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- TRL (Technology readiness level) -
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- Titre Nanpoparticles synthesis
- Description Nanopowders are of great interest due to their specific properties. There are various production routes but quality of the powders ie composition, size and size distribution, crystallography… may vary from one another.
- Bénéfices - Continuous process
- Homogenous and controlled composition and morphology.
- Monodisperse powders
- Sizes are smaller than 500 nm, and more particularly smaller than 100 nm.
- Nanoparticles produced in aqueous solution : no free powders to handle (but may be dried and mixed with other components on demand)
- Nouveauté The present invention relates to a method for continuously preparing mineral particles by means of the thermolysis of mineral precursors in an aqueous medium. The reactive flow (including mineral precursors) and the heat transfer flow (countercurrent) are put in contact and conveyed into a tubular reactor, inside of which particles are formed.
Control of the precursors quality as well as process parameters allow the control of the powders’ quality
The powders may also be functionalized online in the same equipment (iron oxide for medical imaging known as USPIO, for example, have been produced)
- Mots clés Continuous nanoparticles production, supercritical fluids, mineral precursor, aqueous solution
- Secteurs Chemicals, Materials & plant-based materials
