A Single-Pot Method for the Synthesis of Mono-Disperse Core-Shell Nanoparticles

Description:

Reference #:  00962

The University of South Carolina is offering licensing opportunities for a scalable, one-step method for the synthesis of monodisperse core-shell bimetallic nanoparticles. This method provides a practical synthesis technique for bimetallic nanoparticles by simplifying the preparation procedure.

Invention Description:

For the first time, this technology offers a scalable, single pot method for synthesizing CoCu core-shell nanoparticles. The shell obtained from this method is composed of a solid solution of Cu in Co.  Furthermore, this method allows the user to tune the synthesis parameters, such as temperature and precursor concentrations, to control nanoparticle size, composition and structure.

Advantages and Benefits:

·      Is a scalable, single pot, one-step method

·      Forms core-shell nanoparticles with narrow size-distributions

·      More catalytically active towards NaBH4 than comparable catalysts reported in the literature

Potential Applications:

This method has wide-ranging uses in fields such as heterogeneous catalysis, magnetic sensing and recording, and biological imaging.

 

Background:

Due to their extraordinary properties, nanoparticles have attracted attention in fields as diverse as catalysis, magnetics, and optics. Over the past two decades, the effects of particle size, crystal plane orientations, and surface defects on catalytic performances have all been investigated on single component catalysts. Recently, interest has shifted toward bimetallic catalyst systems because they have the potential to enhance catalytic activity or even create bi-functional surfaces capable of propagating chemical reactions that are technically challenging.  Among bi-metallic nanoparticles, core-shell nanoparticles have shown superior catalytic activity. However, the traditional preparation procedure for bi-metallic nanoparticles is complex and raises a barrier to practical application.

Patent Information:
Title App Type Country Serial No. Patent No. File Date Issued Date Expire Date Patent Status
One-Step Synthesis of Monodisperse Transition Metal Core-Shell Nanoparticles with Solid Solution Shells Utility United States 13/855,349 9,205,410 4/2/2013 12/8/2015    
For Information, Contact:
Technology Commercialization
University of South Carolina
technology@sc.edu
Inventors:
Jochen Lauterbach
Jason Hattrick-Simpers
Cun Wen
Keywords:
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