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Graphene solution

Référence

01564-01

Statut des brevets

French patent application FR0705803 filed August 9th, 2007 entitled “Solution de graphène”

Inventeurs

Alain PENICAUD
Philippe POULIN
Christina VALLES

Statut commercial

Exclusive or non-exclusive licenses

Laboratoire

CRPP, France, www.crpp.fr

Description

CONTEXT

Graphene, a one-atom thick layer of graphite is the ultimate nanoelectronics component. First studied in 2004, it has outstanding electrical and mechanical properties, such as carbon nanotubes, with the added advantage of a pure and cheap starting material (graphite). Graphene solutions and dispersions are now actively researched in order to be able to process graphene into composites and deposits.

TECHNICAL DESCRIPTION

Some references present the solubilisation of graphene essentially by functionalization of graphite (Chakraborty et al) or reduction of graphite oxide (Niyogi, S. et al) Theses methods present the drawback of providing functionalized graphene sheets.
This invention is a simple and cheap production method of graphene sheets  by reduction of graphite  Such graphene solution would allow deposition of graphene sheet on substrate to produce graphene films or composite by impregnation of those films.

BENEFITS

No surfactant, no ultra sound (CNT damages), no surface functionnalization.

INDUSTRIAL APPLICATIONS

  • Preparation of compounds, films,
    Sensor,
    Nanoelectronics.

DEVELOPMENT STAGE

Solutions are available.

For further information, please contact us (Ref 01564-01)

 


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