• 专利标题:   Preparation of globular graphene, e.g. used as carbon microsphere for catalyst carrier, by dispersing graphene in water or alcohol, subjecting to ultrasonic treatment, granulating, and drying.
  • 专利号:   CN102515152-A, CN102515152-B
  • 发明人:   DING S, LIANG Q, KONG D, SHI H, MEI J, LV X
  • 专利权人:   SHENZHEN BTR NANO TECH CO LTD
  • 国际专利分类:   B82Y040/00, C01B031/04
  • 专利详细信息:   CN102515152-A 27 Jun 2012 C01B-031/04 201309 Pages: 9 Chinese
  • 申请详细信息:   CN102515152-A CN10439517 23 Dec 2011
  • 优先权号:   CN10439517

▎ 摘  要

NOVELTY - Preparation of a globular graphene comprises dispersing graphene in water or alcohol to obtain a concentration of 3-10 mg/mL, subjecting to ultrasonic treatment for 10 minutes to 10 hours at 1000-1800 W/cm2 and at 20-28 kHz or ball milling for 5-24 hours at 10-50 revolutions/minute, granulating, and drying; or dispersing graphene in water to obtain a concentration of 3-10 mg/mL, subjecting to dispersion for 2-5 times at 10000-40000 psi, granulating, and drying. USE - Method for the preparation of a globular graphene (claimed) used as carbon microsphere for catalyst carrier, drug transmission, lithium ion batteries, and supercapacitor. ADVANTAGE - The graphene has uniform structure, small volume, high density, good electrical conductivity, and allows convenient transportation.