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

The Korean Hydrogen and New Energy Society (한국수소및신에너지학회)
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Quantitative Microstructure Analysis to Predict Electrical Property of NiO-YSZ Anode Support for SOFCs

미세조직 정량 분석을 통한 고체산화물 연료전지용 NiO-YSZ 연료극 전기전도도 예측

  • Wahyudi, Wandi (Department of Advanced Energy Technology, University of Science and Technology) ;
  • Ahmed, Bilal (Department of Advanced Energy Technology, University of Science and Technology) ;
  • Lee, Seung-Bok (Department of Advanced Energy Technology, University of Science and Technology) ;
  • Song, Rak-Hyun (Department of Advanced Energy Technology, University of Science and Technology) ;
  • Lee, Jong-Won (Department of Advanced Energy Technology, University of Science and Technology) ;
  • Lim, Tak-Hyoung (Fuel Cell Research Center, Korea Institute of Energy Research) ;
  • Park, Seok-Joo (Fuel Cell Research Center, Korea Institute of Energy Research)
  • 완디 와휴디 (과학기술연합대학원 신에너지학과) ;
  • 빌랄 아메드 (과학기술연합대학원 신에너지학과) ;
  • 이승복 (과학기술연합대학원 신에너지학과) ;
  • 송락현 (과학기술연합대학원 신에너지학과) ;
  • 이종원 (과학기술연합대학원 신에너지학과) ;
  • 임탁형 (한국에너지기술연구원 수소연료전지연구단) ;
  • 박석주 (한국에너지기술연구원 수소연료전지연구단)
  • Received : 2013.06.14
  • Accepted : 2013.06.30
  • Published : 2013.06.30
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Abstract

The correlation between NiO-YSZ microstructure and its electrical property used for SOFC anode was critically evaluated with image processing and direct measurement techniques. These innovative processing techniques were employed to quantify the contiguity of the anode constituent phase. The calculated contiguities were then correlated with electrical conductivity attained from 4-probe DC method. This investigation described that contiguity of nickel oxide phases of an anode has a linear relationship with its electrical conductivity. We observed that the contiguity of NiO increased from 0.18 to 0.50 then electrical conductivity attained was significantly increased from 520 S/cm to 1468 S/cm at $900^{\circ}C$.

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References

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