Fine size cobalt oxide powders prepared by spray pyrolysis using two types of spray generators

Seo Hee Ju, Seung Kwon Hong, Hee Chan Jang, Yun Chan Kang

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Abstract

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.

Original languageEnglish
Pages (from-to)507-510
Number of pages4
JournalJournal of the Ceramic Society of Japan
Volume115
Issue number1344
DOIs
Publication statusPublished - 2007 Jan 1
Externally publishedYes

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Keywords

  • Black matrix
  • Cobalt oxide
  • Spray pyrolysis
  • Ultrasonic

ASJC Scopus subject areas

  • Ceramics and Composites
  • Chemistry(all)
  • Condensed Matter Physics
  • Materials Chemistry

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