IP Library Granted Patent US 8,066,964
Granted Patent B2
US 8,066,964 · App. 12/791,190 · Granted Nov 29, 2011

Thermally exfoliated graphite oxide

Assignee: The Trustees of Princeton University
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Quick Facts
Patent No.
US 8,066,964
App. No.
12/791,190
Granted
Nov 29, 2011
Kind
B2
Abstract

A modified graphite oxide material contains a thermally exfoliated graphite oxide with a surface area of from about 300 m 2 /g to 2600 m 2 /g, wherein the thermally exfoliated graphite oxide displays no signature of the original graphite and/or graphite oxide, as determined by X-ray diffraction.

Claims (16)

1. A modified graphite oxide material, comprising:

a thermally exfoliated graphite oxide (TEGO) having a surface area of from about 500 m 2 /g to about 2600 m 2 /g,

wherein the thermally exfoliated graphite oxide has an X-ray diffraction pattern in which an area under a diffraction peak between 2θ=12.5 and 14.5° is less than 15 percent of a total area under a diffraction peak between 2θ=9 and 21°.

2. The modified graphite oxide material as claimed in claim 1 , wherein said TEGO has a bulk density of from about 40 kg/m 3 to 0.1 kg/m 3 .

3. The modified graphite oxide material as claimed in claim 1 , wherein said TEGO has a C/O ratio of from about 60/40 to 95/5.

4. The modified graphite oxide material as claimed in claim 3 , wherein said TEGO has a C/O ratio of from about 65/35 to 95/5.

5. The modified graphite oxide material as claimed in claim 4 , wherein said TEGO has a C/O ratio of from about 65/35 to 90/10.

6. The modified graphite oxide material as claimed in claim 5 , wherein said TEGO has a C/O ratio of from 65/35 to 85/15.

7. The modified graphite oxide material as claimed in claim 6 , wherein said TEGO has a C/O ratio of from 70/30 to 85/15.

8. The modified graphite oxide material as claimed in claim 7 , wherein said TEGO has a C/O ratio of from 70/30 to 80/20.

9. The modified graphite oxide material as claimed in claim 1 , wherein the thermally exfoliated graphite oxide has a surface area of from 500 m 2 /g to 2600 m 2 /g.

10. The modified graphite oxide material as claimed in claim 1 , wherein the thermally exfoliated graphite oxide has a surface area of from 600 m 2 /g to 2600 m 2 /g.

11. The modified graphite oxide material as claimed in claim 1 , wherein the thermally exfoliated graphite oxide has a surface area of from 700 m 2 /g to 2600 m 2 /g.

12. The modified graphite oxide material as claimed in claim 1 , wherein the thermally exfoliated graphite oxide has a surface area of from 800 m 2 /g to 2600 m 2 /g.

13. The modified graphite oxide material as claimed in claim 1 , wherein the thermally exfoliated graphite oxide has a surface area of from 900 m 2 /g to 2600 m 2 /g.

14. The modified graphite oxide material as claimed in claim 1 , wherein said thermally exfoliated graphite oxide displays no signature of graphite and/or graphite oxide, as determined by X-ray diffraction.

Assignments (2)
CONFIRMATORY LICENSE Recorded Dec 23, 2011
From: PRINCETON UNIVERSITY
To: NATIONAL SCIENCE FOUNDATION
Reel/Frame 027439/0388 →
CONFIRMATORY LICENSE Recorded Dec 22, 2010
From: PRINCETON UNIVERSITY
To: NATIONAL SCIENCE FOUNDATION
Reel/Frame 025549/0091 →
Continuity (3)
Continuation 12208682 · Sep 11, 2008
Continuation 11249404 · Oct 14, 2005
Related Publication 20110052476A1 · Mar 3, 2011