Dissolution of graphite, graphite and graphene nanoribbons in superacid solutions and manipulation thereof

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United States of America Patent

PATENT NO 9534319
APP PUB NO 20120063988A1
SERIAL NO

13202352

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Abstract

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Methods for dissolving carbon materials such as, for example, graphite, graphite oxide, oxidized graphene nanoribbons and reduced graphene nanoribbons in a solvent containing at least one superacid are described herein. Both isotropic and liquid crystalline solutions can be produced, depending on the concentration of the carbon material The superacid solutions can be formed into articles such as, for example, fibers and films, mixed with other materials such as, for example, polymers, or used for functionalization of the carbon material. The superacid results in exfoliation of the carbon material to produce individual particles of the carbon material. In some embodiments, graphite or graphite oxide is dissolved in a solvent containing at least one superacid to form graphene or graphene oxide, which can be subsequently isolated. In some embodiments, liquid crystalline solutions of oxidized graphene nanoribbons in water are also described.

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Patent Owner(s)

Patent OwnerAddress
WILLIAM MARSH RICE UNIVERSITY6100 MAIN STREET HOUSTON TX 77005

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Behabtu, Natnael Wilmington, US 52 210
Duque, Amanda Los Alamos, US 1 16
Green, Micah J Lubbock, US 19 218
Kosynkin, Dmitry V Dhahran, SA 11 249
Lomeda, Jay R Los Alamos, US 9 76
Parra-Vasquez, A Nicholas Bordeaux, FR 2 16
Pasquali, Matteo Houston, US 25 229
Tour, James M Bellaire, US 171 2263
Young, Colin Houston, US 17 155

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