• 专利标题:   Preparation method for graphene characterized by using a heat stripping method to prepare graphene and carrying out a heat treatment as well as a milling process to lower oxygen content to 0.5 wt%, thereby obtaining a graphene.
  • 专利号:   TW201238894-A, TW474974-B1
  • 发明人:   WU Y, XIE C, CHEN J, LIN J, LIN G
  • 专利权人:   ENERAGE INC
  • 国际专利分类:   C01B031/04
  • 专利详细信息:   TW201238894-A 01 Oct 2012 C01B-031/04 201318 Pages: 0 Chinese
  • 申请详细信息:   TW201238894-A TW109949 23 Mar 2011
  • 优先权号:   TW109949

▎ 摘  要

NOVELTY - A preparation method for graphene includes: an oxidation step for oxidizing graphite material to graphite oxide; a stripping and pre-reduction step for placing the graphite oxide in vacuum, protection atmosphere, reduction atmosphere or mixture of protection atmosphere and reduction atmosphere to contact with a heat source above 300 DEG C so as to make the graphite oxide form a graphite oxide having mono-layered nano-structure; a reduction and heat treatment step for placing the graphite oxide having mono-layered nano-structure in a reduction atmosphere having heat treatment temperature to lower the oxygen content of the graphite oxide having mono-layered nano-structure to 1 wt% or less; a mechanical milling and reduction step for carrying out mechanical milling and using alkaline solution as a milling liquid to sufficiently carry out dispersion and reduction, thereby obtaining a graphene.