Producing coated particle, comprises evaporating a first starting material, and condensing below formation of particles, which are subsequently coated below supply of a second starting material

摘要

The method for producing coated particle (10b) with an average particle size of 100 nm, comprises evaporating a first starting material (11), and condensing below formation of particles, which are subsequently coated below supply of a second starting material (13), where the second starting material has hydrocarbon-containing gas, the particle is coated by a chemical vapor deposition having a layer (12) from carbon and the evaporation of the first starting material is carried out by a direct current plasma. The process pressure such as atmospheric pressure during coating is 0.8-1.2 bar. The method for producing coated particle (10b) with an average particle size of 100 nm, comprises evaporating a first starting material (11), and condensing below formation of particles, which are subsequently coated below supply of a second starting material (13), where the second starting material has hydrocarbon-containing gas, the particle is coated by a chemical vapor deposition having a layer (12) from carbon and the evaporation of the first starting material is carried out by a direct current plasma. The process pressure such as atmospheric pressure during coating is 0.8-1.2 bar. The producing and the coating of the particle are performed in a continuous operation. The particle is directly mixed after the condensation with the hydrocarbon-containing gas. The carbon is obtained by a pyrolysis of the second hydrocarbon-containing starting material. The particle is coated with a graphite-like layer from the carbon or a diamond-like-carbon-layer. The coating of the particle is carried out at a temperature of less than 500[deg] C. The layer is non-conductive from the carbon. An independent claim is included for a device for producing coated particles.