MECHANOCHEMICAL PROCESS FOR THE MANUFACTURE OF NP GRAPHENE COMPOSITES OF METAL OXIDES.

摘要

The present invention discloses a process for obtaining composite materials of graphene nanoplatelets doped with different metal oxides of nanometric size. The synthesis process is performed by providing high energy milling treatments to graphite mixtures with metal oxide nanoparticles. The present invention is a novelty by possessing the ability of doping the graphite and its delamination with nanoparticles of metal oxides in a single step. Additionally, it prevents the transformation of the nanoparticles used to other polymorphs by coating with Teflon the treatment container or by using containers made entirely of Teflon. In the case of a treatment with unstable nanoparticles, is required to add at the grinding medium auxiliary liquids for reducing the impacts received by the nanoparticles in the treatment medium.