Porous interconnected corrugated carbon-based network (ICCN) composite

Patent metadata

Field	Value
Publication number	US-10734167-B2
Application number	US-201514945232-A
Country	US
Kind code	B2
Filing date	Nov 18, 2015
Priority date	Nov 18, 2014
Publication date	Aug 4, 2020
Grant date	Aug 4, 2020

Abstract

A porous interconnected corrugated carbon-based network (ICCN) composite and methods for making the same are disclosed. The porous ICCN composite is made up of a plurality of carbon layers that are interconnected and expanded apart from one another to form a plurality of pores. Metallic nanoparticles are disposed within the plurality of pores. In one embodiment, a light exposure only based method for producing the porous ICCN composite is disclosed. In another embodiment a light exposure plus an electrodeposition method for producing the porous ICCN composite is disclosed. In yet another exemplary embodiment, a capacitor having a first electrode and a second electrode separated from the first electrode by a dielectric wherein at least one of the first electrode and the second electrode is formed from the porous ICCN composite is disclosed.

First claim

What is claimed is:

1. A porous interconnected corrugated carbon-based network (ICCN) composite comprising:
a plurality of one atom thick two-dimensional carbon sheets that are interconnected in a layered structure, wherein consecutively layered carbon sheets are directly coupled and expanded apart from one another to form a plurality of pores; and
metallic nanoparticles disposed within the plurality of pores, wherein a percentage of surface area coverage of the metallic nanoparticles onto the plurality of one atom thick two-dimensional carbon sheets ranges from about 10% to about 95%.

2. The porous ICCN composite of claim 1 wherein an average minor axis diameter of the plurality of pores ranges (i) from about 2 nanometers to about 50 nanometers, or (ii) from about 50 nanometers to about 500 nanometers.

3. The porous ICCN composite of claim 1 wherein the metallic nanoparticles have a nanoflower shape.

4. The porous ICCN composite of claim 1 wherein the metallic nanoparticles are metal oxide particles.

5. The porous ICCN composite of claim 4 wherein the metallic nanoparticles are particles of manganese dioxide (MnO 2 ), ruthenium dioxide (RuO 2 ), cobalt oxide (CO 3 O 4 ), nickel oxide (NiO), iron oxide (Fe 2 O 3 ), copper oxide (CuO), molybdenum trioxide (MoO 3 ), vanadium pentoxide (V 2 O 5 ), nickel hydroxide (Ni(OH) 2 ), or any combination thereof.

6. The porous ICCN composite of claim 1 wherein the porous ICCN composite (i) has an electrical conductivity that ranges from about 900 siemens/meter to about 1750 siemens/meter, or (ii) provides an energy density that ranges from about 2 Watt-hour/liter to about 41 Watt-hour/liter.

7. The porous ICCN composite of claim 1 wherein (i) an electrical conductivity of the plurality of one atom thick two-dimensional carbon sheets is greater than about 0.1 siemens/meter, (ii) a total surface area per unit mass of the plurality of one atom thick two-dimensional carbon sheets is at least about 1500 square meters per gram, or (iii) a total surface area per unit mass of the plurality of one atom thick two-dimensional carbon sheets ranges from about 1500 square meters per gram to about 1620 square meters per gram.

8. A method of producing porous ICCN composite comprising:
providing a film comprising a mixture of a metallic precursor and a carbon-based oxide; and
exposing at least a portion of the film to light to form a porous interconnected corrugated carbon-based network (ICCN) composite comprising:
a plurality of one atom thick two-dimensional carbon sheets that are interconnected in a layered structure, wherein consecutively layered carbon sheets are directly coupled and expanded apart from one another to form a plurality of pores; and
metallic nanoparticles disposed within the plurality of pores, wherein a percentage of surface area coverage of the metallic nanoparticles onto the plurality of one atom thick two-dimensional carbon sheets ranges from about 10% to about 95%, and wherein the light converts the metallic precursor to metallic nanoparticles.

