Novel co-extruded electrolyte-anode hollow fibres for solid oxide fuel cells

作者：Droushiotis Nicolas; Othman Mohd Haft Dzarfan; Doraswami Uttam; Wu Zhentao; Kelsall Geoff; Li Kang^*

来源：Electrochemistry Communications, 2009, 11(9): 1799-1802.

DOI：10.1016/j.elecom.2009.07.022

• Micro-tubular SOFC
• CGO
• Ni
• LSCF
• Co-extrusion
• Hollow fibres

Novel CGO/NiO-CGO dual-layer hollow fibres (HFs) have been fabricated in a single-step co-extrusion and co-sintering process. LSCF-CGO cathodes layers were then deposited onto the dual-layer HFs to construct micro-tubular SOFCs. The NiO in the micro-tubular HF-SOFCs was reduced at 550 degrees C using hydrogen gas to form Ni anodes. Scanning electron microscope images showed that the dual-layer HFs have porous anodes and dense electrolyte layers. Preliminary measurements with a HF-SOFC fed with H(2) and atmospheric oxygen, produced maximum power densities of 420 W m(-2) and 800 W m(-2) at 450 degrees C and 550 degrees C, respectively.

• 出版日期2009-9