Preparation of metal nanowire decorated carbon allotropes

Patent metadata

Field	Value
Publication number	US-9475973-B2
Application number	US-201414225757-A
Country	US
Kind code	B2
Filing date	Mar 26, 2014
Priority date	Mar 6, 2006
Publication date	Oct 25, 2016
Grant date	Oct 25, 2016

Abstract

In the method of embodiments of the invention, the metal seeded carbon allotropes are reacted in solution forming zero valent metallic nanowires at the seeded sites. A polymeric passivating reagent, which selects for anisotropic growth is also used in the reaction to facilitate nanowire formation. The resulting structure resembles a porcupine, where carbon allotropes have metallic wires of nanometer dimensions that emanate from the seed sites on the carbon allotrope. These sites are populated by nanowires having approximately the same diameter as the starting nanoparticle diameter.

First claim

The invention claimed is:

1. A method of preparing a polymer composite, the method comprising:
providing a plurality of seed templates, each seed template comprising a carbon allotrope containing a plurality of metallic crystalline seeds;
reacting the plurality of seed templates in a metal salt solution with a polymeric passivating reagent to form a zero valent metallic nanowire from each crystalline seed;
recovering a plurality of metal nanowire decorated allotropes; and
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Assignees

• Nasa

Inventors

• Southward Robin E
• Delozier Donavon Mark
• Watson Kent A
• Smith Jr Joseph G
• Ghose Sayata
• Connell John W

Classifications

• C01B32/15

  Chemistry & Metallurgy · mapped topic

• C01B32/21

  Chemistry & Metallurgy · mapped topic

• C08J5/005

  Chemistry & Metallurgy · mapped topic

• B22F9/24

  Operations & Transport · mapped topic

• B22F2998/00

  Operations & Transport · mapped topic