期刊浏览 卷期浏览 Alkoxide‐Derived Titania Particles: Use of Electrolytes to Control Size and Agglomerati...
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

 

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