• 专利标题:   Preparation of highly oriented graphene aerogel used for battery, involves mixing graphene with water, dispersing to obtain graphene dispersion liquid, orienting solution by applied electric field and obtaining highly oriented liquid.
  • 专利号:   CN106044752-A
  • 发明人:   LIU Z, WANG Q, YANG Y, LIU Y, JIN L, CHEN X
  • 专利权人:   SPECIAL EQUIP SAFETY SUPERVISION INST JI
  • 国际专利分类:   C01B031/04, C04B038/00
  • 专利详细信息:   CN106044752-A 26 Oct 2016 C01B-031/04 201683 Pages: 7 Chinese
  • 申请详细信息:   CN106044752-A CN10362004 27 May 2016
  • 优先权号:   CN10362004

▎ 摘  要

NOVELTY - The preparation of graphene aerogel involves mixing 1 g graphene with 20-100 g water, ultrasonically dispersing to obtain graphene dispersion liquid, placing in a vessel with electrodes, orienting the solution by an applied electric field, obtaining highly oriented graphene dispersion liquid, where the frequency of the applied alternating electric field is 10-1000 Hz, obtaining highly oriented graphene dispersion liquid, continuously maintaining the role of electric field, freezing, solidifying with liquid nitrogen and carrying out lyophilization or critical lyophilization. USE - Preparation of highly oriented graphene aerogel used for battery, super capacitor electrode material, electron field emission source, heat insulation material, adsorbent material, high-throughput filtration material and catalyst carrier. ADVANTAGE - The highly oriented graphene aerogel has high porosity and has high orientation rate along the direction of the electric field. DETAILED DESCRIPTION - The preparation of graphene aerogel involves mixing 1 g graphene with 20-100 g water, ultrasonically dispersing to obtain graphene dispersion liquid, placing in a vessel with electrodes, orienting the solution for 1-100 minutes by an applied electric field, obtaining highly oriented graphene dispersion liquid, where the frequency of the applied alternating electric field is 10-1000 Hz and the intensity is 50-5000 V/m, obtaining highly oriented graphene dispersion liquid, continuously maintaining the role of electric field, freezing, solidifying with liquid nitrogen and carrying out lyophilization or critical lyophilization.