▎ 摘　　要

NOVELTY - Preparing ultra-thin layer graphene microtubules involves pre-treating raw materials, placing the micron-sized copper wire after processing in a slide rail type tubular furnace, pumping vacuum after introducing hydrogen-argon mixed gas to normal pressure, and heating at preset temperature for annealing the copper. The methane-argon mixed gas is introduced, kept for a certain growth time, the methane-argon mixed gas carbon source inlet is stopped, the sliding table device and fan are opened. The quartz tube temperature is rapidly reduced to room temperature, and the sample is taken out. USE - Method for preparing ultra-thin layer graphene microtubules (claimed). ADVANTAGE - The method enables to prepare ultra-thin layer graphene microtubules which have high uniformity and good stability. DETAILED DESCRIPTION - Preparing ultra-thin layer graphene microtubules involves pre-treating raw materials, placing the micron-sized copper wire after processing in a slide rail type tubular furnace, pumping vacuum after introducing hydrogen-argon mixed gas to normal pressure, and heating at preset temperature for annealing the copper. The methane-argon mixed gas is introduced, kept for a certain growth time, the methane-argon mixed gas carbon source inlet is stopped, the sliding table device and fan are opened. The quartz tube temperature is rapidly reduced to room temperature, and the sample is taken out to obtain the copper/graphene. The copper/graphene is immersed in the ferric chloride etching liquid to remove the copper to obtain the ultra-thin layer graphene microtubules.