Method for growing graphene film on surface of copper powder

• Main Authors: SHEN HANRUI, CAO HANXING, YANG JUN, MA YU, LYU XUECHAO
• Format: Patent
• Language: Chinese; English
• Published: 07.01.2022
• Subjects: CHEMICAL SURFACE TREATMENT; CHEMISTRY; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING MATERIAL WITH METALLIC MATERIAL; COATING METALLIC MATERIAL; DIFFUSION TREATMENT OF METALLIC MATERIAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL; METALLURGY; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION

The invention discloses a method for growing a graphene film on the surface of copper powder. The method for growing the graphene film on the surface of the copper powder comprises the following steps that S1, after the copper powder or a copper powder mixture is preliminarily heated to the oxidation temperature in a chemical vapor deposition furnace, pre-oxidation treatment is conducted on the copper powder; S2, after the pre-oxidation treatment is finished and the temperature in the chemical vapor deposition furnace continues to rise to the growth temperature, reduction of the surface of the copper powder and growth operation of graphene are conducted at the same time; and S3, after the growth is finished, a growth product is cooled. According to the method for growing the graphene film on the surface of the copper powder, the growing process of the graphene film on the surface of the copper powder is simplified, and the overall process efficiency is improved. Moreover, the pre-oxidation treatment is matche