Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10669619 | Thin Solid Films | 2015 | 24 Pages |
Abstract
Gadolinium-doped ceria (GDC) deposited by radio frequency magnetron sputtering is utilized as the anode interlayer for low-temperature solid oxide fuel cells (LT-SOFCs) with a nanothin yttria-stabilized zirconia (YSZ) electrolyte and Ni/Pt electrodes. When the thickness ratio of YSZ electrolyte versus 100 nm GDC anode interlayer is at or below 1.5, the electrochemical performance of the LT-SOFC is severely poor due to the microstructural instability of the GDC anode interlayer under high-temperature reducing atmospheric conditions. At 500 °C, the peak power density of the LT-SOFC with a Ni anode and a 20 nm GDC anode interlayer is ~ 30% higher than that without the GDC anode interlayer due to faster reaction kinetics on the anode side.
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Authors
Sanghoon Ji, Yoon Ho Lee, Taehyun Park, Gu Young Cho, Seungtak Noh, Yeageun Lee, Minwoo Kim, Seungbum Ha, Jihwan An, Suk Won Cha,