Infiltrated La0.4Sr0.4Fe0.03Ni0.03Ti0.94O3 based anodes metal supported solid oxide fuel cells for all ceramic and metal supported solid oxide fuel cells

[摘要] For improved robustness, durability and to avoid severe processing challenges alternatives to the Ni:YSZ composite electrode is highly desirable. The Ni:YSZ composite electrode is conventionally used for solid oxide fuel cell and solid oxide electrolysis cell. In the present study we report on high performing nanostructured Ni:CGO electrocatalyst coated A site deficient Lanthanum doped Strontium Titanate (La0.4Sr0.4Fe0.03Ni0.03Ti0.94O3) based anodes. The anodes were incorporated into the co-sintered DTU metal supported solid oxide fuel cell design and large sized 12 cm x 12 cm cells were fabricated. The titanate material showed good processing characteristics and surface wetting properties towards the Ni:CGO electrocatalyst coating. The cell performances were evaluated on single cell level (active area 16 cm(2)) and a power density at 0.7 V and 700 degrees C of 0.650 Wcm(-2) with a fuel utilization of 31% was achieved. Taking the temperature into account the performances of the studied anodes are among the best reported for redox stable and corrosion resistant alternatives to the conventional Ni:YSZ composite solid oxide cell electrode.

[发布日期] 2017-12-31

[关键词] Solid oxide fuel cell;Metal support;Lanthanum doped strontium titanate;Redox tolerance;Perovskite A site deficiency