TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Catalyst: The catalyst is in the form of a collection of catalyst particles comprising not less than 5 g, preferably 10 g to 10 kg of catalyst particles. Particles are distributed in close proximity to each other. Particles are distributed in the collection in an arrangement suitable for commercial distribution, preferably as a supported matrix. The distribution of particles in the supported matrix is uniform or random. The supported matrix comprises an oxygen reduction cathode or a near planar array, preferably a near planar array having a thickness of 0.0001-10 cm and area of 100-500 cm.Preferred Materials: Carbon black has surface area of not less than 200 m2/g, resistivity of no more than 0.01 ohm.cm and/or internal volume of no less than 150 cm3/100 g.The metal is iron, cobalt, ruthenium, manganese, zinc, molybdenum, chromium, cobalt, vanadium, rhodium and/or nickel, preferably iron. One or more metal-containing and/or nitrogen containing precursor(s) comprises at least one precursor comprising a metal and at least one precursor comprising nitrogen, or at least one precursor comprising both metal and nitrogen. The metal is chosen from alkali element or its salt or compound, alkaline earth element or its salt or compound, transition block element or its salt or compound, lanthanoid block element or its salt or compound, and/or actinoid block element or its salt or compound, preferably iron or its salt or compound.The precursor comprising nitrogen is ammonia, acetonitrile, hydrazine, pyrrole, urea, and/or nitrogen-salt or nitrogen containing compound that can serve as a nitrogen donor to metal at 600-1000 degreesC, preferably ammonia. The precursor comprising both metal and nitrogen comprises metal macrocycle comprising metal, preferably iron and nitrogen. The reducing agent is chosen from hydrogen, carbon monoxide, and/or gas that can serve to provide reducing atmosphere at 600-1000 degreesC.Preferred Process: A gas mixture comprising a carrier gas, a nitrogen containing precursor comprising a nitrogen containing gas and a reducing agent comprising a reducing gas, and a metal precursor comprising a metal salt fluid are added to the reaction zone. Carbon black particles and the metal salt fluid are mixed to form atomized carbon black/metal fluid suspension that is introduced into the reaction zone. The gas mixture is formed prior to heating the gas mixture. The suspension is entrained in the gas mixture. The gas mixture is allowed to flow along a flow path to the reaction zone and the suspension is introduced to the reaction zone through the flow of the gas mixture.The atomized carbon black/metal fluid suspension is formed using an atomizer by atomizing carbon black containing fluid and metal containing fluid, or by ultrasound or aerosol. Both carbon black containing fluid and metal containing fluid are chosen from organic fluid and aqueous fluids. Temperature in reaction zone is maintained via heating with a heat source. The heat source comprises a furnace chosen from resistively heated furnaces, microwave-based furnaces, induction-based furnaces, infrared-based furnaces, and/or flame-based furnaces. Temperature is achieved by adjusting the furnace temperature and/or adjustment of the reactant flow rate through the reaction zone. A carrier gas comprising nitrogen, argon and/or helium is introduced to the reaction zone.Particles are produced at a rate of not less than 10 g/day, preferably 10 g to 100 kg per hour. The reaction zone is maintained in a vertical tube surrounded in portion by a heating element, or maintained in a rotating kiln tilted at an angle from the horizontal. Carbon black particles are dispersed over a supporting surface of the reaction zone.