Title: Covalently functionalized carbon nanostructures and methods for their separation

Abstract

The present invention is directed to carbon nanostructures, e.g., carbon nanotubes, methods of covalently functionalizing carbon nanostructures, and methods of separating and isolating covalently functionalized carbon. In some embodiments, carbon nanotubes are reacted with alkylating agents to provide water soluble covalently functionalized carbon nanotubes. In other embodiments, carbon nanotubes are reacted with a thermally-responsive agent and exposed to light in order to separate carbon nanotubes of a specific chirality from a mixture of carbon nanotubes.

Inventors:

Wang, YuHuang; Brozena, Alexandra H; Deng, Shunliu; Zhang, Yin

Issue Date:

Tue Mar 17 00:00:00 EDT 2015

Research Org.:

Univ. of Maryland, College Park, MD (United States)

Sponsoring Org.:

USDOE

OSTI Identifier:

1172758

Patent Number(s):

8980216

Application Number:

13/439,029

Assignee:

University of Maryland, College Park (College Park, MD)

Patent Classifications (CPCs):

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

C - CHEMISTRY C07 - ORGANIC CHEMISTRY C07C - ACYCLIC OR CARBOCYCLIC COMPOUNDS

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

B82Y40/00 - Manufacture or treatment of nanostructures

C - CHEMISTRY C07 - ORGANIC CHEMISTRY C07C - ACYCLIC OR CARBOCYCLIC COMPOUNDS

C07C51/353 - by isomerisation
C07C57/40 - containing condensed ring systems

C - CHEMISTRY C07 - ORGANIC CHEMISTRY C07H - SUGARS

C07H1/00 - Processes for the preparation of sugar derivatives

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10S - TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS

Y10S977/745 - having a modified surface
Y10S977/748 - Modified with atoms or molecules bonded to the surface
Y10S977/847 - Surface modifications, e.g. functionalization, coating

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DOE Contract Number:  

SC0001160

Resource Type:

Patent

Resource Relation:

Patent File Date: 2012 Apr 04

Country of Publication:

United States

Language:

English

Subject:

77 NANOSCIENCE AND NANOTECHNOLOGY