TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Method: The catalyst preparing step further comprises preparing a catalytic particle solution, preparing a gasiform carrier, and making the gasiform carrier pass through the catalytic particle solution and carry parts of the catalytic particle solution to form the catalyst. Preferred Components: The catalyst comprises a gasiform carrier and a catalytic particle solution. The gasiform carrier is argon or helium. The catalyst comprises a gasiform transition metal element, where the transition metal element is iron, cobalt, nickel, copper, zinc or iridium. The work piece is made of silica, quartz, sapphire, glass, sodium chloride, silicon nitride, and/or alumina.    TECHNOLOGY FOCUS - INSTRUMENTATION AND TESTING - Preferred Components: The catalyst source comprises an inlet end, an outlet end and a liquid container, where the inlet end is connected with a gas source. The liquid container is configured between the inlet end and the outlet end for containing the catalytic particle solution. The outlet end is connected with the working chamber, where the gas source imports the gasiform carrier through the inlet end for making the gasiform carrier pass through the liquid container so that the gasiform carrier can carry parts of the catalytic particle solution to form the catalyst. The catalyst is supplied to the working chamber through the outlet end. The furnace body further comprises a warming device for warming the interior of the working chamber to a predetermined temperature, where the predetermined temperature is 200-1200 degrees C. The furnace body further comprises a mixing chamber. The mixing chamber is configured among the catalyst source, the hydrogen source, the carbon feedstock source and the working chamber. The mixing chamber is used for mixing the carbon feedstock, the hydrogen and the catalyst before entering the working chamber. The work piece is processed in advance by a plasma treatment, where the plasma treatment is performed by a plasma having oxygen or argon. The carbon seeds are configured on the insulated surface of the work piece.