Scale Up and Anode Development for La ‐Doped SrTiO 3 Anode‐Supported SOFC s

The possibility of developing large solid oxide fuel cell ( SOFC ) stacks based upon 25 cm 2 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 185 mW cm −2 at 850°C using humidified hydrogen as fuel and air as oxidant. The structure and evolution of the catalytically active impregnated materials‐10 mol% Gd ‐doped CeO 2 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 ~50–150 nm spherical‐like nickel particles uniformly decorate this top layer.