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

  • 제28권1호
  • /
  • Pages.40-46
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  • 2017
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  • 1738-7264(pISSN)
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  • 2288-7407(eISSN)
한국수소및신에너지학회 (The Korean Hydrogen and New Energy Society)
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구형 Ni과 나노 YSZ Powder를 이용하여 제조한 Ni/YSZ Core-shell의 SOFC 연료극 특성

Characteristics of SOFC Anode of Ni/YSZ Core-shell Manufactured Using sSpherical Ni and Nano YSZ Powders

  • 최병현 (한국세라믹기술원 에너지소재센터) ;
  • 구자빈 (한국세라믹기술원 에너지소재센터) ;
  • 설광희 (한국세라믹기술원 에너지소재센터) ;
  • 지미정 (한국세라믹기술원 에너지소재센터)
  • Choi, Byung-Hyun (Energy Material Center, Korea Institute of Ceramics Engineering & Technology) ;
  • Koo, Ja-Bin (Energy Material Center, Korea Institute of Ceramics Engineering & Technology) ;
  • Seol, Kwang-Hee (Energy Material Center, Korea Institute of Ceramics Engineering & Technology) ;
  • Ji, Mi-Jung (Energy Material Center, Korea Institute of Ceramics Engineering & Technology)
  • 투고 : 2016.12.05
  • 심사 : 2017.02.28
  • 발행 : 2017.02.28
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초록

We reviewed the electrical properties of SOFC anode manufactured using spherical Ni and nano YSZ powder. When core-shell is fabricated by using submicron Ni as core and nano-sized YSZ as shell for SOFC anode, the electrical conductivity of the $0.2{\mu}m$ Ni-YSZ core-shell was 3 times higher than that of $1.0{\mu}m$ NiO or $1.0{\mu}m$ Ni-YSZ. Hydrogen selectivity was similar at $800^{\circ}C$, but hydrogen selectivity and methane conversion rate under $750^{\circ}C$ was 10~25% higher, Power density was more than 2 times, ASR was about 1/3, when exposed to $H_2$ atmosphere at $750^{\circ}C$ for a long time, Ni particles did not have any growth or cut off conduction path.

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참고문헌

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