Method of synthesizing tungsten nanoparticles

DWPI Title: Method for synthesizing tungsten nanoscale particle suspension, involves mixing tungsten precursor and reducing agent, and dispersing mixture in organic coordinating solvents
Abstract: A method to synthesize tungsten nanoparticles has been developed that enables synthesis of nanometer-scale, monodisperse particles that can be stabilized only by tetrahydrofuran. The method can be used at room temperature, is scalable, and the product concentrated by standard means. Since no additives or stabilizing surfactants are required, this method is particularly well suited for producing tungsten nanoparticles for dispersion in polymers. If complete dispersion is achieved due to the size of the nanoparticles, then the optical properties of the polymer can be largely maintained.
Use: Method for synthesizing tungsten nanoscale particle suspension, preferably tungsten halide salts of varied oxidation states that is utilized in dispersion in polymers.
Advantage: The method enables synthesizing tungsten nanoscale particle suspension with high yield, improved synthesis technique in an effective and eco-friendly manner, and enables maintaining optical properties of polymers.
Novelty: A tungsten nanoscale particle suspension synthesizing method involves mixing tungsten precursor (0.0001-0.1 M) and reducing agent (0.0001-0.1 M) to obtain a mixture. The mixture is dispersed in organic coordinating solvents to obtain a finished product, where the tungsten precursor is selected from tungsten hexacarbonyl and tungsten halide, the reducing agent is selected from lithium borohydride and lithium aluminum hydride, and the coordinating solvent is stabilizer of tungsten nanoscale particle suspension.
Filed: 5/5/2010
Application Number: US2010774212A
Tech ID: SD 11212.0
This invention was made with Government support under Contract No. DE-NA0003525 awarded by the United States Department of Energy/National Nuclear Security Administration. The Government has certain rights in the invention.
Data from Derwent World Patents Index, provided by Clarivate
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