Scott Warren

US Patent:

8569391, Oct 29, 2013

Filed:

Jan 13, 2009

Appl. No.:

12/812714

Inventors:

Scott Warren - Washington DC, US
Ulrich Wiesner - Ithaca NY, US

Assignee:

Cornell University - Ithaca NY

International Classification:

C08F 297/02
B22F 9/24
B22F 7/02

US Classification:

521153, 521 50, 521 61, 521154, 264 44, 216 2, 977932

Abstract:

The invention provides mesostructured materials and methods of preparing mesostructured materials including metal-rich mesostructured nanoparticle-block copolymer hybrids, porous metal-nonmetal nanocomposite mesostructures, and ordered metal mesostructures with uniform pores. The nanoparticles can be metal, metal alloy, metal mixture, intermetallic, metal-carbon, metal-ceramic, semiconductor-carbon, semiconductor-ceramic, insulator-carbon or insulator-ceramic nanoparticles, or combinations thereof. A block copolymer/ligand-stabilized nanoparticle solution is cast, resulting in the formation of a metal-rich (or semiconductor-rich or insulator-rich) mesostructured nanoparticle-block copolymer hybrid. The hybrid is heated to an elevated temperature, resulting in the formation of an ordered porous nanocomposite mesostructure. A nonmetal component (e. g.