• 专利标题:   Preparation of graphene nanometer belt comprises calcining carbon nanotube, adding concentrated hydraulic acid, adding alkali metal, carrying out metal fusion method or electrochemical method, filtering, washing and drying to obtain product.
  • 专利号:   CN101913599-A, CN101913599-B
  • 发明人:   WANG L, JIANG G, FAN Y
  • 专利权人:   UNIV DONGHUA
  • 国际专利分类:   C01B031/04
  • 专利详细信息:   CN101913599-A 15 Dec 2010 C01B-031/04 201133 Pages: 8 Chinese
  • 申请详细信息:   CN101913599-A CN10253257 13 Aug 2010
  • 优先权号:   CN10253257

▎ 摘  要

NOVELTY - Preparation of graphene nanometer belt comprises: (i) calcining a carbon nanotube for 1-2 hours at 300-500 degrees C in air and placing into a tubular furnace filled with argon and hydrogen, heating for 1-2 hours at 800-1000 degrees C; (ii) adding concentrated hydraulic acid (12 mol/l) to reflux for 4-5 hours at 100-300 degrees C, filtering and washing to a neutral state and drying at 70-80 degrees C; (iii) mixing an alkali metal with the tube in a mass ratio of 1-3:1, reacting with a solvent by alkaline metal fusion method or electrochemical method; (iv) filtering, washing and drying at 70-100 degrees C to obtain the product. USE - The method is useful for preparing graphene nanometer belt. ADVANTAGE - The method is simple and convenient and is suitable for large-scale production to obtain the graphene nanometer belt with smooth edges and little defects. DESCRIPTION OF DRAWING(S) - The figure shows a schematic view of the graphene nanometer belt.