Nanoparticle Synthesis Using Reversible Ionic Liquids

Tuesday, October 18, 2011: 8:30 AM
200 A (Minneapolis Convention Center)
Amy Rohan1, Emily Nixon2, Rani Jha2, Manish Talreja1, Pamela Pollet2, Charles Liotta2 and Charles Eckert1, (1)School of Chemical & Biomolecular Engineering, Georgia Institute of Technology, Atlanta, GA, (2)School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, GA

Applications of metal nanoparticles have attracted significant attention due to their shape and size dependent properties. Current methods for nanoparticle synthesis remain cost-, energy- and time-intensive. This work will present Au nanoparticle synthesis with reversible ionic liquids, formed upon the addition of CO2 to a silylated amine precursor. The resulting ion pair allows for reverse micelle formation. Heating the solution to a moderate temperature results in the reversal of the ionic liquid and the break-up of the reverse micelles, for subsequent characterization or deposition of the Au nanoparticles. Formation of metal nanoparticles without the requirement of capping agents or surfactants, sometimes in large excess, could result in significant energy and waste reduction. We have tuned a number of process parameters to demonstrate the formation of monodisperse Au nanoparticles.

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See more of this Session: Nanostructured Particles for Catalysis
See more of this Group/Topical: Particle Technology Forum