SYNTHESIS OF METAL OXIDE PARTICLES FROM AQUEOUS MEDIA: THE HOMOGENEOUS ALKALIN1ZAT1ON METHOD
作者:
GaloJ. de A. A. Soler-Iltia,
Matias Jobbagy,
RobertoJ. Candal,
AlbertoE. Regazzoni,
MiguelA. Blesa,
期刊:
Journal of Dispersion Science and Technology
(Taylor Available online 1998)
卷期:
Volume 19,
issue 2-3
页码: 207-228
ISSN:0193-2691
年代: 1998
DOI:10.1080/01932699808913172
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
An analysis of the urea method as a way to synthesize uniform colloidal particles is presented. Various selected cases of precipitation and coprecipitation are reviewed to illustrate the inherent complexities of the method. The importance of the kinetics of urea hydrolysis is recognized. The concept of trajectory is used to rationalized the evolution of the systems upon aging. The influence of thermodynamic and kinetic factors in the definition of the nature of the precipitating solid phases is analyzed; the overriding role of the latter is stressed. The factors that influence particle morphology are also addressed.
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