TECHNOLOGY FOCUS - ELECTRICAL POWER AND ENERGY - Preferred Component: The electrochemical fuel cell comprises the catalyzed cathodes; and an anion-exchange membrane, a liquid electrolyte, or an anode. The liquid electrolyte contains an aqueous solution of a strong base, or an aqueous solution of a strong protic acid. The electrochemical fuel cell may comprise the proton exchange membrane; the anion exchange membrane; and a liquid alkaline electrolyte, or a liquid acid electrolyte.    TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Component: The metals in combination with cobalt are made of iron, ruthenium, rhodium, iridium, nickel, palladium, molybdenum, tin, manganese, vanadium, or lanthanum. The cobalt loading varies from 0.1-50 wt.% with respect to the support. The overall metal loading varies from 0.1-50 wt.% with respect to the support. The atomic ratio between the cobalt and the iron, between the cobalt and the ruthenium, between the cobalt and the rhodium, between the cobalt and the iridium, between the cobalt and the nickel, between the cobalt and the palladium, between the cobalt and the tin, between the cobalt and the molybdenum, between the cobalt and the vanadium, between the cobalt and the manganese, between the cobalt and the lanthanum, or between the cobalt and the metal is 99:1-1:99. The atomic ratio between the metals can be any possible combination.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Component: The 4-(1-((phenyl-2,4-disubstituted)-hydrazine)-alkyl)-benzene-1,3-diol is a compound of formula (A). The 3,5-disubstituted phenol is a compound with the formula (B). The salts are carboxylates, halides, alcoholates, acetylacetonates formats, oxalates, malonates and similar organic salts and their mixtures, or carbonates and bicarbonates or their mixtures. The fuel is gaseous hydrogen, reformed hydrogen, alcohols, hydrazine and hydroxylamine, borohydrides with various metal and non-metal cations, aldehydes, acids, hydrocarbons, or fossil fuels.R1 = H or a hydrocarbon fragment with 1-10C, possibly halogenated;R2, R3 = an electron-withdrawing group selected in the series constituted by H, halo, acyl, ester, carboxylic acid, formyl, nitrile, sulfonic acid, aryls, linear or branched alkyls containing 1-15C, eventually functionalized with halogen atoms, or linked to each other in such a way to form one or more rings condensed with the phenyl ring, or nitro groups;andR4, R5 = an electron-donating group from H, OH, ether, amine, aryls or linear and branched alkyls, with 1-15C.Preferred Process: The process may comprise complexing a mixture made of a salt or a cobalt compound and one or more metal salts by the polymer, supporting the resultant metallized polymer on porous and conductive carbon materials, and finally, heating the resultant product up to 1000degreesC in the inert gas atmosphere; or first complexing the salt or the cobalt compound by the polymer, treating the resultant complex with one or more salts, supporting the resultant metallized polymer on the porous and conductive carbon materials, and finally heating the resultant product up to 1000degreesC in the inert gas atmosphere. The complex, or the polymer metallized with cobalt alone or with cobalt and one or more metals, is supported on porous metal oxides, and the obtained product is heated up to 1000degreesC in the inert gas atmosphere.    TECHNOLOGY FOCUS - POLYMERS - Preferred Component: The polymers are represented by the formula (C).y = 2-120;x = 1-2;n = 1-3; andR1-R5 = as defined above. EXAMPLE - Cobalt (II) acetate tetrahydrate (3.6 g) was added to a suspension containing POLIMERO (7 g) in water (200 m). The mixture was brought to pH 9 by addition of sodium hydroxide (1M, 100 mL), and energetically stirred for 15 hours at ambient temperature. A brown red precipitate formed, which was filtered off, washed several times with distilled water (3x40 mL) and dried under vacuum at 70degreesC until constant weight, thus yielding 9 g and had cobalt content of 3.74 wt.%. Vulcan XC-72R (36 g) previously activated by reflux in nitric acid (HNO3, 1N, 100 mL), filtered, washed several times in water and heated up to 800degreesC for 2 hour in an inert gas stream, was added to a suspension of 3.6 g of the product obtained before in acetone (600 mL) (finely dispersed with an ultrasound probe for 20 minutes). The resultant mixture was vigorously stirred at ambient temperature for 3 hours. Then, the solvent was removed by distillation at reduced pressure. The solid residue was placed into a quartz reactor and heated up to 600degreesC in a nitrogen stream for 2 hours, thus having a cobalt content of 0.37 wt.%.