Preparation of graphene by mechanically thinning graphite materials

The invention relates to a method for producing a dispersion of graphene particles or flakes in a liquid medium L, including the following steps: (a) providing a bar or block (5) of solid graphite material M; (b) rubbing said material M against the surface S (2) of a substrate so as to create a rubb...

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Bibliographic Details
Main Authors ROMERO THIERRY, ERSEN OVIDIU, BERNHARDT PIERRE, LEDOUX MARC, PHAM-HUU CUONG, JANOWSKA IZABELA, BEGIN DOMINIQUE, CHIZARI KAMBIZ
Format Patent
LanguageChinese
English
Published 10.10.2012
Subjects
CHEMISTRY
COMPOUNDS THEREOF
INORGANIC CHEMISTRY
MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES
METALLURGY
NANOTECHNOLOGY
NON-METALLIC ELEMENTS
PERFORMING OPERATIONS
SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES
TRANSPORTING
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Summary:The invention relates to a method for producing a dispersion of graphene particles or flakes in a liquid medium L, including the following steps: (a) providing a bar or block (5) of solid graphite material M; (b) rubbing said material M against the surface S (2) of a substrate so as to create a rubbing trace of said material M on said surface S (2) of said substrate; (c) dipping said substrate in a liquid medium L (6) and subjecting said liquid medium L (6) to ultrasounds so as to obtain a dispersion of graphene particles or flakes in said liquid medium L (6), wherein steps (b) and (c) can be carried out at least partially in series, or at the same time.
Bibliography:Application Number: CN2010859482