NOVELTY - The process comprises ethylene glycol reduction, which comprises cleaning a surface of ruthenium nanoparticles so that the surface is free of ruthenium oxide by reducing the surface of the ruthenium nanoparticles, dispersing ruthenium nanoparticles ultrasonically into a first solution of ethylene glycol, heating the first solution to 120-160 degrees C, redispersing the surface cleaned ruthenium nanoparticles into a second solution of ethylene glycol, ultrasonicating the second solution and heating the second solution to 100-140 degrees C for depositing a platinum adlayer on the ruthenium nanoparticle.    USE - The process is useful for depositing a platinum adlayer on a ruthenium nanoparticle, which is useful in a homogeneous composition for a direct methanol fuel cell (all claimed) for portable power applications, micro power applications such as laptop computers and cell phones, and transmissions and distribution system.    ADVANTAGE - The process is capable of economically and controllably depositing the platinum adlayer on the ruthenium nanoparticle with excellent reproducibility thus efficiently, economically and safely providing optimized activity for electro-oxidation and supplying fuel in fuel cells with high density and performance.    DETAILED DESCRIPTION - The process comprises ethylene glycol reduction, which comprises cleaning a surface of ruthenium nanoparticles so that the surface is free of ruthenium oxide by reducing the surface of the ruthenium nanoparticles, dispersing ruthenium nanoparticles ultrasonically into a first solution of ethylene glycol, heating the first solution to 120-160 degrees C, redispersing the surface cleaned ruthenium nanoparticles into a second solution of ethylene glycol, ultrasonicating the second solution and heating the second solution to 100-140 degrees C for depositing a platinum adlayer on the ruthenium nanoparticle. The second solution further comprises a platinum (IV) compound. The platinum (IV) compound is reduced to platinum (0). The platinum adlayered on the ruthenium nanoparticle covers 30-50% of the surface area of the ruthenium nanoparticle. The platinum of 0-5wt.% enters a core of the ruthenium nanoparticle. A yield of the platinum adlayered onto the surface of the ruthenium nanoparticle is 80-100%. INDEPENDENT CLAIMS are included for:    (1) a homogeneous composition; and    (2) a direct methanol fuel cell.    DESCRIPTION OF DRAWING(S) - The figure shows a transmission electron microscope view of a platinum (67)-ruthenium.