| abstract |
The present invention relates to a method for obtaining at least one particle (1) comprising the following steps: (a) preparing a solution A comprising at least one precursor of at least one element selected from the group constituted by silicon, boron, phosphorus, germanium, arsenic, aluminium, iron, titanium, zirconium, nickel, zinc, calcium, sodium, barium, potassium, magnesium, lead, silver, vanadium, tellurium, manganese, iridium, scandium, niobium, tin, cerium, beryllium, tantalum, sulfur, selenium, nitrogen, fluorine, chlorine; (b) preparing an aqueous solution B; (c) forming droplets of solution A by a first means for forming droplets; (d) forming droplets of solution B by a second means for forming droplets; (e) mixing said droplets; (f) dispersing the mixed droplets in a gas flow; (g) heating said dispersed droplets at a temperature sufficient to obtain the at least one particle (1); (h) cooling of said at least one particle (1); and (i) separating and collecting said at least one particle (1); wherein the aqueous solution may be acidic, neutral, or basic; and wherein at least one colloidal suspension comprising a plurality of nanoparticles 3 is mixed with the solution A at step (a) and/or with the solution B at step (b). The present invention also relates to a device for implementing the method. |