Hierarchically oriented macroporous anode-supported solid oxide fuel cell with thin ceria electrolyte film.
作者： Yu Chen , Yanxiang Zhang , Jeffrey Baker , Prasun Majumdar , Zhibin Yang
DOI: 10.1021/AM5003662
关键词:
摘要: Application of anode-supported solid oxide fuel cell (SOFC) with ceria based electrolyte has often been limited by high cost film fabrication and electrode polarization. In this study, dense Gd0.1Ce0.9O2 (GDC) thin electrolytes have fabricated on hierarchically oriented macroporous NiO–GDC anodes a combination freeze-drying tape-casting the anode, drop-coating GDC slurry co-firing electrolyte/anode bilayers. Using 3D X-ray microscopy subsequent analysis, it determined that anode substrates porosity around 42% channel size from 10 μm at side to 20 other (away electrolyte), indicating microstructure. Such microstructure shows tortuosity factor ∼1.3 along thickness direction, expecting facilitate gas diffusion in during operation. SOFCs such...
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