Nanocarbon material and applications of nanocarbon material
A nanocarbon material includes agglomerate nanostructures made of aggregates of: (i) graphene nanostructures having at least partially crumpled morphology, and (ii) clusters of at least one carbon material. The carbon material may have a graphitic structure. At least a portion of the graphitic structure may be at least partially hollow and have at least one winged protrusion. Optionally, the nanocarbon material may be part of a composition that includes a dispersion medium or a cementitious material. Methods of making such a composition are also disclosed.
1. A nanocarbon material comprising:
a plurality of agglomerate nanostructures comprising a plurality of aggregates of:
graphene nanostructures having an at least partially crumpled morphology, and clusters of at least one carbon material;
wherein at least a portion of the carbon material has a graphitic structure; and
wherein at least a portion of the graphitic structure is at least partially hollow and has at least one winged protrusion.
2. The nanocarbon material according to claim 1 , wherein at least a portion of the carbon material has an amorphous structure.
3. The nanocarbon material according to claim 1 , wherein the carbon material has at least one morphology selected from the group consisting of capsules, spherules, onion-like particles, rosette-type particles or a combination thereof.
4. The nanocarbon material according to claim 1 , wherein the carbon material does not have a nanotube morphology.
5. The nanocarbon material according to claim 1 , wherein the carbon material comprises capsules, and the capsules are at least partially hollow.
6. The nanocarbon material according to claim 1 , wherein the carbon material comprises spherules and the spherules are at least partially hollow.
7. The nanocarbon material according to claim 1 , wherein the carbon material comprises spherules and the spherules are amorphous.
8. The nanocarbon material according to claim 1 , wherein the graphene nanostructures have a surface area of from about 100 m 2 /g to about 1500 m 2 /g.
9. The nanocarbon material according to claim 1 , wherein the graphene nanostructures have a lateral dimension of from 20 nm to 500 nm.
10. The nanocarbon material of claim 1 , wherein the aggregates have an average size of from 100 nm to 1000 nm.
11. The nanocarbon material of claim 1 , wherein the nanocarbon material comprises substantially no ash, metal atoms, or heteroatoms.
12. The nanocarbon material of claim 1 , wherein the nanocarbon material is surface-functionalized during formation, post-processing, or a combination thereof.
13. The nanocarbon material of claim 1 , wherein the nanocarbon material is functionalized to express alkyl, substituted alkyl, phenyl, aryl, substituted phenyl, substituted aryl, hydroxyl, carboxyl, carbonyl, halo, ether, azo, substituted azo, and sulfo moieties, or a combinations thereof.
14. The nanocarbon material of claim 1 , wherein the nanocarbon material is in the form of a powder.
15. The nanocarbon material of claim 1 , wherein the nanocarbon material is in the form of pellets.
16. The nanomaterial of claim 1 , wherein the nanocarbon material has been activated with at least one of heat, steam or CO2 plasma.
17. The nanocarbon material of claim 1 , further comprising at least one light polycyclic compound having a carbon atomic count of no more than 100.
18. The nanocarbon material of claim 17 , wherein the at least one light polycyclic compound is suitable for production of at least one of amorphous coke, sponge coke, honeycomb coke, needle coke, battery carbons, isotropic pitch, mesophase pitch, mesocarbon microbeads (MCMB), carbon fiber, activated carbon, battery-grade graphite, anode graphite, synthetic graphite, nuclear graphite, or electrode graphite.
19. The nanomaterial of claim 1 , wherein the nanocarbon material has a carbon: hydrogen atomic ratio of at least 60.
20. The nanomaterial of claim 1 , wherein the nanocarbon material has a bulk conductivity of at least 20,000 S/m, when measured at 1 kN compression force.
21. A composition comprising:
the nanocarbon material of claim 1 ; and
a dispersion medium or a cementitious material.
22. The composition of claim 21 , wherein:
the dispersion medium is selected from the group consisting of an aqueous solution, a solvent, an oil, an alcohol, a matrix, a coating, a paint, or an ink; and
the nanocarbon material is dispersed in the dispersion medium.
23. The composition of claim 21 wherein:
the dispersion medium comprises a matrix; and the composition is a composite.
24. The composition of claim 23 , wherein the matrix comprises a polymer, ceramic or metal.
25. The composition of claim 21 , wherein the composition is suitable for use in at least one of a concrete, mortar, cement, metal, polymer, plastic, rubber, sealant, wax, aerogel, foam, coating, sorbent, catalyst support, epoxy, resin, carbon, asphalt, sealant, adhesive, polymer, battery, fuel cell, supercapacitor, ink, coating, or thermal insulator.
26. The composition of claim 23 , wherein the matrix comprises a polymer that is selected from the group consisting of a thermoset, thermoplastic, resin, urethane, or rubber.
27. The composition of claim 23 , wherein the matrix comprises a titanium metal.
28. The composition of claim 23 , wherein the matrix comprises a polymer that is selected from the group consisting of a polystyrene, polyacrylate, polyolefin, functionalized polyolefin, polyester, polyurethane, polyether, polysiloxane, and combinations thereof.
29. The composition of claim 23 , wherein the matrix comprises one or more functionalized polyolefins selected from the group consisting of poly(vinyl chloride), poly(vinyl acetate), poly(vinyl alcohol), and polyacrylonitrile.
30. The composition of claim 23 , wherein the agglomerate nanostructures are present in an amount of from about 0.01 weight % to about 10 weight % in the composition.
31. The composition of claim 21 , wherein the composition comprises a cementitious material that is selected from the group consisting of a cement, concrete and mortar.
32. A method of making a cementitious composition, the method comprising the steps of:
(i) providing the nanocarbon material of claim 1 , and a cementitious material;
(ii) adding the nanocarbon material to an aqueous media, creating a dispersion;
(ii) stabilizing the dispersion; and
(iii) adding the dispersion to the cementitious material;
wherein the dispersion is stabilized by either:
(a) functionalizing the nanocarbon material prior to adding the nanocarbon material to the aqueous medium, or
(b) adding a dispersion aid to the dispersion.
33. The method of claim 32 , wherein the dispersion is stabilized by functionalizing the nanocarbon material prior to adding the nanocarbon material to the aqueous medium; and the functionalizing uses a salt selected from the group consisting of an oleum, nitric acid, ozone, potassium permanganate or diazonium salt, or a combination thereof.
34. The method of claim 32 , wherein the dispersion aid is selected from the group consisting of a naphthalene, sulfonate, polycarboxylate ether, polymer-based plasticizer, surfactant, or a combination thereof.
35. The method composition of claim 32 , wherein the agglomerate nanostructures are present in an amount of from about 0.01 weight % to about 10 weight % in the composition.