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Scale Up and Anode Development for La-Doped SrTiO3 Anode-Supported SOFCs

Research output: Contribution to journalArticle

DOI

Author(s)

Cristian Daniel Savaniu, David Noel Miller, John Thomas Sirr Irvine

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Abstract

The possibility of developing large solid oxide fuel cell (SOFC) stacks based upon 25cm2 ceramic oxide anode-supported cells is investigated. Planar fuel cells comprising strontium titanate-based anode support impregnated with active catalysts were prepared using a combination of deposition techniques. The fuel cell tests performed in a semisealed rig have shown power densities of 185mWcm-2 at 850 degrees C using humidified hydrogen as fuel and air as oxidant. The structure and evolution of the catalytically active impregnated materials-10mol% Gd-doped CeO2 and nickel- are analysed using electron microscopy at the end of the fuel cell test, revealing that a ceria and nickel layer surrounds the titanate backbone grains while similar to 50-150nm spherical-like nickel particles uniformly decorate this top layer.

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Details

Original languageEnglish
Pages (from-to)1718-1723
Number of pages6
JournalJournal of the American Ceramic Society
Volume96
Issue number6
DOIs
Publication statusPublished - Jun 2013

    Research areas

  • Oxide fuel-cells, Electrical-properties, Strontium-titanate, Performance, Cathodes

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