production process of stable aqueous dispersions of graphene, graphite and amorphous carbon, using cellulose as dispersant and conductive coatings obtained with these dispersions

摘要

production process of stable aqueous dispersions of graphene, graphite and amorphous carbon, using cellulose as dispersant and conductive coatings obtained with these dispersions, the present invention relates to a process of obtaining dispersions and nanodispersions of graphite, graphene and amorphous carbon in aqueous medium, which does not use any surfactant nor does it require the chemical modification of graphene, for example, its oxidation to form graphene oxide. the dispersing agent is the cellulose used in conjunction with mechanical dispersion procedures, but it is also possible to obtain the dispersion by simple physical mixing and mild agitation of graphite with the dispersing medium, preserving the graphene sheets from any vigorous mechanical action.