Title: Preparation of graphitic articles

Abstract

Graphitic structures have been prepared by exposing templates (metal, metal-coated ceramic, graphite, for example) to a gaseous mixture that includes hydrocarbons and oxygen. When the template is metal, subsequent acid treatment removes the metal to yield monoliths, hollow graphitic structures, and other products. The shapes of the coated and hollow graphitic structures mimic the shapes of the templates.

Inventors:

Phillips, Jonathan; Nemer, Martin; Weigle, John C.

Issue Date:

2010-05-11

Research Org.:

Los Alamos National Security, LLC, Los Alamos, NM (United States)

Sponsoring Org.:

USDOE

OSTI Identifier:

1176284

Patent Number(s):

7713577

Application Number:

11/364,980

Assignee:

Los Alamos National Security, LLC (Los Alamos, NM)

Patent Classifications (CPCs):

B - PERFORMING OPERATIONS B82 - NANOTECHNOLOGY B82Y - SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES

C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01B - NON-METALLIC ELEMENTS

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B - PERFORMING OPERATIONS B82 - NANOTECHNOLOGY B82Y - SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES

B82Y30/00 - Nanotechnology for materials or surface science, e.g. nanocomposites
B82Y40/00 - Manufacture or treatment of nanostructures

C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01B - NON-METALLIC ELEMENTS

C01B32/15 - Nano-sized carbon materials
C01B32/205 - Preparation

C - CHEMISTRY C04 - CEMENTS C04B - LIME, MAGNESIA

C04B14/026 - {of particular shape, e.g. nanotubes}
C04B14/4631 - {Silica}
C04B2111/00362 - {Friction materials, e.g. used as brake linings, anti-skid materials}
C04B2111/00844 - {for electronic applications}
C04B2111/00853 - {in electrochemical cells or batteries, e.g. fuel cells}
C04B2111/94 - Electrically conducting materials
C04B2235/405 - Iron group metals
C04B2235/5232 - Silica or silicates other than aluminosilicates, e.g. quartz
C04B2235/5436 - micrometer sized, i.e. from 1 to 100 micron
C04B2235/5445 - submicron sized, i.e. from 0,1 to 1 micron
C04B2235/6028 - Shaping around a core which is removed later
C04B2235/94 - Products characterised by their shape
C04B35/522 - {Graphite
C04B35/62839 - {Carbon}
C04B35/62873 - {Carbon}
C04B35/62876 - {with metals}
C04B35/62884 - {by gas phase techniques}
C04B35/62886 - {by wet chemical techniques}
C04B35/62894 - {with more than one coating layer}
C04B35/62897 - {Coatings characterised by their thickness}
C04B38/0054 - {the pores being microsized or nanosized}
C04B38/009 - {Porous or hollow ceramic granular materials, e.g. microballoons
C04B38/04 - by dissolving-out added substances
C04B38/045 - {the dissolved-out substance being a monolitic element having approximately the same dimensions as the final article, e.g. a prepreg obtained by bonding together dissolvable particles
C04B41/009 - {characterised by the material treated}
C04B41/4531 - {by C.V.D.}
C04B41/4535 - {applied as a solution, emulsion, dispersion or suspension}
C04B41/4584 - {Coating or impregnating of particulate or fibrous ceramic material
C04B41/5001 - {with carbon or carbonisable materials}
C04B41/5144 - {with a composition mainly composed of one or more of the metals of the iron group}
C04B41/52 - Multiple coating or impregnating {multiple coating or impregnating with the same composition or with compositions only differing in the concentration of the constituents, is classified as single coating or impregnation}

C - CHEMISTRY C23 - COATING METALLIC MATERIAL C23C - COATING METALLIC MATERIAL

C23C16/01 - on temporary substrates, e.g. substrates subsequently removed by etching
C23C16/26 - Deposition of carbon only

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DOE Contract Number:  

W-7405-ENG-36

Resource Type:

Patent

Country of Publication:

United States

Language:

English

Subject:

36 MATERIALS SCIENCE