• 专利标题:   Preparing aqueous graphene used in e.g. catalyst preparation, by purifying graphite in protective atmosphere, mixing with dispersion, laser irradiating, phacoemulsifying irradiated product, shearing and centrifuging to collect supernatant.
  • 专利号:   CN111470498-A
  • 发明人:   WANG J, LI Z, LIU P, LIU C, YANG G
  • 专利权人:   UNIV SUN YATSEN
  • 国际专利分类:   C01B032/19
  • 专利详细信息:   CN111470498-A 31 Jul 2020 C01B-032/19 202066 Pages: 9 Chinese
  • 申请详细信息:   CN111470498-A CN10979593 15 Oct 2019
  • 优先权号:   CN10979593

▎ 摘  要

NOVELTY - Method for preparing aqueous graphene involves (a) purifying graphite in a protective atmosphere to obtain the first product, (b) mixing the first product with the dispersion, stirring and dispersing to obtain a second product, (c) subjecting the second product to laser irradiation under ultrasonic conditions to obtain a third product, (d) phacoemulsifying the third product and cooling to obtain a fourth product, (e) shearing and homogenizing the fourth product in sequence in a water bath environment to obtain a fifth product, and (f) centrifuging the fifth product and collecting the supernatant to obtain an aqueous graphene product. USE - The aqueous graphene product is useful in catalyst preparation, heat dissipation, heat generation, lithium ion battery or antistatic coating preparation applications (claimed). ADVANTAGE - The method has high yield of 87-95% and excellent stability.