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Received October 16, 2011
Accepted December 4, 2011
articles This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
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세그먼트 관형 SOFC의 제작 및 특성 평가

Fabrication and Property Evaluation of Tubular Segmented-in-Series Solid Oxide Fuel Cell (SOFC)

1한국에너지기술연구원 연료전지연구센터, 305-343 대전광역시 유성구 가정로 102 2충남대학교 바이오 응용화학과, 305-343 대전시 유성구 궁동 220
1Fuel Cell Research Center, Korea Institute of Energy Research, 102 Gajung-ro, Yuseong-gu, Daejeon 305-343, Korea 2Department of Fine chemical Engineering and Appilied chemistry, Chungnam National Univ., 220 Gung-dong, Yuseong-gu, Daejeon 305-764, Korea
ddak@kier.re.kr
Korean Chemical Engineering Research, June 2012, 50(3), 562-566(5), NONE Epub 5 June 2012
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Abstract

본 논문에서는 세그먼트 관형 고체산화물 연료전지(SOFC)의 설계 및 제작과 특성 분석을 다루고 있다. 관형 세라믹 지지체는 압출 공정을 통하여 제작하였으며, NiO-YSZ 연료극과 YSZ 전해질은 담금 코팅법을 통해 세라믹 지지체에 코팅하였다. 코팅된 세라믹 지지체를 1,350 ℃에서 5시간 동안 열처리하였으며, 10 μm 미만의 치밀하고, 균열이 없는 YSZ 전해질 층을 얻을 수 있었다. 또한 열처리된 세라믹 지지체에 LSM-YSZ/LSM/LSCF로 구성된 다층 구조 공기극을 담금법으로 코팅하여 1,150 ℃에서 열처리하였다. 세라믹 관형 지지체에 코팅된 세그먼트 SOFC 셀은 Ag-glass 연결재를 사용하여 전기적으로 직렬 연결하였으며, 수소연료 유량과 운전 온도에 따른 세그먼트 SOFC의 성능 변화를 측정하였다.
A novel design of tubular segmented-in-series(SIS) solid oxide fuel cell (SOFC) sub module was presented in this paper. The tubular ceramic support was fabricated by the extrusion technique. The NiO-YSZ anode and the yttria-stabilized zirconia (YSZ) electrolyte were deposited onto the ceramic support by dip coating method. After sintering at 1350 ℃ for 5 h, a dense and crack-free YSZ film was successfully fabricated. Also, the multi-layered cathode composed of LSM-YSZ composite, LSM and LSCF were coated onto the sintered ceramic support by dip coating method and sintered at 1150 ℃. The performance of the tubular SIS SOFC cell and sub module electrically connected by the Ag-glass interconnect was measured and analysed with different fuel flow and operating temperature.

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