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

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Author(s)

Jimmi Nielsen, Åsa H. Persson, Bhaskar R. Sudireddy, John T. S. Irvine, Karl Thydén

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Abstract

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 × 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 cm2) and a power density at 0.7 V and 700 °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.
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Original languageEnglish
Pages (from-to)99-106
Number of pages8
JournalJournal of Power Sources
Volume372
Early online date5 Nov 2017
DOIs
StatePublished - 31 Dec 2017

    Research areas

  • Solid oxide fuel cell, Metal support, Lanthanum doped strontium titanate, Redox tolerance, Perovskite A site deficiency

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