Graphene Aerogels

Peter J. Pauzauskie

Patent

Atlas literature

Patent

US 10,106,418

Graphene Aerogels

Peter J. Pauzauskie

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 · 13 dependent

1
Independent
1-30. Canceled
30
Independent
Canceled
31
Independentgraphene oxidegraphene aerogelactivated graphene aerogel
A method comprising: preparing a reaction mixture comprising a graphene oxide (GO) suspension and at least one catalyst; curing the reaction mixture to produce a wet gel; drying the wet gel to produce a dry gel; and pyrolyzing the dry gel to produce a graphene aerogel. Original
1. 32
  Dependent← claim 31graphene oxide
  The method of claim 31, wherein the GO suspension is an aqueous suspension or a suspension in at least one organic solvent. Original
2. 33
  Dependent← claim 31graphene oxide
  The method of claim 31, wherein the reaction mixture comprise a GO concentration of 2 mg/cc or more. Original
3. 34
  Dependent← claim 31resorcinolCH₂O
  The method of claim 31, wherein the reaction mixture comprises resorcinol and formaldehyde. Original
4. 35
  Dependent← claim 31
  The method of claim 31, wherein the reaction mixture is free of resorcinol and formaldehyde. Original
5. 36
  Dependent← claim 31graphene oxideresorcinolCH₂O
  The method of claim 31, wherein the reaction mixture comprises resorcinol and formaldehyde, and wherein the weight/weight ratio of GO/(resorcinol and formaldehyde) is 0.1 or more. Previously presented
6. 37
  Dependent← claim 31
  The method of claim 31, wherein the reaction mixture is cured at a temperature of 100 ° C or less. Original
7. 38
  Dependent← claim 31
  The method of claim 31, wherein the reaction mixture is cured at atmospheric pressure. Original
8. 39
  Dependent← claim 31
  The method of claim 31, wherein the step of drying the wet gel comprises solvent exchange. Original
9. 40
  Dependent← claim 31CO₂
  The method of claim 31, wherein the step of drying the wet gel comprises drying the wet gel with supercritical CO 2. Original
10. 41
  Dependent← claim 31
  The method of claim 31, wherein the step of pyrolyzing the dry gel comprises drying the dry gel in an inert atmosphere at a temperature of 500 ° C or higher. Original
11. 42
  Dependent← claim 31activated graphene aerogel
  The method of claim 31, further comprising thermally activating the graphene aerogel in an oxidizing atmosphere to produce an activated graphene aerogel. Original
12. 43
  Dependent← claim 31activated graphene aerogelresorcinolCH₂OCO₂
  The method of claim 31, further comprising thermally activating the graphene aerogel in CO 2 to produce an activated graphene aerogel, wherein the reaction mixture comprises an acid catalyst, resorcinol and formaldehyde, and wherein the activated graphene aerogel has a surface area of 2500 m/g or more and a capacity of 200 F/g or more. Previously presented
13. 44
  Dependent← claim 31graphene aerogel
  The method of claim 31, wherein the reaction mixture comprises a base catalyst and is free of resorcinol and formaldehyde, and wherein without thermal activation the graphene aerogel has a surface area of 1,000 m/g or more and a capacity of 100 F/g or more. Original
45
Independent
45-50. Canceled
50
Independent
Canceled

Materials

Materials described outside the worked examples.

graphene oxide

Precursor

graphene aerogel

Product

Process steps

Additional fabrication and treatment steps described in the patent.

Sol Gel Pyrolysis

Step 1

Process details

steps:preparing a reaction mixture comprising a GO suspension and at least one catalyst, curing the reaction mixture to produce a wet gel, drying the wet gel to produce a dry gel, pyrolyzing the dry gel to produce a graphene aerogel

drying method:solvent exchange or supercritical CO₂

curing pressure:atmospheric

pyrolysis atmosphere:inert

Reported properties

Performance values and ranges asserted in the specification or claims.

Property	Value	Material
graphene aerogel monolith electrical conductivity (embodiment)	≥ 25 S/m	graphene aerogel monolith
graphene aerogel monolith electrical conductivity (embodiment, higher)	≥ 55 S/m

Why these are connected

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

Graphene Aerogels | Matter42 Literature