Preparation of iron or iron oxide nanoparticles

Details Preparation of iron or iron oxide nanoparticles Preparation of iron or iron oxide nanoparticles

2011-07-26

2011-07-26

Johnson, Edward M (Department: 1736)

Chemistry of inorganic compounds

Oxygen or compound thereof

Metal containing

C423S138000

Reexamination Certificate

active

07985398

ABSTRACT:
The present teachings are directed towards a thermolysis method of producing iron-containing nanoparticles by providing an iron-containing component, a colloid stabilizing component, and an amount of water. The iron-containing component, the colloid stabilizing component, and the amount of water form a mixture, which is then heated to a temperature sufficient to form iron-containing nanoparticles, which are then isolated from the mixture. Another method is also provided which involves a repetitive shell growth method of producing iron-containing nanoparticles by providing a first amount of an iron-containing component and a colloid stabilizing component; the iron-containing component and the colloid stabilizing component are then mixed and heated to a temperature sufficient to form iron-containing nanoparticles. The mixture is allowed to cool to room temperature, and an additional amount of iron-containing component is added to the mixture, which is then reheated to reaction temperature, and the process is repeated until the isolated iron-containing nanoparticles obtain the desired size.

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