9. The method of producing porous ICCN composite of claim 8 wherein providing the film comprising the mixture of the metallic precursor and the carbon-based oxide comprises:
providing a solution comprising a liquid, the metallic precursor, and the carbon-based oxide;
disposing the solution with the liquid, the metallic precursor, and the carbon-based oxide onto a substrate; and
evaporating the liquid from the solution to form the film.

10. The method of producing the porous ICCN composite of claim 8 wherein the carbon-based oxide is graphite oxide.

11. The method of producing the porous ICCN composite of claim 8 wherein the metallic nanoparticles are particles of ruthenium oxide (RuO 2 ), cobalt oxide (CO 3 O 4 ), nickel oxide (NiO), vanadium pentoxide (V 2 O 5 ), iron oxide (Fe 2 O 3 ), copper oxide (CuO), molybdenum trioxide (MoO 3 ), or any combination thereof.

12. The method of producing the porous ICCN composite of claim 8 wherein an electrical conductivity of the plurality of one atom thick two-dimensional carbon sheets is greater than about 0.1 siemens/meter.

13. The method of producing the porous ICCN composite of claim 8 wherein the porous ICCN composite has an electrical conductivity that ranges from about 900 siemens/meter to about 1750 siemens/meter.

14. A method of producing a porous interconnected corrugated carbon-based network (ICCN) composite comprising:
forming a porous ICCN composite comprising a plurality of one atom thick two-dimensional carbon sheets that are interconnected in a layered structure, wherein consecutively layered carbon sheets are directly coupled and expanded apart from one another to form a plurality of pores; and
electrodepositing metallic nanoparticles within the plurality of pores, wherein a percentage of surface area coverage of the metallic nanoparticles onto the plurality of one atom thick two-dimensional carbon sheets ranges from about 10% to about 95%.

15. The method of producing the porous ICCN composite of claim 14 wherein forming the porous ICCN composite comprises providing a film made of a mixture of a carbon-based oxide by:
providing a solution comprising a liquid and the carbon-based oxide;
disposing the solution with the liquid and the carbon-based oxide onto a substrate;
evaporating the liquid from the solution to form the film; and
exposing the film to light.

16. The method of producing the porous ICCN composite of claim 15 wherein the carbon-based oxide is graphite oxide.

17. The method of producing the porous ICCN composite of claim 14 wherein the metallic nanoparticles are particles of manganese dioxide (MnO2), ruthenium oxide (RuO 2 ), cobalt oxide (CO 3 O 4 ), nickel oxide (NiO), vanadium pentoxide (V 2 O 5 ), iron oxide (Fe 2 O 3 ), copper oxide (CuO), molybdenum trioxide (MoO 3 ), nickel hydroxide (Ni(OH) 2 ), or any combination thereof.

18. The method of producing the porous ICCN composite of claim 14 wherein an electrical conductivity of the plurality of one atom thick two-dimensional carbon sheets is greater than about 0.1 siemens/meter.

19. The method of producing the porous ICCN composite of claim 15 wherein the porous ICCN composite has an electrical conductivity that ranges from about 900 siemens/meter to about 1750 siemens/meter.

20. The method of producing the porous ICCN composite of claim 14 wherein electrodepositing the metallic nanoparticles within the plurality of pores comprises:
submerging the porous ICCN composite into an aqueous solution having a metallic precursor; and
applying an electrical current through the porous ICCN composite to electrodeposit the metallic nanoparticles into the plurality of pores.

21. The method of producing the porous ICCN composite of claim 20 wherein the electrical current has a current density of at least about 250 microamperes per square centimeter.

Assignees

• Univ California

Inventors

• El-Kady Maher F
• Kaner Richard B
• Hwang Jee Youn

Classifications

• Y02E60/13

  Energy storage using capacitors · CPC title

• Y02T10/70

  Energy storage systems for electromobility, e.g. batteries · CPC title

• C01B32/184 Primary

  Preparation · CPC title

• C25D9/08

  by cathodic processes · CPC title

• H01G11/46

  Metal oxides · CPC title