• 专利标题:   Preparing graphene oxide nano-volume comprises preparing graphene oxide sponge by liquid-phase stripping method and freeze-drying method, ultrasonically dispersing in deionized water and acidifying carbon nanotubes.
  • 专利号:   CN111252760-A
  • 发明人:   WU X, YAO Y, QIN W, LU S, LI Y
  • 专利权人:   HARBIN INST TECHNOLOGY
  • 国际专利分类:   B82Y030/00, C01B032/168, C01B032/198, C01D015/06, C01D015/10, C01D005/00, C01F011/24, C01G009/04
  • 专利详细信息:   CN111252760-A 09 Jun 2020 C01B-032/198 202053 Pages: 8 Chinese
  • 申请详细信息:   CN111252760-A CN10073699 22 Jan 2020
  • 优先权号:   CN10073699

▎ 摘  要

NOVELTY - Preparing graphene oxide nano-volume comprises (i) preparing graphene oxide sponge by liquid-phase stripping method and freeze-drying method, and ultrasonically dispersing in deionized water to obtain graphene oxide dispersion liquid; and (ii) dropping on a clean substrate, placing horizontally in a device connected to a vacuum pump, and vacuuming to rapidly evaporate water under the condition of normal temperature. USE - The method is useful for preparing graphene oxide nano-volume. ADVANTAGE - The method is convenient for large-scale preparation of various products, economical, simple to operate and has high safety. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing graphene oxide nano-roll composite material, comprises (a) preparing graphene oxide sponge by liquid-phase stripping method and freeze-drying method, and ultrasonically dispersing in deionized water to obtain graphene oxide dispersion liquid, (b) acidifying the carbon nanotubes, washing with deionized water until the pH is neutral, freeze-drying, and ultrasonically dispersing in deionized water to obtain a carbon nanotube dispersion, (c) mixing the graphene oxide dispersion with the carbon nanotube dispersion and ultrasonically processing, (d) dropping on a clean substrate, placing horizontally in a device connected with a vacuum pump and vacuuming to rapidly evaporate water under normal temperature conditions.