Membrane Journal (멤브레인)

The Membrane Society of Korea (한국막학회)
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Preparation and Oxygen Permeability of $PrBa_{0.9}Sr_{0.1}Co_2O_{5+{\delta}}$ Ceramic Membrane

$PrBa_{0.9}Sr_{0.1}Co_2O_{5+{\delta}}$ 세라믹 분리막의 제조 및 산소투과 특성

  • Pyo, Dae-Woong (Greenhouse Gas Research Center, Climate Change Technology Research Division, Korea Institute of Energy Research) ;
  • Kim, Jong-Pyo (Greenhouse Gas Research Center, Climate Change Technology Research Division, Korea Institute of Energy Research) ;
  • Son, Su-Hwan (Department of Chemical Engineering, Chungnam National University) ;
  • Park, Jung-Hoon (Greenhouse Gas Research Center, Climate Change Technology Research Division, Korea Institute of Energy Research)
  • 표대웅 (한국에너지기술연구원 온실가스연구단) ;
  • 김종표 (한국에너지기술연구원 온실가스연구단) ;
  • 손수환 (충남대학교 화학공학과) ;
  • 박정훈 (한국에너지기술연구원 온실가스연구단)
  • Received : 2011.09.04
  • Accepted : 2011.10.04
  • Published : 2011.12.20
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Abstract

$PrBa_{0.9}Sr_{0.1}Co_2O_{5+{\delta}}$ oxide was synthesized by soild state reaction method. Dense ceramic membrane was prepared using as-prepared powder by pressing and sintering at $1250^{\circ}C$. XRD result of membrane showed double perovskite structure. Leakage and oxygen permeation test were conducted on the membrane sealed by pyrex ring as a sealing material. Oxygen permeation was measured in the temperature range from 850 to $950^{\circ}C$. The oxygen flux of $PrBa_{0.9}Sr_{0.1}Co_2O_{5+{\delta}}$ membrane was increased with the temperature from 0.15 to $0.32mL/cm^2{\cdot}min$.

$PrBa_{0.9}Sr_{0.1}Co_2O_{5+{\delta}}$ 조성의 산화물을 고상반응법을 이용하여 합성하였다. 합성된 분말은 압축 성형 후 $1,250^{\circ}C$에서 소결하여 치밀한 세라믹 분리막을 제조하였다. 제조된 $PrBa_{0.9}Sr_{0.1}Co_2O_{5+{\delta}}$분리막은 XRD분석 결과 이중 페롭스카이트 (double perovskite)구조를 보였다. 밀봉재료로는 pyrex ring을 사용하여 가스누출 실험 및 산소투과 분석을 하였다. 산소투과량 분석은 $850{\sim}950^{\circ}C$범위에서 측정되었다. 산소투과실험 결과, 투과량은 온도증가에 따라 0.15에서 $0.32mL/cm^2{\cdot}min$로 증가하였다.

Keywords

References

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