FREMGANGSMÅDE TIL SYNTESE AF KUBISKE NANOPARTIKLER AF METAL I NÆRVÆR AF TO REDUKTIONSMIDLER

A process is described for preparing cubic metallic nanoparticles, comprising: a) preparing an aqueous solution containing a source of a metal from group VIII, a reducing agent R1 and a stabilizer; b) preparing an aqueous solution containing a source of a group VIII metal and a stabilizer at a tempe...

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Bibliographische Detailangaben
Hauptverfasser:	SANCHEZ, CLÉMENT, BOISSIERE, CÉDRIC, BISSON, LAURENT, THOMAZEAU, CÉCILE
Format:	Patent
Sprache:	dan
Schlagworte:	CASTING CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY CRACKING HYDROCARBON OILS FUELS LUBRICANTS MAKING METALLIC POWDER MANUFACTURE OF ARTICLES FROM METALLIC POWDER METALLURGY MINERAL WAXES PEAT PERFORMING OPERATIONS PETROLEUM, GAS OR COKE INDUSTRIES PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL POWDER METALLURGY PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVEHYDROGENATION, OLIGOMERISATION, POLYMERISATION RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, ORGASES REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS REFORMING OF NAPHTHA TECHNICAL GASES CONTAINING CARBON MONOXIDE THEIR RELEVANT APPARATUS TRANSPORTING WORKING METALLIC POWDER
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Beschreibung
Zusammenfassung:	A process is described for preparing cubic metallic nanoparticles, comprising: a) preparing an aqueous solution containing a source of a metal from group VIII, a reducing agent R1 and a stabilizer; b) preparing an aqueous solution containing a source of a group VIII metal and a stabilizer at a temperature strictly higher than 70° C. and less than or equal to 80° C.; c) mixing at least a portion of the aqueous solution obtained in step a) with the aqueous solution obtained in step b) to obtain, in the presence of a reducing agent R2, metallic nanoparticles in the cubic form representing at least 70% by number of the entire quantity of metallic nanoparticles which are formed; d) depositing said metallic nanoparticles derived from step c) on a support.