Fine Size Cobalt Oxide Powders Prepared by Spray Pyrolysis Using Two Types of Spray Generators

Spherical shape cobalt oxide powders with fine size were directly prepared by spray pyrolysis using a filter expansion aerosol generator (FEAG). These cobalt oxide powders were then compared with the powders prepared by ultrasonic spray pyrolysis. The cobalt oxide powders prepared using a FEAG are f...

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Bibliographic Details
Published in:Journal of the Ceramic Society of Japan 2007, Vol.115(1344), pp.507-510
Main Authors: JU, Seo Hee, HONG, Seung Kwon, JANG, Hee Chan, KANG, Yun Chan
Format: Article
Language:English
Subjects:
Aerosols
Black matrix
Ceramics
Cobalt oxide
Cobalt oxides
Generators
Size distribution
Spray pyrolysis
Sprayers
Sprays
Ultrasonic
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Summary:Spherical shape cobalt oxide powders with fine size were directly prepared by spray pyrolysis using a filter expansion aerosol generator (FEAG). These cobalt oxide powders were then compared with the powders prepared by ultrasonic spray pyrolysis. The cobalt oxide powders prepared using a FEAG are finer and have more narrow size distribution and filled morphologies than those prepared by ultrasonic spray pyrolysis. The mean sizes of the cobalt oxide powders prepared using a FEAG increased from 230 to 860 nm when the concentration of the spray solution was increased from 0.01 to 2 M.
ISSN:1882-0743
1348-6535
1348-6535
DOI:10.2109/jcersj2.115.507