HIGHLY OXIDIZED GRAPHENE OXIDE AND METHODS FOR PRODUCTION THEREOF

James M. Tour

Patent

Atlas literature

Patent

US 9,428,394

HIGHLY OXIDIZED GRAPHENE OXIDE AND METHODS FOR PRODUCTION THEREOF

James M. Tour, Dmitriy V. Kosynkin

2016-08-30·US

Claims

Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.

5 independent · 49 dependent

1
Independentgraphite sourcegraphene oxide
A method comprising: providing a graphite source; providing a solution comprising at least one oxidant and at least one protecting agent s wherein the at least one protecting agent is operable for protecting vicinal diols; mixing the graphite source with the solution, wherein the mixing comprises stirring the graphite source with the solution wherein the mixing dissolves the graphite source in the solution; and wherein the stirring results in the oxidizing of the dissolved graphite source with the at least one oxidant in the presence of the at least one protecting agent to form graphene oxide, wherein the at least one protecting agent protects vicinal diols during the stirring.
1. 2
  Dependent← claim 1oxidant (permanganate, ferrate, osmate, ruthenate, chlorate, chlorite, nitrate, osmium tetroxide, ruthenium tetroxide, lead dioxide)
  The method of claim 1, wherein the at least one oxidant is selected from the group consisting of permanganate, ferrate, osmate, ruthenate, chlorate, chlorite, nitrate, osmium tetroxide, ruthenium tetroxide, lead dioxide, and combinations thereof.
2. 3
  Dependent← claim 1KMnO₄
  The method of claim 1, wherein the at least one oxidant comprises potassium perm anganate.
3. 4
  Dependent← claim 1acid solvent
  The method of claim 1, wherein the solution further comprises at least one acid solvent.
4. 9
  Dependent← claim 1
  The method of claim 1 [[8]], wherein the at least one protecting agent chelates the vicinal diols.
5. 10
  Dependent← claim 1
  The method of claim 1 [[8]], wherein the at least one protecting agent protects each alcohol of the vicinal diols individually.
6. 11
  Dependent← claim 1protecting agent (trifluoroacetic acid; phosphoric acid; orthophosphoric acid; metaphosphoric acid; polyphosphoric acid; boric acid; trifluoroacetic anhydride; phosphoric anhydride; orthophosphoric anhydride; metaphosphoric anhydride; polyphosphoric anhydride; boric anhydride; mixed anhydrides thereof)
  The method of claim 1, wherein the at least one protecting agent is selected from the group consisting of triﬂuoroacetic acid; phosphoric acid; orthophosphoric acid; metaphosphoric acid; polyphosphoric acid; boric acid; triﬂuroacetic anhydride; phosphoric anhydride; orthophosphoric anhydride; metaphosphoric anhydride; polyphosphoric anhydride; boric anhydride; mixed anhydrides of triﬂuoroacetic acid, phosphoric acid, orthophosphoric acid, metaphosphoric acid, polyphosphoric acid, and boric acid; and combinations thereof.
7. 12
  Dependent← claim 1protecting agent (phosphoric acid, boric acid, trifluoroacetic acid)
  The method of claim 1, wherein the at least one protecting agent is selected from the group consisting of phosphoric acid, boric acid, triﬂuoroacetic acid, and combinations thereof.
8
Independent
canceled
13
Independentgraphite sourcegraphene oxideacid solvent
A method comprising: providing a graphite source; providing a solution comprising at least one acid solvent, at least one oxidant and at least one protecting agent; wherein the at least one protecting agent is operable for protecting vicinal diols; and mixing the graphite source with the solution, wherein the mixing dissolves the graphite source in the solution -3- ATTORNEY DOCKET NO. PATENT 1 1321-P₁₈₆WOUS Serial No. 13/321,623 wherein the mixing comprises stirring the graphite source with the solution; and wherein the stirring results in the oxidizing of the dissolved graphite source with the at least one oxidant in the presence of the at least one protecting agent to form graphene oxide, wherein the at least one protecting agent protects vicinal diols during the stirring.
1. 14
  Dependent← claim 13graphene oxide
  The method of claim 13, wherein the graphene oxide is more oxidized than graphene oxide prepared in the absence of the at least one protecting agent.
2. 15
  Dependent← claim 13acid solvent (oleum, sulfuric acid, chlorosulfonic acid, fluorosulfonic acid, trifluoromethanesulfonic acid)
  The method of claim 13, wherein the at least one acid solvent is selected from the group consisting of oleum, sulfuric acid, chlorosulfonic acid, ﬂuorosulfonic acid, triﬂuoromethanesulfonic acid, and combinations thereof.
3. 16
  Dependent← claim 13H₂SO₄
  The method of claim 13, wherein the at least one acid solvent comprises sulfuric acid.
4. 17
  Dependent← claim 13protecting agent (trifluoroacetic acid; phosphoric acid; orthophosphoric acid; metaphosphoric acid; polyphosphoric acid; boric acid; trifluoroacetic anhydride; phosphoric anhydride; orthophosphoric anhydride; metaphosphoric anhydride; polyphosphoric anhydride; boric anhydride; mixed anhydrides thereof)
