The potential and challenges of thin-film electrolyte and nanostructured electrode for yttria-stabilized zirconia-base anode-supported solid oxide fuel cells

被引:105
作者
Noh, Ho-Sung [1 ]
Yoon, Kyung Joong [1 ]
Kim, Byung-Kook [1 ]
Je, Hae-June [1 ]
Lee, Hae-Weon [1 ]
Lee, Jong-Ho [1 ]
Son, Ji-Won [1 ]
机构
[1] Korea Inst Sci & Technol, High Temp Energy Mat Res Ctr, Seoul 136791, South Korea
基金
新加坡国家研究基金会;
关键词
Solid oxide fuel cell; Thin-film electrolyte; Nanostructure electrode; Pulsed-laser deposition; Anode support; Low-temperature performance; PULSED-LASER DEPOSITION; PERFORMANCE; SOFC; MEMBRANES; MICROSTRUCTURE; TEMPERATURE; FABRICATION; CATHODES; COMPOSITE; DIFFUSION;
D O I
10.1016/j.jpowsour.2013.08.072
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Thin-film electrolytes and nanostructured electrodes are essential components for lowering the operation temperature of solid oxide fuel cells (SOFCs); however, reliably implementing thin-film electrolytes and nano-structure electrodes over a realistic SOFC platform, such as a porous anode-support, has been extremely difficult. If these components can be created reliably and reproducibly on porous substrates as anode supports, a more precise assessment of their impact on realistic SOFCs would be possible. In this work, structurally sound thin-film and nano-structured SOFC components consisting of a nanocomposite NiO-yttria-stabilized zirconia (YSZ) anode interlayer, a thin YSZ and gadolinia-doped ceria (GDC) bi-layer electrolyte, and a nano-structure lanthanum strontium cobaltite (LSC)-base cathode, are sequentially fabricated on a porous NiO-YSZ anode support using thin-film technology. Using an optimized cell testing setup makes possible a more exact investigation of the potential and challenges of thin-film electrolyte and nanostructured electrode-based anode-supported SOFCs. Peak power densities obtained at 500 degrees C surpass 500 mW cm(-2), which is an unprecedented low-temperature performance for the YSZ-based anode-supported SOFC. It is found that this critical, low-temperature performance for the anode-supported SOFC depends more on the electrode performance than the resistance of the thin-film electrolyte during lower temperature operation. (C) 2013 Elsevier B.V. All rights reserved.
引用
收藏
页码:105 / 111
页数:7
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