Catalytic active coating of ceramic honeycombs, metal surfaces and other catalyst carriers for waste gas purification, fuel cells and burner assemblies

摘要

The device for the catalytic coating of honeycomb bodies (1) and surfaces useful for the oxidation reactions, where the surfaces are pre-coated with a layer of fine precious metal powder (2), are post-coated with catalytically active substance and then coated with an aqueous solution of lanthanum-cerium-cobalt crystal powder (3) and oxalic acid, is claimed. The coating takes place with the precious metal powder with a grain size of less than 10 mu m with a sugar solution and than the bodies are burned at 800-1000[deg] C. Independent claims are included for: (1) a method for the catalytic post-cleaning of exhaust gases from the thermal exhaust air purification; and (2) a method for the catalytic coating of honeycomb bodies and surfaces.