Functionalization of carbon nanotubes

Chemistry of inorganic compounds – Carbon or compound thereof – Elemental carbon

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C423S447200, C423S460000, C977S745000, C977S748000

Reexamination Certificate

active

07807127

ABSTRACT:
The present invention relates to a carbon nanotube that contains nitrogen based functional groups (such as nitro, nitroso, N-oxide, oxime, hydroxylamine, diazo, azo, and azide) that are covalently attached to lattice carbons of the carbon nanotube, directly or via a chemical linker. The present invention also relates to methods for the preparation of the carbon nanotube from an amino-functionalized carbon nanotube via an amino oxidation reaction. The synthetic methods of the present invention allow the nitrogen based functional groups to be attached selectively to one of two distinct regions of the carbon nanotube, the ends or the sidewall, and thus enable the synthesis of a carbon nanotube having nitrogen based functional groups substantially concentrated on either the ends or the sidewall of the carbon nanotube.

REFERENCES:
patent: 6872681 (2005-03-01), Niu et al.
patent: 6875412 (2005-04-01), Margrave et al.
patent: 2004/0202603 (2004-10-01), Fischer et al.
patent: 2004/0223900 (2004-11-01), Khabashesku et al.
patent: 2005/0214196 (2005-09-01), Ohashi et al.
patent: 2005/0255030 (2005-11-01), Tour et al.
E. Pretsch, P. Buhlmann, C. Affolter. Stucture Determination of Organic Compounds, Springer, 2000, p. 268-279.
U.S. Appl. No. 11/417,292, filed Apr. 14, 2006, Forohar, et al.
U.S. Appl. No. 11/417,291, filed Apr. 14, 2005, Forohar, et al.
Long and Yang, “Carbon Nanotubes as a Superior Sorbent for Nitrogen Oxides”, Ind. Eng. Chem Res. 2001, 40:4288-4291.
Ellison, et al., “Adsorption of NH3 and NO2 on Single-Walled Carbon Nanotubes”, J.Phys. Chem. B. 2004, 108:7938-7943.
Gromov, et al., “Covalent Amino-Functionaliztion of Single Wall Carbn Nanotubes”, J.Miller. Chem. 2005, 15:3334-3339.
Wang, et al., “Electrochemical Nitration of Single-Wall Carbon Nanotubes”, Chem. Phys. Lett. 2005, 407:68-72.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Functionalization of carbon nanotubes does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Functionalization of carbon nanotubes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Functionalization of carbon nanotubes will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-4228825

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.