Title:
A manufacturing method of a kind of graphene
Document Type and Number:
Japanese Patent JP6065244
Kind Code:
B2
Abstract:
A method of preparing a graphene material. The method includes: (1) preparing a liquid polyacrylonitrile (LPAN) solution, stirring the LPAN solution to yield a cyclized polyacrylonitrile solution; (2) stirring the cyclized LPAN solution at between 200 and 300°C to yield a thermally-oxidized polyacrylonitrile; (3) grinding and sieving the thermally-oxidized polyacrylonitrile, and drying a resulting product at room temperature, to yield a thermally-oxidized precursor; (4) calcining the thermally-oxidized precursor in the presence of an inert gas flow of between 10 and 500 mL/min for between 1 and 24 hrs at the temperature of between 400 and 1000°C, to yield a carbonized precursor; and (5) calcining the carbonized precursor in the presence of an inert gas flow of between 10 and 500 mL/min for between 1 and 10 hrs at the temperature of between 1000 and 3000°C, to yield a graphene material.
More Like This:
Inventors:
Liu Sword Hong
Zhang Qinling
What New
Xu firm
Super
Zhang Qinling
What New
Xu firm
Super
Application Number:
JP2015175208A
Publication Date:
January 25, 2017
Filing Date:
September 04, 2015
Export Citation:
Assignee:
Depth Ichimoto Seihoro Graphite
International Classes:
C01B32/15; C01B32/18; C01B32/182
Domestic Patent References:
| JP2013507500A | ||||
| JP2014504436A | ||||
| JP2012025653A |
Foreign References:
| CN102169985A | ||||
| US20140027678 |
Other References:
E.FiZER et al.,Optimization of Stabilization and Carbonization Treatment of PAN Fibers and Structural Characterization of the Resulting Carbon Fibers,Carbon,1986年,vol.24,No.4,p.387-395
Attorney, Agent or Firm:
Takahiro Ozaki