TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Material: The carbonaceous material is carbon black (preferably), graphite, nanocarbons, fullerenes, fullerenic material and/or finely divided carbon. Preferred Component: The hetero atoms are nitrogen, oxygen or sulfur. The oxidizing agent is ammonium persulfate, ferric chloride, aluminum chloride, hydrogen peroxide, potassium permanganate, sodium permanganate and/or potassium chlorate. The metal-containing material is chloroplatinic, acid, platinum nitrate, platinum halides, platinum cyanide, platinum sulfide and/or organoplatinum salts. Preferred Composition: The composition comprises less than 98, preferably 50-80% carbonaceous material. It comprises 0.2-15% hetero atoms. It comprises metal, preferably platinum. The metal is 2-80, preferably 20-40%.    TECHNOLOGY FOCUS - POLYMERS - Preferred Component: The conducting polymer is polyaniline, polypyrrole, polyfuran, polythiophene, poly(p-phenylene-oxide), poly(p-phenylene-sulfide)and/or substituted conducting polymers. The monomer of a conducting polymer is an amino aryl or a nitrogen heterocycle. Preferred Composition: The composition comprises 0-100, preferably 20-50% conducting polymer. Preferred Method: The oxidative polymerization is in the presence of an oxidizing agent. The slightly acid environment is a pH of less than 7, preferably 3-4. The conducting polymer-grafted carbonaceous material is metallized by adding a metal-containing material to the conducting polymer-grafted carbonaceous material or by adding a reducing agent. Preferred Material: The electrolyte membrane is made of Nation    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Component: The reducing agent is formaldehyde, formic acid, sodium borohydride, hydrogen, hydrazine and/or hydroxyl amine.    TECHNOLOGY FOCUS - ELECTRICAL POWER AND ENERGY - Preferred Device: The device comprises an electrolyte membrane. EXAMPLE - A slurry containing CDX-975 (RTM: carbon black) (100 g), glacial acetic acid (25 ml) and deionized water 9750 ml) was prepared. Aniline (20 g) was added to the slurry with stirring. A solution containing ammonium persulfate (45 g) in deionized water (250 ml) was added to the carbon black slurry, and stirring continued at room temperature for 2 hours. The carbon black slurry was filtered, washed, dried at 110degreesC for 4 hours and pulverized. The resultant carbon powder contains grafted polyaniline conducting polymer.