Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
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Electrochemical Properties of Segmented-in-series SOFC Using Ni-Fe/YSZ Core-shell Anode

Ni-Fe/YSZ 코어-쉘 구조 연료극을 사용한 다전지식 고체산화물 연료전지의 전기화학적 특성

  • An, Yong-Tae (Electronic Materials Convergence Division, Korea Institute of Ceramic Engineering & Technology) ;
  • Ji, Mi-Jung (Electronic Materials Convergence Division, Korea Institute of Ceramic Engineering & Technology) ;
  • Hwang, Hae-Jin (Department of Ceramic Engineering, Inha University) ;
  • Lee, Min-Jin (Electronic Materials Convergence Division, Korea Institute of Ceramic Engineering & Technology) ;
  • Hong, Sun-Ki (Electronic Materials Convergence Division, Korea Institute of Ceramic Engineering & Technology) ;
  • Kang, Young-Jin (Electronic Materials Convergence Division, Korea Institute of Ceramic Engineering & Technology) ;
  • Choi, Byung-Hyun (Electronic Materials Convergence Division, Korea Institute of Ceramic Engineering & Technology)
  • 안용태 (한국세라믹기술원 전자소재융합본부) ;
  • 지미정 (한국세라믹기술원 전자소재융합본부) ;
  • 황해진 (인하대학교 세라믹공학과) ;
  • 이민진 (한국세라믹기술원 전자소재융합본부) ;
  • 홍선기 (한국세라믹기술원 전자소재융합본부) ;
  • 강영진 (한국세라믹기술원 전자소재융합본부) ;
  • 최병현 (한국세라믹기술원 전자소재융합본부)
  • Received : 2014.04.29
  • Accepted : 2014.06.26
  • Published : 2014.07.31
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Abstract

An Ni-Fe/YSZ core-shell structured anode for uniform microstructure and catalytic activity was synthesized. Flat tubular segmented-in-series solid oxide fuel cell-stacks were prepared by decalcomania method using synthesized anode powder. The Ni-Fe/YSZ core-shell anode exhibited better electrical conductivity than a commercially available Ni-YSZ cermet anode. Also power output increased by 1.3 times with a higher open circuit voltage. These results can be attributed to the uniformly distributed Ni particles in the YSZ framework. The impedance spectra of a Ni-Fe/YSZ core-shell anode showed comparable reduced ohmic resistance similar to those of the commercially available Ni-YSZ cermet anodes.

Keywords

References

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