| abstract |
The invention relates to a method for coating nanoparticles with graphene, comprising the steps: (a) providing a suspension, comprising a suspension medium and nanoparticles having a positive surface charge; (b) adding graphene oxide particles to the suspension from step (a), wherein the graphene oxide particles deposit on the nanoparticles; and (c) converting the graphene oxide particles deposited on the nanoparticles into graphene, nanoparticles coated with graphene, containing at least one metal, a metalloid, a metal compound and/or a metalloid compound. The invention further relates to the use of said graphene-coated nanoparticles in electrochemical cells and super capacitors, and to super capacitors and electrochemical cells containing said nanoparticles. |