Interconnected corrugated carbon-based network

Patent metadata

Field	Value
Publication number	US-2023194492-A1
Application number	US-202217872380-A
Country	US
Kind code	A1
Filing date	Jul 25, 2022
Priority date	Dec 21, 2011
Publication date	Jun 22, 2023
Grant date	—

Abstract

An interconnected corrugated carbon-based network comprising a plurality of expanded and interconnected carbon layers is disclosed. In one embodiment, each of the expanded and interconnected carbon layers is made up of at least one corrugated carbon sheet that is one atom thick. In another embodiment, each of the expanded and interconnected carbon layers is made up of a plurality of corrugated carbon sheets that are each one atom thick. The interconnected corrugated carbon-based network is characterized by a high surface area with highly tunable electrical conductivity and electrochemical properties.

First claim

What is claimed is:

1 . An interconnected corrugated carbon-based network comprising a plurality of expanded and interconnected carbon layers.

2 . The interconnected corrugated carbon-based network of claim 1 , wherein each of the expanded and interconnected carbon layers comprises at least one corrugated carbon sheet that is one atom thick.

3 . The interconnected corrugated carbon-based network of claim 1 wherein each of the expanded and interconnected carbon layers comprises a plurality of corrugated carbon sheets that are each one atom thick.

4 . The interconnected corrugated carbon-based network of claim 1 wherein a second order disordered (2D) Raman peak for the interconnected corrugated carbon-based network shifts from around about 2730 cm −1 to around about 2688 cm −1 after the interconnected corrugated carbon-based network is reduced from a carbon-based oxide.

5 . The interconnected corrugated carbon-based network of claim 1 wherein a 2D Raman peak for the interconnected corrugated carbon-based network shifts from around about 2700 cm −1 to around about 2600 cm −1 after the interconnected corrugated carbon-based network is reduced from a carbon-based oxide.

6 . The interconnected corrugated carbon-based network of claim 1 wherein an average thickness of the plurality of expanded and interconnected carbon layers is around 7.6 μm.

7 . The interconnected corrugated carbon-based network of claim 1 wherein a range of thickness of the plurality of expanded and interconnected carbon layers is from around about 7 μm to around about 8 μm.

8 . The interconnected corrugated carbon-based network of claim 1 wherein an oxygen content of the expanded and interconnected carbon layers is around about 3.5%.

9 . The interconnected corrugated carbon-based network of claim 1 wherein an oxygen content of the expanded and interconnected carbon layers ranges from around about 1% to around about 5%.

10 . The interconnected corrugated carbon-based network of claim 1 wherein the plurality of expanded and interconnected carbon layers has a carbon-to-oxygen (C/O) ratio of approximately 27.8:1.

11 . The interconnected corrugated carbon-based network of claim 1 wherein the plurality of expanded and interconnected carbon layers has a C/O ratio that ranges from around about 100:1 to 25:1.

12 . The interconnected corrugated carbon-based network of claim 1 wherein the plurality of expanded and interconnected carbon layers has a Raman spectroscopy S3 second order peak at about 2927 cm −1 .

13 . The interconnected corrugated carbon-based network of claim 1 wherein the plurality of expanded and interconnected carbon layers has a Raman spectroscopy S3 second order peak that ranges from around about 2920 cm −1 to around about 2930 cm −1 .

14 . The interconnected corrugated carbon-based network of claim 1 wherein a number of carbon layers in the plurality of expanded and interconnected carbon layers is greater than about 10,000.

15 . The interconnected corrugated carbon-based network of claim 1 , comprising a carbon content of at least 96.5% and an oxygen content of at most 3.5%.

16 . The interconnected corrugated carbon-based network of claim 1 , comprising a oxygen content of at most 3.5%.

17 . The interconnected corrugated carbon-based network of claim 1 , wherein the interconnected corrugated carbon-based network comprises graphene oxide.

18 . The interconnected corrugated carbon-based network of claim 17 , wherein the interconnected corrugated carbon-based network is arranged in a graphene oxide film.

19 . A flexible electrode comprising:
a. an interconnected corrugated carbon-based network (ICCN) deposited on a surface of a flexible substrate, the ICCN comprising: a plurality of expanded and interconnected carbon layers comprising interconnected carbon layers made up of at least one corrugated carbon sheet that is one atom thick, and a plurality of metal nanoparticles; and b. the flexible substrate.

20 . A method of producing a patterned interconnected corrugated carbon-based network, comprising:
a. receiving a substrate having a carbon-based oxide film; b. generating a light beam having a power of about 3 mW with a laser to reduce and expand portions of the carbon-based oxide film, thereby forming a plurality of expanded and interconnected carbon layers that are electrically conductive; and c. directing the light beam across the carbon-based oxide film in a pattern.

Assignees

• Univ California

Inventors

• Strong Veronica
• El-Kady Maher F
• Kaner Richard B

Classifications

• B32B2307/202

  Conductive · CPC title

• H01B1/04

  mainly consisting of carbon-silicon compounds, carbon or silicon · CPC title

• B32B3/26

  characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids {(foam layer B32B5/18; layer of synthetic resin characterised by fillers that create voids or cavities B32B27/205); characterised by an apertured layer} · CPC title

• B32B27/32

  comprising polyolefins {(comprising vinyl (co)polymers or acrylic (co)polymers B32B27/30)} · CPC title

• G21K5/02

  having no beam-forming means · CPC title