TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Components: The proton conductive metal oxide: has an acidic functional group comprising at least one of a sulfuric acid group, a carboxyl group, a phosphoric acid group, or a sulfonic acid group and where the amount of the acidic functional group is 5-15 parts by weight; is an oxide of at least one metal including zirconium, tin, titanium, silicon or tungsten; and is present at 5-15 parts by weight. The conductive metal catalyst material comprises platinum, iron, cobalt, nickel, ruthenium, rhodium, palladium, osmium, iridium, copper, silver, gold, tin, titanium, chromium and/or their alloys. Preferred Method: The method further comprises, after the drying, treating the dried resultant product with an acid solution.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Components: The solvent comprises at least of N-methylpyrrolidone (NMP), dimethylacetamide, dimethylformamide or trifluoroacetate.    TECHNOLOGY FOCUS - POLYMERS - Preferred Components: The catalyst composition further comprises a hydrophobic material comprising at least one of a 2,2-bistrifluoromethyl-4,5-difluoro-1,3-dioxoltetrafluoroethylene copolymer, polytetrafluoroethylene (PTFE), fluorinated ethylene propylene (FEP) or polyvinylidenefluoride (PVdF). The binder resin comprises at least one of PVdF, PTFE, a vinylidenefluoride-hexafluoropropylene copolymer, or a fluorine-terminated phenoxide-based hyper branched polymer. EXAMPLE - Platinum cobalt/carbon (1 g), polytetrafluoroethylene (0.1 g) as a binder resin, N-methylpyrrolidone (4 g) as a solvent, and a sulfuric acid group-containing zirconium oxide (prepared by zirconium oxide powder (5 g) was dried at 240 degrees C in vacuum, and added to a 2M aqueous ammonium sulfate solution (500 ml), and the mixture was stirred for 24 hours, filtered and dried at 60 degrees C in vacuum and further dried at 350 degrees C for 2 hours and at 550 degrees C for 2 hours) (0.1 g) were mixed, and the resultant mixture was stirred at room temperature for 30 minutes to obtain the composition for forming a catalyst layer in a slurry state.