• 专利标题:   Preparing nitrogen-doped graphene-carbonized fiber composite sponge, by washing and drying natural cotton, mixing with urea solution in mold, freeze-drying, heating in tube furnace and cooling to room temperature.
  • 专利号:   CN110627053-A
  • 发明人:   SHI J
  • 专利权人:   SHI J
  • 国际专利分类:   C01B032/194, D01F009/16
  • 专利详细信息:   CN110627053-A 31 Dec 2019 C01B-032/194 202008 Pages: 4 Chinese
  • 申请详细信息:   CN110627053-A CN10648942 22 Jun 2018
  • 优先权号:   CN10648942

▎ 摘  要

NOVELTY - Method for preparing nitrogen-doped graphene-carbonized fiber composite sponge, involves (i) preparing experimental materials and instruments, (ii) washing and drying natural cotton, mixing with urea solution in a mold, and freeze-drying to obtain cotton-urea block, and (ii) heating the block in a tube furnace at 600 degrees C at a rate of 1 degrees C/minute for 1 hour, increasing the temperature at a rate of 900 degrees C for 1 hour, and cooling to room temperature. USE - The method is useful for preparing nitrogen-doped graphene-carbonized fiber composite sponge. ADVANTAGE - The method improves the strength of the graphene sponge.