Process for the production of a suspension of nanopartu00ecculas, modified in superfu00eccie

摘要

Process for the production of a suspension of nanopartu00ecculas, modified in superfu00eccie.The invention relates to a method for the production of nanoparticles modified on the surface, crystalline and / or consolidated in a dispersant, said method comprising the following steps: (a) thermally treating a suspension of nanoparticles do not modified on the surface.Amorphous or semicristalinas a dispersant to crystallize and / or consolidate the particles; and (b) activating the suspension of nanoparticles modified on the surface not crystallized and / or adensadas in dispersant of step (a) or in other dispersant in the presence of a modifier for tension mec u00e2nica,In order to modify the surface of particles by the modifier to obtain a suspension of nanoparticles bound to surface, crystalline and / or adensadas. The dispersant may be removed from the colloid to give the corresponding powder obtained.The said method provides very dispersed particles with a mean diameter of particles smaller than 20 nm which can be provided with a surface chemistry through a simple way to the relevant application.