1results about How to "Inhibit ripening" patented technology

The application belongs to the technical field of nanometer material preparation, and particularly relates to a single-wall carbon nanometer tube, a preparation device thereof and a preparation method thereof. The device comprises a reaction furnace, a laser generating system, a target material supply system and a control system. The laser generating system adopts a low-cost and long-life optical fiber laser array to form a large-area irradiation area; the target material supply system continuously transports a graphite composite target material doped with a specific binary metal catalyst to the irradiation area through a linear track. Under an inert atmosphere and high temperature, the optical fiber laser array is used to evaporate the composite target material containing hafnium (Hf) and iron-based transition metals, carbon atoms are catalytically induced to self-assemble, and single-wall carbon nanometer tubes are continuously grown. Through the cooperation of the low-cost laser source, the hafnium-based catalyst and the continuous feeding system, the problems of expensive equipment, low yield, difficult tube diameter control and intermittent production of the traditional laser method are solved, and the low-cost, large-batch and continuous preparation of high-quality single-wall carbon nanometer tubes is realized.