Transactions of the Korean hydrogen and new energy society (한국수소및신에너지학회논문집)

The Korean Hydrogen and New Energy Society (한국수소및신에너지학회)
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Redox Stability and Electrochemical Performances of La0.6Sr0.4Fe1-xScxO3-δ for Solid Oxide Cells Interconnector

고체산화물전지 접속자용 La0.6Sr0.4Fe1-xScxO3-δ의 상 안정성 및 전기화학 성능

  • KWAK, MINJUN (University of Science and Technology) ;
  • CHOI, HYUN-JONG (SEnergy Materials Laboratory, Korea Institute of Energy Research) ;
  • KIM, TAE WOO (SEnergy Materials Laboratory, Korea Institute of Energy Research) ;
  • SEO, DOO-WON (SEnergy Materials Laboratory, Korea Institute of Energy Research) ;
  • WOO, SANG-KUK (SEnergy Materials Laboratory, Korea Institute of Energy Research) ;
  • KIM, SUN-DONG (SEnergy Materials Laboratory, Korea Institute of Energy Research)
  • Received : 2018.06.04
  • Accepted : 2018.06.30
  • Published : 2018.06.30
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Abstract

Sc-substituted $La_{0.6}Sr_{0.4}FeO_{3-{\delta}}$(LSFSc) has synthesized for ceramic interconnector of tubular solid oxide cells (SOCs). For improving the redox stability and electric conductivity of LSFSc, the compositions of Sc, pH value of mixed precursors, calcination temperature and times were optimizing. The electrochemical performances of $La_{0.6}Sr_{0.4}Fe_{1-x}Sc_xO_{3-{\delta}}$ powders were measured as depending on Sc composition. The electric conductivity and redox stability of $La_{0.6}Sr_{0.4}Fe_{1-x}Sc_xO_{3-{\delta}}$ was determined by Sc concentration. $La_{0.6}Sr_{0.4}Fe_{0.9}Sc_{0.1}O_{3-{\delta}}$ powders can be one of the stable composition for ceramic interconnector of tubular-SOCs.

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References

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