Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
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Synthesis and Characterization of Spherical Nano Ni(1-x)-M(x=0~0.15)(M=Co, Fe) Alloy Powder for SOFC Anode

SOFC anode용 나노구형 Ni(1-x)-M(x=0~0.15)(M=Co, Fe) alloy 분말 합성 및 그 특성

  • Lee, Min-Jin (Electronic Materials Team, Korea Institute of Ceramic Engineering & Technology) ;
  • Choi, Byung-Hyun (Electronic Materials Team, Korea Institute of Ceramic Engineering & Technology) ;
  • Ji, Mi-Jung (Electronic Materials Team, Korea Institute of Ceramic Engineering & Technology) ;
  • An, Young-Tae (Electronic Materials Team, Korea Institute of Ceramic Engineering & Technology) ;
  • Hong, Sun-Ki (Electronic Materials Team, Korea Institute of Ceramic Engineering & Technology) ;
  • Kang, YoungJin (Electronic Materials Team, Korea Institute of Ceramic Engineering & Technology) ;
  • Hwang, Hae-Jin (Advanced Materials Engineering, Inha University)
  • 이민진 (한국세라믹기술원 전자소재팀) ;
  • 최병현 (한국세라믹기술원 전자소재팀) ;
  • 지미정 (한국세라믹기술원 전자소재팀) ;
  • 안용태 (한국세라믹기술원 전자소재팀) ;
  • 홍선기 (한국세라믹기술원 전자소재팀) ;
  • 강영진 (한국세라믹기술원 전자소재팀) ;
  • 황해진 (인하대학교 신소재공학과)
  • Received : 2014.06.05
  • Accepted : 2014.06.24
  • Published : 2014.07.31
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Abstract

In this study, the reducing agent hydrazine and precipitator NaOH were used with $NiCl_2$ as a starting material in order to compound Ni-based material with spherical nano characteristics; resulting material was used as an anode for SOFC. Synthetic temperature, pH, and solvent amounts were experimentally optimized and the synthesis conditions were confirmed. Also, a 0 ~ 0.15 mole ratio of metal(Co, Fe) was alloyed in order to increase the catalyst activation performance of Ni and finally, spherical nano $Ni_{(1-x)}-M_{(x=0{\sim}0.15)}$(M = Co, Fe) alloy materials were compounded. In order to evaluate the catalyst activation for hydrocarbon fuel, fuel gas(10%/$CH_4$+10%/Air) was added and the responding gas was analyzed with GC(Gas Chromatography). Catalyst activation improvement was confirmed from the 3% hydrogen selectivity and 2.4% methane conversion rate in $Ni_{0.95}-Co_{0.05}$ alloy; those values were 4.4% and 19%, respectively, in $Ni_{0.95}-Fe_{0.05}$ alloy.

Keywords

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