  The method of claim 13, wherein the at least one protecting agent is selected from the group consisting of triﬂuoroacetic acid; phosphoric acid; orthophosphoric acid; metaphosphoric acid; polyphosphoric acid; boric acid; triﬂuroacetic anhydride; phosphoric anhydride; orthophosphoric anhydride; metaphosphoric anhydride; polyphosphoric anhydride; boric anhydride; mixed anhydrides of triﬂuoroacetic acid, phosphoric acid, orthophosphoric acid, metaphosphoric acid, polyphosphoric acid, and boric acid; and combinations thereof.
5. 18
  Dependent← claim 13protecting agent (phosphoric acid, boric acid, trifluoroacetic acid)
  The method of claim 13, wherein the at least one protecting agent is selected from the group consisting of phosphoric acid, boric acid, triﬂuoroacetic acid, and combinations thereof.
6. 19
  Dependent← claim 13KMnO₄
  The method of claim 13, wherein the at least one oxidant comprises potassium permanganate.
7. 20
  Dependent← claim 13
  The method of claim 13, wherein oxidizing the graphite source takes place at a temperature between about 30 ° C and about 85 C.
8. 21
  Dependent← claim 13graphene oxide
  The method of claim 13, further comprising: isolating the graphene oxide.
9. 37
  Dependent← claim 13graphene oxide
  Graphene oxide prepared by the method of claim 13. withdrawn
10. 45
  Dependent← claim 13graphene oxide
  A mixture comprising graphene oxide prepared by the method of claim 13, wherein the graphene oxide is operable to slow the ﬁltration rate of a liquid mixture selected from the group consisting of an aqueous liquid mixture, a non-aqueous liquid mixture, and combinations thereof. withdrawn
32
Independentgraphite sourcegraphene oxideKMnO₄acid solvent (oleum, sulfuric acid, chlorosulfonic acid, fluorosulfonic acid, trifluoromethanesulfonic acid)protecting agent (trifluoroacetic acid; phosphoric acid; orthophosphoric acid; metaphosphoric acid; polyphosphoric acid; boric acid; trifluoroacetic anhydride; phosphoric anhydride; orthophosphoric anhydride; metaphosphoric anhydride; polyphosphoric anhydride; boric anhydride; mixed anhydrides thereof)
A method comprising: providing a graphite source; providing a solution comprising at least one acid solvent, potassium permanganate and at least one protecting agent, wherein the at least one protecting agent is operable for protecting vicinal diols; wherein the at least one acid solvent is selected from the group consisting of oleum, sulfuric acid, ﬂuorosulfonic acid, triﬂuoromethanesulfonic acid, and combinations thereof; and wherein the at least one protecting agent is selected from the group consisting of triﬂuoroacetic acid; phosphoric acid; orthophosphoric acid; metaphosphoric acid; polyphosphoric acid; boric acid; triﬂuroacetic anhydride; phosphoric anhydride; orthophosphoric anhydride; metaphosphoric anhydride; polyphosphoric anhydride; boric anhydride; mixed anhydrides of triﬂuoroacetic acid, phosphoric acid, orthophosphoric acid, metaphosphoric acid, polyphosphoric acid, and boric acid; and combinations thereof; mixing the graphite source with the solution, wherein the mixing comprises stirring the graphite source with the solution, wherein the mixing dissolves the graphite source in the solution; and wherein the stirring results in the oxidizing of the dissolved graphite source with the potassium permanganate in the presence of the at least one protecting agent to form graphene oxide, wherein the at least one protecting agent protects vicinal diols during the stirring.
1. 33
  Dependent← claim 32protecting agent (phosphoric acid, boric acid, trifluoroacetic acid)
  The method of claim 32, wherein the at least one protecting agent is selected from the group consisting of phosphoric acid, boric acid, triﬂuoroacetic acid, and combinations thereof.
2. 34
  Dependent← claim 32H₂SO₄
  The method of claim 32, wherein the at least one acid solvent comprises sulfuric acid.
3. 35
  Dependent← claim 32
  The method of claim 32, wherein oxidizing the graphite source takes place at a temperature between about 30 0 C and about 85 C.
4. 36
  Dependent← claim 32graphene oxide
  The method of claim 32, wherein the graphene oxide is operable to slow the ﬁltration rate of a liquid mixture selected from the group consisting of an aqueous liquid mixture, a non-aqueous liquid mixture, and combinations thereof.
54
Independentgraphene oxidefunctionalized graphene oxidechemically converted graphenefunctionalized, chemically converted graphene
A mixture comprising more than one graphene type selected from the group consisting of graphene oxide, functionalized graphene oxide, chemically converted graphene, and functionalized, chemically converted graphene, wherein the mixture comprising more than one type graphene type is operable to slow the ﬁltration rate of a liquid mixture selected from the group consisting of an aqueous liquid mixture, a non-aqueous liquid mixture, and combinations thereof. -9- withdrawn

Materials

Materials described outside the worked examples.

graphite source

Starting Material

graphene oxide

Product

Why these are connected

Related documents with shared materials, methods, properties, or citations.

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