Carbonate powder mixing calcination method for low-temperature synthesis of perovskite-type SmFeO₃ fine powder

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  • TAKASE Satoko
    Department of Applied Chemistry, Graduate School of Engineering, Kyushu Institute of Technology
  • SUZUKI Soichiro
    Department of Applied Chemistry, Graduate School of Engineering, Kyushu Institute of Technology
  • SHIMIZU Youichi
    Department of Applied Chemistry, Graduate School of Engineering, Kyushu Institute of Technology

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  • Carbonate powder mixing calcination method for low-temperature synthesis of perovskite-type SmFeO<sub>3</sub> fine powder

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Perovskite-type SmFeO3 fine powder was synthesized by the polymer precursor method using carbonate powder as an anti-sintering agent. SmFeO3 particles synthesized at 550°C were smaller than 100 nm and had a specific surface are of 36 m2/g. Also, the addition of carbonate in the calcinations process enabled the synthesis temperature for crystal formation of SmFeO3 to be reduced by 100°C. Results of thermal analysis suggested that carbonate stimulates a combustion reaction required for the formation of SmFeO3.

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