POLYMETALLIC NANOSTRUCTURED MATERIALS OF THE GENERAL FORMULA MN1MN2MA, PROCESS FOR PREPARING THE SAME AND THEIR USES AS CATALYSTS FOR ELECTRO-OXIDATION OF SMALL-MOLECULE ORGANIC FUELS

摘要

The invention relates to mono- and polymetallic nanostructured materials, to a process for preparing the same and to the use thereof as catalysts in fuel cells. According to the invention, the materials have the general formula Mn1Mn2Ma, where Mn1 and Mn2 are noble metals and Ma is an addition element from the groups 3...16 of the periodic table. As claimed by the invention, the process consists in preparing the Mn1, Mn2 and Ma precursors, homogenizing the reagents, followed by the stage of reducing and of recovering the polymeric nanoparticles. As claimed by the invention, the materials are used as catalysts in the reactions of anodic oxidation of the small-molecule organic fuels.