METHOD FOR PREPARING A PULVERULENT MATERIAL COMPRISING GRAFTED NANOSTRUCTURES AND ASSOCIATED PULVERULENT MATERIAL

This method comprises the following steps: - feeding at least one fuel gas through a torch (22) to generate a flame (24) at the outlet of the torch (22); - arranging a substrate (90) facing and away from the outlet of the torch (22), the flame (24) coming into contact with the substrate (90); - inje...

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Bibliographische Detailangaben
Hauptverfasser:	DONNET, JEAN-BAPTISTE, OULANTI, HANAÉ, LE HUU, THANG
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TOSURFACES, IN GENERAL SPRAYING OR ATOMISING IN GENERAL THEIR RELEVANT APPARATUS TRANSPORTING
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Beschreibung
Zusammenfassung:	This method comprises the following steps: - feeding at least one fuel gas through a torch (22) to generate a flame (24) at the outlet of the torch (22); - arranging a substrate (90) facing and away from the outlet of the torch (22), the flame (24) coming into contact with the substrate (90); - injecting a dispersed material into the flame (24); - growth of nanostructures in the flame (24). The dispersed material is formed from solid particles containing oxygen, at least a portion of the nanostructures formed in the flame (24) being grafted to the surface of the particles. Ce procédé comprend les étapes suivantes : - amenée d'au moins un gaz combustible à travers une torche (22) pour engendrer une flamme (24) à la sortie de la torche (22); - disposition d'un substrat (90) en regard et à l'écart de la sortie de la torche (22), la flamme (24) entrant en contact avec le substrat (90); - injection d'un matériau dispersé dans la flamme (24); - croissance de nanostructures dans la flamme (24). Le matériau dispersé est formé de particules solides contenant de l'oxygène, au moins une partie des nanostructures formées dans la flamme (24) étant greffées à la surface des particules.