▎ 摘　　要

NOVELTY - Producing solid graphene based on 3D printing metal foam comprises adopting computer designed metal foam three-dimensional digital model, laying a layer of metal powder, preheating, electron beam scanning the melted powder layer in adhesion with loose particles so as to produce cross-sectional member forming layer, laying a fresh layer of powder, hot blasting the metal particles, carrying out chemical vapor deposition to grow graphene on the resulting metal foam; and etching the foam metal substrate using an etching solution to obtain graphene three-dimensional structure. USE - The method is useful for producing solid graphene based on 3D printing metal foam (claimed). ADVANTAGE - The method solves the problem of waste material generation, complex process and low accuracy. DETAILED DESCRIPTION - Producing solid graphene based on 3D printing metal foam comprises (i) adopting computer designed metal foam three-dimensional digital model; (ii) in a vacuum or an argon atmosphere, and laying a layer of metal powder on the stainless steel substrate by dusting mechanism; (iii) in a vacuum or an argon atmosphere, preheating the powder layer, so as to reach the calcining degree; (iv) in a vacuum or an argon atmosphere, electron beam scanning the melted powder layer in adhesion with loose particles so as to produce cross-sectional member forming layer; (v) in a vacuum or an argon atmosphere, reducing the table layer height, and laying a fresh layer of powder; (vi) sequentially repeating steps (ii), (iii), (iv) and (v) to form a bulk metal foam; (vii) shot blasting the metal particles, to remove excess powder adhered on the forming member; (viii) carrying out chemical vapor deposition to grow graphene on the resulting metal foam; and (ix) etching the foam metal substrate using an etching solution to obtain graphene three-dimensional structure.