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J. Korean Ceram. Soc. > Volume 51(4); 2014 > Article
Journal of the Korean Ceramic Society 2014;51(4): 357.
doi: https://doi.org/10.4191/kcers.2014.51.4.357
Ni-Fe/YSZ 코어-쉘 구조 연료극을 사용한 다전지식 고체산화물 연료전지의 전기화학적 특성
안용태, 지미정, 황해진1, 이민진, 홍선기, 강영진, 최병현
한국세라믹기술원 전자소재융합본부
1인하대학교 세라믹공학과
Electrochemical Properties of Segmented-in-series SOFC Using Ni-Fe/YSZ Core-shell Anode
Yong-Tae An, Mi-Jung Ji, Hae-Jin Hwang1, Min-Jin Lee, Sun-Ki Hong, Young-Jin Kang, Byung-Hyun Choi
Electronic Materials Convergence Division, Korea Institute of Ceramic Engineering & Technology
1Department of Ceramic Engineering, Inha University
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.
Key words: Ni-Fe/YSZ anodes, Core-shell, Ohmic resistance, Polarization resistance, Power output
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