Solid oxide fuel cells with LaSr2Fe2CrO9-delta-Gd0.1Ce0.9O2-delta composite anodes were tested in H-2, H2S-contaminated H-2, and CH4 fuels as well as under redox cycling conditions. The La0.9Sr0.1Ga0.8Mg0.2O3-delta electrolyte supported cells had La0.4Ce0.6O2-delta barrier layers to prevent cation diffusion between LaSr2Fe2CrO9-delta and La0.9Sr0.1Ga0.8Mg0.2O3-delta. After an initial break-in where the performance improved slightly, the cells were stable in humidified H-2 with a power density >0.4W cm(-2) and an anode polarization resistance as low as 0.22 Omega cm(2). Anode polarization resistance showed little or no change after 15 redox cycles at 800 degrees C. Cell performance was stable with 22 ppm H2S, with only a slight performance decrease relative to pure H-2, but higher H2S concentrations caused continuous degradation. Also, the performance in humidified CH4 fuel was quite low. (C) 2012 Elsevier B.V. All rights reserved.