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Resistant Characteristics of AAO-Based Thin Film Solid Oxide Fuel Cells Using Ni-GDC Anode by GLAD Method 회전경사증착 기법을 이용한 Ni-GDC 연료극이 적용된 AAO 기반의 저온작동 박막 고체산화물 연료전지의 저항 특성 연구

논문 기본 정보

저자정보
(서울대학교) (서울대학교) (서울대학교) (서울대학교)
저널정보
Korean Society for Precision Engineering Journal of the Korean Society for Precision Engineering Journal of the Korean Society for Precision Engineering Vol.40 No.4
발행연도
수록면
335 - 340 (6page)
DOI
10.7736/JKSPE.022.135
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Resistant Characteristics of AAO-Based Thin Film Solid Oxide Fuel Cells Using Ni-GDC Anode by GLAD Method
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    초록·키워드

    In this study, we fabricated thin film solid oxide fuel cells on nanoporous anodic aluminum oxide (AAO) substrate for low-temperature operation using the all-through sputtering method. To deposit up to a three-micrometer thick anode with both porosity and electrical conductivity, we used the glancing angle deposition and co-sputtering methods. For the anode materials, we used nickel gadolinium-doped-ceria (Ni-GDC) mixed ionic and electronic conductor (MIEC), which improved hydrogen oxidation reaction reactivity at the anode side. TF-SOFCs were successfully operated at 500℃, and 223.6 mW/cm² was their highest measured maximum power density. We conducted structural and electrochemical analyses to figure out cells’ unique resistant characteristics; ohmic resistance through the anode thin film and polarization resistance of reaction area near the narrowed anode pores. We found how the anode thin film thickness affects the current collecting performance and the anode reactivity, and their effects were qualitatively and quantitatively compared.

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