Process for the synthesis of nanosize metal-containing...

Details Process for the synthesis of nanosize metal-containing... Process for the synthesis of nanosize metal-containing...

C - Chemistry, Metallurgy

30

B

C30B 7/00 (2006.01) C30B 29/40 (2006.01) C30B 29/46 (2006.01) C30B 29/60 (2006.01)

Patent

CA 2669883

The invention relates to a process for producing morphologically uniform and virtually monodisperse metal-containing nanoparticles, characterized in that the separation both in time and space of the nucleation and growth processes is achieved by regulation of the temperature and volume flows, with the reaction and particle formation preferably being initiated and carried out in a suitable microstructured modular reactor system. Modularization of the microreaction plant (micro heat exchanger, residence reactor, micromixer, etc.) allows optimal setting of the respective chemical and process-engineering process parameters and thus the preparation of virtually monodisperse and morphologically uniform nanoparticles.

L'invention concerne un procédé de fabrication de nanoparticules contenant des métaux, à répartition pratiquement unimodale et morphologie uniforme, caractérisé en ce que l'on obtient une séparation temporelle et spatiale des processus de germination et de croissance des grains par une régulation de la température et de l'écoulement volumique. La réaction et la formation des particules sont amorcées et conduites de préférence dans un système à réacteur modulaire microstructuré approprié. La modularisation de l'installation technique de microréaction (microéchangeur de chaleur, réacteur à temps de séjour, micromélangeur, etc.) permet un réglage optimal des différents paramètres chimiques et techniques du processus et donc la fabrication de nanoparticules à répartition pratiquement unimodale et morphologie uniforme.

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