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1. (WO2017037396) METHOD FOR RECRYSTALLISATION OF A CARBONACEOUS MATERIAL, SUCH AS GRAPHENE OR CARBON NANOTUBES

Pub. No.:    WO/2017/037396    International Application No.:    PCT/FR2016/052173
Publication Date: Fri Mar 10 00:59:59 CET 2017 International Filing Date: Sat Sep 03 01:59:59 CEST 2016
IPC: C01B 31/02
C01B 31/04
Applicants: COMMISSARIAT À L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
Inventors: DIJON, Jean
OKUNO, Hanako
POCHET, Pascal
RAMOS, Raphael
Title: METHOD FOR RECRYSTALLISATION OF A CARBONACEOUS MATERIAL, SUCH AS GRAPHENE OR CARBON NANOTUBES
Abstract:
Method for recrystallisation of a carbonaceous material (6), such as graphene or carbon nanotubes, comprising the following successive steps: - providing a non-metallic support (1), supporting a crystallised carbonaceous material (6), - providing a reaction chamber (3), equipped with at least one gas inlet (4), - placing the non-metallic support (1) in the reaction chamber (3), - heating the carbonaceous material, under a flow of hydrogen, in the presence of a carbon source, in such a way as to form an atomic hydrogen atmosphere comprising carbonaceous species and to recrystallise the carbonaceous material (6) on the support (1). The carbonaceous material (6) is heated by at least one filament (2), arranged between the support (1) and the gas inlet (4).