The characteristics of nano-sized manganese oxide particles prepared by spray pyrolysis

Seo Hee Ju, Do Youp Kim, Hye Young Koo, Seung Kwon Hong, Eun Byul Jo, Yun Chan Kang

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

Nano-sized Mn2O3 particles with regular morphologies were prepared using spray pyrolysis. The spherical, micron-sized precursor particles obtained from a spray solution with citric acid and ethylene glycol turned into nano-sized Mn2O3 particles after post-treatment. The particles prepared from a carrier gas with a high flow rate had fine sizes and regular morphologies after post-treatment. The mean sizes of the Mn2O3 particles obtained at the post-treatment temperatures of 800 and 900 °C were 90 and 250 nm, respectively. On the other hand, the Mn2O3 particles prepared from the spray solution without organic additives had irregular morphologies and broad size distributions. The particles prepared from the spray solution with citric acid and ethylene glycol had crystal Mn2O3 structures at the post-treatment temperatures of 600 and 1000 °C.

Original languageEnglish
Pages (from-to)411-415
Number of pages5
JournalJournal of Alloys and Compounds
Volume425
Issue number1-2
DOIs
Publication statusPublished - 2006 Nov 30
Externally publishedYes

Keywords

  • Chemical synthesis
  • Gas-solid reaction
  • Nanostructures

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

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