Defective structure, high thermal stability and dispersity are the most essential peculiarities of materials for application as redox catalystsit and is very important to develop the methods alloying to control these structural features. We report on preparation of the nanocrystalline Ce_0.45Zr_0.45La_0.10O_2-y/Ru(Pt) catalysts via organic-free modification of the sol-gel technique, and their characterization by TEM, XRD, DTA, TG, FTIR, EPR, XPS and TPR by CH₄. The incorporation of La(III) into Ce-Zr-O structure leads to stabilization of highly dispersed (4-5 nm) c-Zr_xCe_1-xO₂ solid solution with developed surface up to 1000^oC. La, Ru and Pt doping of the Zr_0.5Ce_0.5O₂ lattice increases the concentration of Ce³⁺ defects detected by ESR. The cause of Ce_0.45Zr_0.45La_0.10O_2-δ/Pt-anodes catalytic activity in partial oxidation of dry CH₄ in a SOFC-type reactor will be discussed.

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