Jennifer L Dysart

US Patent:

20130177756, Jul 11, 2013

Filed:

Mar 5, 2013

Appl. No.:

13/784942

Inventors:

Justin C. Lytle - Alexandria VA, US
Jeffrey W. Long - Alexandria VA, US
Amanda June Barrow - Millville NJ, US
Matthew Paul Saunders - Clifton Park NY, US
Debra R. Rolison - Arlington VA, US
Jennifer L. Dysart - Arlington VA, US

Assignee:

The Government of the United States of America, as represented by the Secretary of the Navy - Washington DC

International Classification:

H01B 1/04

US Classification:

428221

Abstract:

A carbon nanofoam composite (such as carbon nanofoam paper) includes a carbon foam of interconnected pores of 10-2000 nm in size with nanometric carbon walls having a thickness on the order of 20 nm. In embodiments, the carbon nanofoam composite has electronic conductivity of greater than 20 S/cm and optionally at least 100 S/cm.

US Patent:

20100189991, Jul 29, 2010

Filed:

Nov 17, 2009

Appl. No.:

12/620541

Inventors:

Justin C. Lytle - Alexandria VA, US
Jeffrey W. Long - Alexandria VA, US
Amanda June Barrow - Arlington VA, US
Matthew Paul Saunders - Ithaca NY, US
Debra R. Rolison - Arlington VA, US
Jennifer L. Dysart - Arlington VA, US

International Classification:

B32B 3/26
B05D 3/02

US Classification:

4283155, 427227, 4273855

Abstract:

A method is disclosed to fabricate carbon foams comprising a bicontinuous network of disordered or irregular macropores that are three-dimensionally interconnected via nanoscopic carbon walls. The method accounts for (1) the importance of wetting (i.e., matching the surface energies of fiber to sol) and (2) the viscosity of the microheterogeneous fluid filling the voids in the carbon paper. Carbon fiber papers are mildly oxidized by plasma etching, which greatly enhances the uniform uptake of resorcinol-formaldehyde (RF) mixtures. The RF solutions are oligomerized prior to infiltration and are cured into continuous polymeric webs that hang supported between adjacent carbon fibers; the polymer-fiber composites are pyrolyzed and retain a sponge-like morphology with 10-1000-nm pores and integrated electronic pathways