Perovskite-type oxides are known to be very good oxidation catalysts. The redox properties of the TM cation, the availability of weakly bonded oxygen at the Surface and the presence of lattice defects have been often claimed as responsible for their catalytic activity. Moreover, their performances can be improved if they are nanodimensioned. The present stud focuses on the development of new LaCoO3-based catalysts for alcohol (methanol, ethanol) steam reforming. Several La0.6Sr0.4Co1-yFeyO3 (y=0.2, 0.5, 0.8) were prepared by the citrte gel method and calcined at 1073K for 5h in air. Herein the influence of the cobalt/iron ration on the surface properties was investigated.
La0.6Sr0.4Co1-yFeyO3- δ Powders Studied by X-ray Photoelectron Spectroscopy
GLISENTI, ANTONELLA
2008
Abstract
Perovskite-type oxides are known to be very good oxidation catalysts. The redox properties of the TM cation, the availability of weakly bonded oxygen at the Surface and the presence of lattice defects have been often claimed as responsible for their catalytic activity. Moreover, their performances can be improved if they are nanodimensioned. The present stud focuses on the development of new LaCoO3-based catalysts for alcohol (methanol, ethanol) steam reforming. Several La0.6Sr0.4Co1-yFeyO3 (y=0.2, 0.5, 0.8) were prepared by the citrte gel method and calcined at 1073K for 5h in air. Herein the influence of the cobalt/iron ration on the surface properties was investigated.
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