Synthesis of pure, crystalline (Ba,Sr)TiO3 nanosized powders in radio frequency induction thermal plasma

Norio Kobayashi, Takamasa Ishigaki, Takayuki Watanabe, Ji Guang Li

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

Barium strontium titanate ((Ba,Sr)TiO3) nanosized powders were synthesized via spray pyrolysis of a liquid precursor mist in Ar-O2 radio frequency induction thermal plasma. To adjust the cation stoichiometry of the complex oxide, liquid precursors were prepared by mixing titanium butoxide (Ti(OBu)4) stabilized with diethanolamine and aqueous solutions of barium nitrate (Ba(NO3)2) and strontium nitrate (Sr(NO3)2) stabilized with citric acid. The molar ratios of titanium, barium, and strontium ions (Ba/(Ba+Sr) and (Ba+Sr)/Ti ratios) in the liquid precursor were varied. Pure, high-crystalline (Ba,Sr)TiO3 (Ba/(Ba+Sr)=0.0-1.0) powders of ∼45 nm in size were synthesized in this one-step process.

Original languageEnglish
Pages (from-to)1125-1135
Number of pages11
JournalInternational Journal of Applied Ceramic Technology
Volume8
Issue number5
DOIs
Publication statusPublished - Sep 1 2011
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Condensed Matter Physics
  • Marketing
  • Materials Chemistry

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