▎ 摘　　要

NOVELTY - Preparing three-dimensional vertical graphene comprises using hydrogen and hydrocarbons as raw materials, oxygen as etching gas, and chemical vapor deposition to obtain target height three-dimensional vertical graphene. USE - The method is useful for preparing three-dimensional vertical graphene. ADVANTAGE - The method: provides a cyclic oxygen plasma selective etching technology to trim the top structure of three-dimensional vertical graphene; reduces the intersection of the layers; and maintains the vertical shape of three-dimensional vertical graphene.