TECHNOLOGY FOCUS - ELECTRICAL POWER AND ENERGY - Preferred Fuel Reformer: (B) is at most 2 mum thick. (A) and (B) are unified.Preferred Materials: (B) comprises a material containing a noble metal (especially. at least one from platinum, palladium, gold, iridium, silver, rhodium and ruthenium). The catalyst comprises a material containing a platinum group element, or it comprises a noble metal layer supported either on ceramic or on a fine carbon powder. (A) also contains a binder (especially a fluorinated organic binder or a fluorinated ionic conductive organic resin). (A) contains a multiporous carbon material. (A) contains a multiporous carbon layer provided on the liq. fuel supply side.Preferred Method: In step (iv), the bedding layer is removed by dissolving in an acid, alkali or organic solvent. The bedding layer is formed from aluminum or an aluminum alloy. The fuel reformer comprises a unified body of the above fuel reformer and a catalyst electrode having a catalyst layer comprising a noble metal supported on carbon and an ionic conductive binder. EXAMPLE - A fluorinated resin and carbon powder were mixed in water, coated onto a multiporous carbon sheet, and heated to at least the resin softening pt. in an inert gas, to form a hydrophobic layer on the carbon sheet. Onto this was coated a mixture of a carbon-supported Pt-Ru alloy catalyst and ionic conductive perfluorosulfonic acid, to form a fuel catalyst electrode (Pt-Ru = 0.5 mg/cm2). Similarly, a mixture of a carbon-supported Pt catalyst and ionic conductive perfluorosulfonic acid was coated onto the hydrophobic layer of a carbon sheet, to form an oxygen catalyst electrode (Pt = 0.5 mg/cm2). Then a perfluorosulfonic acid film was formed on both sides of the two electrodes, and heat press bonded, to give a membrane electrode assembly for a fuel cell. Separately, onto a 1 mm thick glass substrate was sputtered a 100 nm thick Al film, onto this sputtered a 500 nm thick Pd film, to give a layer (B). Onto this was coated a mixture of 10 wt.% Pt supported on Al2O3 powder , carbon powder, polyvinylidene fluoride and 1-methyl-2-pyrolidone, and dried, to give a layer (A). Next, the glass layer substrate was immersed in 5 N NaOH solution to dissolve the Al and leave only the Pd film attached to the layer (A), to form a unified fuel reformer. Using this and the membrane electrode assembly in a fuel cell with 1:1 (molar ratio) methanol:water as the liq. fuel gave 30% higher output than a comparative example prepared without the Pd film.