The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 03, 2017
Filed:
Feb. 19, 2010
James M. Tour, Bellaire, TX (US);
Matteo Pasquali, Houston, TX (US);
Natnael Behabtu, Wilmington, DE (US);
Jay R. Lomeda, Los Alamos, NM (US);
Dmitry V. Kosynkin, Dhahran, SA;
Amanda Duque, Los Alamos, NM (US);
Micah J. Green, Lubbock, TX (US);
A. Nicholas Parra-vasquez, Bordeaux, FR;
Colin Young, Houston, TX (US);
James M. Tour, Bellaire, TX (US);
Matteo Pasquali, Houston, TX (US);
Natnael Behabtu, Wilmington, DE (US);
Jay R. Lomeda, Los Alamos, NM (US);
Dmitry V. Kosynkin, Dhahran, SA;
Amanda Duque, Los Alamos, NM (US);
Micah J. Green, Lubbock, TX (US);
A. Nicholas Parra-Vasquez, Bordeaux, FR;
Colin Young, Houston, TX (US);
WILLIAM MARSH RICE UNIVERSITY, Houston, TX (US);
Abstract
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.