Use of carbon nanomaterials produced with low carbon footprint to produce composites with low co2 emission

Patent metadata

Field	Value
Publication number	US-2022380254-A1
Application number	US-202217874907-A
Country	US
Kind code	A1
Filing date	Jul 27, 2022
Priority date	Oct 29, 2018
Publication date	Dec 1, 2022
Grant date	—

Abstract

A low carbon footprint material is used to decrease the carbon dioxide emission for production of a high carbon footprint substance. A method of forming composite materials comprises providing a first high carbon footprint substance; providing a carbon nanomaterial produced with a carbon-footprint of less than 10 unit weight of carbon dioxide (CO 2 ) emission during production of 1 unit weight of the carbon nanomaterial; and forming a composite comprising the high carbon footprint substance and from 0.001 wt % to 25 wt % of the carbon nanomaterial, wherein the carbon nanomaterial is homogeneously dispersed in the composite to reduce the carbon dioxide emission for producing the composite material relative to the high carbon footprint substance.

First claim

1 .- 43 . (canceled)

44 . A method of forming composite materials, comprising steps of:
providing a high carbon footprint substance that comprises a metal; providing a carbon nanomaterial produced with a negative carbon-footprint indicating a net consumption of carbon dioxide during the production of the carbon nanomaterial; and forming a composite comprising the high carbon footprint substance and from 0.001 wt % to 25 wt % of the carbon nanomaterial, wherein the carbon nanomaterial is dispersed in the composite material to reduce the carbon dioxide emission for producing the composite material relative to the high carbon footprint substance and for increasing a mechanical strength property of the composite material.

44 . The method of claim 44 , wherein the negative carbon-footprint is less than 10 unit weight of carbon dioxide emitted during production of 1 unit weight of the carbon nanomaterial.

45 . The method of claim 44 , wherein the carbon-footprint is negative, indicating a net consumption of carbon dioxide during the production of the carbon nanomaterial.

46 . The method of claim 44 , wherein the carbon nanomaterial comprises carbon nanofibers with an average aspect ratio of 10 to 1000 and a thickness of 3 nm to 999 nm.

47 . The method of claim 47 , wherein the nanofibers comprise one or more of carbon nanotubes, helical carbon nanotubes, untangled carbon nanofibers, carbon nano-onions, a carbon nano-scaffold, a nano-platelet, and graphene.

48 . The method of claim 44 , wherein the step of forming comprises adding the carbon nanomaterial to a solid phase or a liquid phase or a gas phase of the high carbon footprint substance.

49 . The method of claim 44 , wherein the step of forming comprises dispersing the carbon nanomaterial in a liquid to form a first mixture, admixing the first mixture with the high carbon footprint substance to form a second mixture, and forming the composite material from the second mixture.

50 . The method of claim 44 , wherein the carbon nanomaterial is formed from a molten carbonate by electrolysis.

51 . The method of claim 51 , wherein the molten carbonate is generated by a reaction of carbon dioxide and a metal oxide in a molten electrolyte.

52 . The method of claim 52 , wherein the metal oxide is lithium oxide.

53 . The method of claim 51 , wherein the molten carbonate comprises a lithium carbonate or a lithiated carbonate.

54 . The method of claim 44 , wherein the high carbon footprint substance comprises one or more of cement, concrete, mortar, and grout.

55 . The method of claim 44 , wherein the high carbon footprint substance further comprises one or more of a plastic material, a resin, a ceramic, a glass, an insulator, an electrical conductor, a polymer, wood, a laminate, a cardboard, and a drywall.

56 . Use of a carbon nanomaterial produced by a low carbon-footprint method in a composite material comprising a high carbon footprint substance that comprises a metal and the carbon nanomaterial, for reducing an overall emission of carbon dioxide (CO 2 ) during the manufacture of the composite material, wherein the low carbon-footprint method has a negative carbon-footprint indicating a net consumption of carbon dioxide during the production of the carbon nanomaterial.

57 . Use of claim 56 , wherein the carbon nanomaterial is produced from a molten carbonate by electrolysis.

58 . Use of claim 56 , wherein the negative carbon-foot print is a carbon-footprint of less than 10 unit weight of CO 2 emission during production of 1 unit weight of the carbon nanomaterial and wherein the carbon nanomaterial increases a strength property of the composite material.

Assignees

• C2Cnt Llc

Inventors

• Licht Stuart
• Licht Gad

Classifications

• C22C1/1047

  by mixing and casting liquid metal matrix composites · CPC title

• C01B32/18 Primary

  Nanoonions; Nanoscrolls; Nanohorns; Nanocones; Nanowalls · CPC title

• B22F1/18 Primary

  Non-metallic particles coated with metal · CPC title

• C01B32/15 Primary

  Nano-sized carbon materials · CPC title

• C04B14/386 Primary

  Carbon (carbon nanotubes C04B14/026) · CPC title