Production method null of metal connotation carbon

摘要

PURPOSE: To enhance the productivity of a metal-contg. carbon cluster, to facilitate collection and to increase the kinds of metallic compds. by pulverizing a metallic element-contg. oxide and a powdery carrier in an org. solvent and carrying out drying, heating in an atmosphere of a hydrogen-contg. reducing gas and heating in a vacuum. CONSTITUTION: A metal oxide and a powdery carrier, preferably alumina, zirconia or manganese oxide are pulverized in an org. solvent to stick the metal oxide of about several μm to the surface of the carrier. The metal oxide is reduced by heating in an atmosphere of a hydrogen-contg. reducing gas and the objective metal-contg. carbon cluster is formed from carbon atoms fed from the adsorbed residual org. solvent or graphite by heating in a vacuum. For example, alumina powder having 20-400 nm diameter is mixed with tungsten oxide powder having several μm diameter and alcohol. After pulverization, the resultant tungsten doped alumina powder 4 with occluded alcohol is put in a graphite vessel 1, the vessel 1 is set in a carbon fiber vessel 3 and the powder 4 is heated with a carbon heater 2 while blowing hydrogen-contg. gaseous Ar.