• 专利标题:   Preparing coating layer state controllable yttrium oxide nano-crystal coated graphene material involves firstly graphene material with different volume fractions is acid-washed to remove impurities, graphene material into mixing uniformly to obtain mixed solution, heating and stirring mixed solution.
  • 专利号:   CN115974062-A
  • 发明人:   TANG B, ZHOU X, WAN J, LI J, YAN Q, CHEN B
  • 专利权人:   UNIV NORTHWESTERN POLYTECHNICAL
  • 国际专利分类:   C01B032/194, C01F017/10, C01F017/218
  • 专利详细信息:   CN115974062-A 18 Apr 2023 C01B-032/194 202342 Chinese
  • 申请详细信息:   CN115974062-A CN11315534 26 Oct 2022
  • 优先权号:   CN11315534

▎ 摘  要

NOVELTY - Preparing a coating layer state controllable yttrium oxide nano-crystal coated graphene material involves (1) firstly the graphene material with different volume fractions is acid-washed to remove impurities, and a certain amount of hydrogen is adsorbed on the surface of the graphene ions or hydroxyl groups and then prepare a certain concentration of Y3+solution according to the degree of yttrium oxide coating required, preparing Y3+solution with a certain concentration, and graphene the material into the mixing uniformly to obtain the mixed solution, then heating and stirring the mixed solution, further accelerating precipitation phase precipitation and crystallization, and obtaining yttrium oxide nanocrystal coated of graphene powder material. USE - Method for preparing a coating layer state controllable yttrium oxide nano-crystal coated graphene material. ADVANTAGE - The nano-crystal coated graphene material has a controllable prepared Yttrium oxide coating state, realizes comprehensive coating and local coating, does not introduce other impurities, has high thermal stability, and well protects the structure of graphene.