a method for generating oxidic nanoparticles from a material forming oxide particles , comprising the steps of : preparation of an aqueous solution containing ions of the material forming the oxide particles , film evaporation of the solution at a temperature above 200 ° c ., and skimming off the nanoparticles floating on the surface of the aqueous solution generated in the vicinity of the vapour film on film evaporation . a device for performing the method is also provided .