Methods of forming nanoparticles

Details Methods of forming nanoparticles Methods of forming nanoparticles

C - Chemistry, Metallurgy

01

G

C01G 17/00 (2006.01) C01B 33/02 (2006.01) C01G 19/00 (2006.01) C01G 21/00 (2006.01)

Patent

CA 2662006

The present invention provides a method for preparing nanoparticles of group IV elements, particularly nanoparticles of Si, Ge and Sn, and binary and ternary alloys of these elements. The method comprises the solution-phase decomposition of one or more group IV metal precursors at elevated temperature and under an inert atmosphere at atmospheric pressure, using a decomposition-promoting reagent. A surface-bonding agent is added to the reaction mixture to form an organic layer surrounding the nanoparticles and prevent aggregation.

La présente invention concerne un procédé de préparation de nanoparticules d'éléments du groupe IV, notamment de nanoparticules de Si, Ge et Sn, et d'alliages binaires ou ternaires de ces éléments. Le procédé comprend la décomposition en phase de solution d'un ou de plusieurs précurseurs de métaux du groupe IV à température élevée et sous atmosphère inerte à pression atmosphérique, en utilisant un réactif favorisant la décomposition. Un agent de liaison de surface est ajouté au mélange réactionnel afin de former une couche organique entourant les nanoparticules et empêchant l'agrégation.

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