Catalytic steam reforming of methane over La0.8Sr0.2CrO3 based Ru catalysts

T. Caillot (1) , P. Gélin (1) , J. Dailly , G. Gauthier , C. Cayron , J. Laurencin

1 IRCELYON - Institut de recherches sur la catalyse et l'environnement de Lyon

La0.8Sr0.2CrO3 based Ru catalysts were studied as potential new anodic materials for Solid Oxide Fuel Cells directly fed with methane and operating at intermediate temperature under water deficient conditions. Two kinds of materials very close in composition were obtained following two different preparation procedures. Catalyst samples were characterized by physicochemical methods (XRD, SEM, BET and Chemical Analysis) and studied in methane steam reforming under water deficient conditions. Carbon formation during catalytic testing was studied by temperature programmed oxidation (TPO). Both types of catalysts were found very active and resistant to carbon formation. The unusual oscillatory behavior of the catalytic activity observed for one type of catalyst was discussed.

Mots clés: Steam reforming of methane; Solid oxide fuel cell; Internal reforming; Ruthenium; Strontium-doped lanthanum chromite; "Steam reforming of methane"; "Solid oxide fuel cell"; "Internal reforming"; "Ruthenium"; "Strontium-doped lanthanum chromite"

Domaines: Environnement et Société; Catalyse

T. Caillot, P. Gélin, J. Dailly, G. Gauthier, C. Cayron, et al.. Catalytic steam reforming of methane over La0.8Sr0.2CrO3 based Ru catalysts. Catalysis Today, 2007, 128, pp.264-268. ⟨10.1016/j.cattod.2007.06.071⟩. ⟨hal-00254912⟩