skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Highly oxidized graphene oxide and methods for production thereof

Patent ·
OSTI ID:1312733

A highly oxidized form of graphene oxide and methods for production thereof are described in various embodiments of the present disclosure. In general, the methods include mixing a graphite source with a solution containing at least one oxidant and at least one protecting agent and then oxidizing the graphite source with the at least one oxidant in the presence of the at least one protecting agent to form the graphene oxide. Graphene oxide synthesized by the presently described methods is of a high structural quality that is more oxidized and maintains a higher proportion of aromatic rings and aromatic domains than does graphene oxide prepared in the absence of at least one protecting agent. Methods for reduction of graphene oxide into chemically converted graphene are also disclosed herein. The chemically converted graphene of the present disclosure is significantly more electrically conductive than is chemically converted graphene prepared from other sources of graphene oxide.

Research Organization:
Rice Univ., Houston, TX (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
FC36-05GO15073
Assignee:
WILLIAM MARSH RICE UNIVERSITY (Houston, TX)
Patent Number(s):
9,428,394
Application Number:
13/321,623
OSTI ID:
1312733
Resource Relation:
Patent File Date: 2010 May 14
Country of Publication:
United States
Language:
English

References (11)

Flexible Graphite Material of Expanded Particles Compressed Together patent October 1968
Graphite material having compressibility and recovering property and method for manufacturing the same patent March 1979
Oxidation retardant for graphite patent March 1984
Intercalation of graphite patent January 1990
Borate cross-linking solutions patent May 1994
Thin-film-like particles having skeleton constructed by carbons and isolated films patent-application February 2002
Thermally exfoliated graphite oxide patent-application April 2007
Functionalized carbon nanotubes, a process for preparing the same and their use in medicinal chemistry patent-application January 2008
Process for the Preparation of Graphene patent-application December 2010
Production Of Mechanically Exfoliated Graphene And Nanoparticle Composites Comprising Same patent-application November 2011
Improved Synthesis of Graphene Oxide journal July 2010