• 专利标题:   Apparatus, used to produce graphene or its oxide, comprises first electrode with graphite, second electrode, container containing electrolyte, in which the electrodes are immersed, power supply to supply bias voltages and filtration module.
  • 专利号:   US2013161199-A1, TW201326035-A, TW522314-B1
  • 发明人:   LI L, SU C, LIN C, WU F, LI L J, SU C Y, LIN C T
  • 专利权人:   ACAD SINICA, ACAD SINICA
  • 国际专利分类:   C25B001/00, C01B031/04
  • 专利详细信息:   US2013161199-A1 27 Jun 2013 C25B-001/00 201344 Pages: 17 English
  • 申请详细信息:   US2013161199-A1 US716721 17 Dec 2012
  • 优先权号:   TW148453

▎ 摘  要

NOVELTY - Apparatus comprises: a first electrode (102) that includes graphite; a second electrode (104); a container (108) containing an electrolyte (106), in which the first and second electrodes are immersed in the electrolyte; a power supply to supply bias voltages across the first and second electrodes to cause intercalation of graphite and exfoliation of graphene; and a filtration module to separate the graphene from un-exfoliated graphite particles and collect the graphene. USE - The apparatus is useful for producing at least one of graphene or graphene oxide (claimed). ADVANTAGE - The apparatus provides high-quality graphene and graphene oxide in a simple, continuous and fast manner at a low cost, using electrochemical exfoliation. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for producing graphene, comprising: immersing the first and second electrodes in the electrolyte; applying a first voltage across the first and second electrodes to cause intercalation of the graphite to form a graphite intercalation compound; applying a second voltage across the first and second electrodes to exfoliate the graphite intercalation compound to produce at least one of graphene or graphene oxide; filtering the electrolyte using a first filter that blocks un-exfoliated graphite particles and allows the graphene or graphene oxide to pass through; and filtering the electrolyte using a second filter to collect the graphene or graphene oxide. DESCRIPTION OF DRAWING(S) - The figure shows an apparatus for producing graphene and graphene oxide. First electrode (102) Second electrode (104) Electrolyte (106) Container (108) Rotor (110)