▎ 摘　　要

NOVELTY - Preparing two-dimensional graphene by gas phase pulverization involves heating graphite powder in crucible atmosphere at 400-1000 degrees C for 1-40 minutes, then graphite powder obtained is heated at 400-1000 degrees C in air atmosphere to maintained temperature of 1-4 degrees C until liquid nitrogen is completely vaporized in reaction vessel which contained liquid nitrogen for 40 minutes, then repeated process for 2-20 times to obtained two-dimensional graphene. USE - Method for preparing two-dimensional graphene by gas phase pulverization (claimed). ADVANTAGE - The method enables to prepare two-dimensional graphene by gas phase pulverization is uses graphite expansion at high temperature so that interlayer distance becomes larger, liquid nitrogen enters interlayer and rapidly gasified so by gas stripping method to obtain the two-dimensional graphene.