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

다국어 초록 (Multilingual Abstract)

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 μm Ni-YSZ core-shell was 3 times higher than that of 1.0 μm NiO or 1.0 μm Ni-YSZ. Hydrogen selectivity was similar at 800oC, but hydrogen selectivity and methane conversion rate under 750oC was 10~25% higher, Power density was more than 2 times, ASR was about 1/3, when exposed to H2 atmosphere at 750oC for a long time, Ni particles did not have any growth or cut off conduction path.

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