TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Compounds: The soluble platinum (Pt) compound is chosen from platinum chloride (PtCl2), hexachloroplatinic acid (H2PtCl6), platinum-dibenzylideneacetone (dba) complex (Pt2(dba)3), platinum-divinyltetramethyldisiloxane (dvs) complex (Pt(dvs)), platinum-acetate-acetylacetonate complex ((Pt(OAc)2Pt(acac)2), Na2PtCl6, K2PtCl6, platinum carbonate, platinum nitrate, platinum perchlorate and/or platinum amine complexes.The soluble ruthenium (Ru) compound is chosen from RuCl3.xH2O, Ru(acac)3, Ru3(CO)12, Ru(OAc)3, ruthenium nitrate, ruthenium perchlorate and/or ruthenium amine complexes.The support material is chosen from metals and metal oxides, such as indium tin oxide, silver, gold, Pt/gold alloys, copper and indium zinc oxides or carbon, preferably conductive carbon material having pores that are small to capture nanoparticles, but not too small to interfere with gas flow.Preferred Process: The mixture of viscous polyol solution and electroconductive support material, is heated at 60-220 degreesC, preferably 70-190 degreesC, for 1 minute-24 hours, preferably 1 minute-1 hour. An additive chosen from group VI, group VII and group VIII metals, is further added to the mixture, and the mixture is heated to reduce soluble forms of platinum and ruthenium metals and additive.Preferred Composition: The Pt/Ru particles are present on the support material in the range of 0.1-0.5 mg/cm2.The ratio of Ru:Pt in the solution is 0.1:1-1:0.1, preferably 0.5:1-1:0.5.Preferred Properties: The Pt/Ru catalyst particles have a particle size less than 0.1 (preferably less than 0.05) microns.The soluble platinum and ruthenium have concentrations in the viscous polyol, which are sufficient to yield a metal loading on the support less than 100 wt.%, preferably less than 20 wt.% metal, with respect to 100 wt.% support.The support material is a high surface area conductive material and the support material has a surface area of 20-2000 m2/g, preferably 300-1500 m2/g.The conductive carbon material has a pore size of 1-100 nm, preferably 1-10 nm. SPECIFIC COMPOUNDS - The viscous polyhydroxylic alcohol is preferably ethylene glycol.    EXAMPLE - A solution of platinum chloride (in wt.%) (5) and ruthenium chloride (5) was prepared in 150 ml of ethylene glycol, to create a viscous polyol solution. The viscous polyol solution was mixed with 0.4 g of activated carbon, and was heated to reduce platinum (Pt) and ruthenium (Ru) to a zero valence state and form Pt/Ru catalyst. The Pt/Ru catalyst had high activity, and a surface area of 1300 m2/g.