• 专利标题:   Preparation of graphene composite porous ceramic used in e.g. catalysis, involves adding graphene oxide in distilled water to obtain dispersion liquid, adding ceramic powder, carrying out solvothermal reaction to obtain composite material, and removing water.
  • 专利号:   CN115477547-A
  • 发明人:   LI J, LAI H, CHEN X, GE Z
  • 专利权人:   UNIV CHINA ELECTRONIC SCI TECHNOLOGY
  • 国际专利分类:   C04B035/10, C04B035/622, C04B035/63, C04B038/00
  • 专利详细信息:   CN115477547-A 16 Dec 2022 C04B-038/00 202310 Chinese
  • 申请详细信息:   CN115477547-A CN10955211 10 Aug 2022
  • 优先权号:   CN10955211

▎ 摘  要

NOVELTY - Preparation of graphene composite porous ceramic involves (s1) adding graphene oxide in distilled water, organic solvent or mixture of distilled water and organic solvent, and stirring to obtain a graphene oxide dispersion liquid, (s2) adding ceramic powder with particle size of nanometer or micron in dispersion liquid, and stirring to obtain uniform dispersion liquid, (s3) adding a dispersion liquid formed by graphene oxide and ceramic powder in high-temperature reaction kettle, and carrying out solvothermal reaction to obtain a three-dimensional graphene-ceramic composite material containing water and/or organic solvent, and (s4) removing water and/or organic solvent in the composite material, and sintering at temperature lower than the melting point of the ceramic in the composite material. USE - Preparation of graphene composite porous ceramic used in lithium-ion batteries, supercapacitor, catalysis, adsorption separation, and artificial bones. ADVANTAGE - The graphene has strong universality, adjustable porosity, and improved ceramic substrate conductivity.