Process for making surfactant capped nanocrystals
AssigneeThe Regents of the University of California
InventorsA Paul Alivisatos, Joerg Rockenberger
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Abstract
Disclosed is a process for making surfactant capped nanocrystals of transition metal oxides. The process comprises reacting a metal cupferron complex of the formula M Cup, wherein M is a transition metal, and Cup is a cupferron, with a coordinating surfactant, the reaction being conducted at a temperature ranging from about 250 to about 300 C., for a period of time sufficient to complete the reaction.
Claims14
A process for making surfactant capped nanocrystals of transition metal oxides which comprises injecting a solution of a metal cupferron complex of the formula M Cup, wherein M is selected from the group consisting of Fe, Mn, and Cu, and Cup is N-nitroso-phenyl hydroxylamine, into an amine based coordinating surfactant, the injection reaction being conducted at a temperature ranging from about 250 to about 300° C., for a period of time sufficient to complete the reaction.
A process for making surfactant capped nanocrystals of transition metal oxides which comprises injecting a solution of a metal cupferron complex of the formula M Cup, wherein M is a transition metal, and Cup is a cupferron, into an amine based coordinating surfactant, said reaction being conducted at a temperature ranging from about 250 to about 300° C., for a period of time sufficient to complete the reaction.
A crystalline surfactant capped transition metal oxide nanocrystal ranging from about 4 to about 10 nm in diameter.
A process for making surfactant capped nanocrystals of transition metal oxides which comprises injecting a solution of a metal cupferron complex of the formula M Cup, wherein M is selected from the group consisting of Fe, Mn, and Cu, and Cup is N-nitroso-phenyl hydroxylamine, into a coordinating surfactant, the injection reaction being conducted at a temperature ranging from about 250 to about 300° C., for a period of time sufficient to complete the reaction.
Dependencies are inferred from the claim text.