▎ 摘　　要

NOVELTY - In-situ preparation method of carbon material comprises (1) adding at least a substrate and a metal-based solution in the catalytic zone of a reactor with a protective gas and let it stand until the surface of the substrate is in contact with the metal-based solution and a chemical reaction occurs to replace the catalyst, (2) controlling the catalytic reaction process, sending the substrate and the metal-based solution in the catalytic zone into the reaction zone of the reactor, and (3) at least the substrate in the reaction zone, under the action of the catalyst, carbon source and temperature, the carbon material is grown in situ on the catalyst and (4) taking out the matrix and the carbon material in the reaction zone, and repeating the above steps to continuously grow the carbon material. USE - The method is useful for In-situ preparation method of carbon material. ADVANTAGE - The method is economical and environmentally-friendly. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for continuous growth device of carbon material comprises reactor (10) comprised of reaction tube and catalytic tube (11) at least, the reaction tube (12) and catalytic tube is corresponding to the reaction zone and the catalytic zone, the first end of the reaction tube is connected with the second end of the catalytic tube, the reaction zone of the reactor includes a heater, and the heater (121) can heat the reaction zone to a high temperature higher than the cracking temperature of the carbon source. DESCRIPTION OF DRAWING(S) - The drawing shows a reactor structure for continuously preparing a carbon material in a fixed bed. 10Reactor 11Catalytic tube 12Reaction tube 20Substrate 30Barrier device 121Heater