| abstract |
process of obtaining stable aqueous dispersions of graphene, graphite and amorphous carbon, free of surfactants and using cellulose as dispersant. The present patent application relates to a method of obtaining dispersions and nanodispersions of graphite, graphene and amorphous coal in aqueous medium, which do not use any surfactant or require chemical modification of graphene, such as oxidation thereof. forming graphene oxide. The dispersing agent is cellulose used in conjunction with mechanical dispersing procedures, but dispersion can also be achieved by simple physical mixing and gentle stirring of graphite with the dispersing agent, preserving the graphene blades from any vigorous mechanical action. |