• 专利标题:   Producing single layer graphene involves adding concentrated sulfuric acid into automatic feeding unit, and then adding phosphorus pentoxide and graphite powder with stirring.
  • 专利号:   CN104925801-A, CN104925801-B
  • 发明人:   PAN D, QIAN F, SHI J, WANG F, WU C, ZHONG C
  • 专利权人:   QINGDAO HUAGAO INK ENE TECHNOLOGY CO LTD
  • 国际专利分类:   C01B031/04
  • 专利详细信息:   CN104925801-A 23 Sep 2015 C01B-031/04 201613 Pages: 8 Chinese
  • 申请详细信息:   CN104925801-A CN10391661 06 Jul 2015
  • 优先权号:   CN10391661

▎ 摘  要

NOVELTY - Single layer graphene production involves adding 98% concentrated sulfuric acid into automatic feeding unit at 80 degrees C, and then adding phosphorus pentoxide and graphite powder with stirring for 6 hours. The resulting reaction material is washed by centrifugation, where the washing waste liquid is placed into waste water treatment unit. The result material is placed into automatic feeding unit with 98% concentrated sulfuric acid at 0 degrees C, where the resulting mixture is dried into reactor unit including potassium permanganate. USE - Method for producing single layer graphene (claimed). ADVANTAGE - The method produces the single layer graphene in a simple, cost-effective and eco-friendly manner. DETAILED DESCRIPTION - Single layer graphene production involves adding 98% concentrated sulfuric acid into automatic feeding unit at 80 degrees C, and then adding phosphorus pentoxide and graphite powder with stirring for 6 hours. The resulting reaction material is washed by centrifugation, where the washing waste liquid is placed into waste water treatment unit. The result material is placed into automatic feeding unit with 98% concentrated sulfuric acid at 0 degrees C, where the resulting mixture is dried into reactor unit including potassium permanganate. The graphene oxide powder is placed into thermal reduction unit at 700-800 degrees C to form graphene powder. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic flowchart of the single layer graphene production method. (Drawing includes non-English language text).