Nanoporous structures and assemblies incorporating the same
Various embodiments disclosed relate to a method of forming a composite including a carbon composite structure. The method includes disposing a precursor composition on a substrate. The composition includes a porogen component, a carbon component, and a catalyst component. The method further includes irradiating the precursor composition to form the carbon composite structure.
1 . A method of forming a binder-free, mesoporous, graphitic multi-layer carbon composite structure, the method comprising:
disposing a precursor composition on a substrate, the precursor composition comprising:
a porogen component comprising a polymer;
a carbon component comprising phenol formaldehyde resin, glucose, cellulose, or 4-hydroxybenozic acid, brown sugar, barley sugar, caramel, cane sugar, corn syrup, starch, molasses, molasses raffinate, glucan, galactan, xylan, sugar waste product, activated carbon, carbon black, carbon fiber, carbon honeycomb or plate structure, aerogel carbon film, pyrolysis char, (C 1 -C 40 ) alkane, (C 1 -C 40 ) alkene, (C 1 -C 40 ) alkyne, (C 1 -C 40 ) aryl or a combination thereof; and
a metal or metal oxide nanoparticle comprising aluminum, magnesium, chromium, tin, silver, titanium, gold, silicon, silicon carbide, iron, iron oxide, copper, nickel, palladium, platinum, ruthenium, rubidium, alloys thereof, or mixtures thereof,
irradiating the disposed precursor composition so as to carbonize the precursor composition, decompose the porogen, and convert the carbon component to a graphitic material to form a binder-free, mesoporous, graphitic multi-layer carbon composite structure.
2 . The method of claim 1 , wherein irradiating the disposed precursor composition is performed with sub-millisecond light pulses.
3 . The method of claim 1 , wherein the graphitic material is generated during irradiation and the precursor composition is directly converted to the binder-free, mesoporous, multi-layer carbon composite without any addition of polymer, or binder materials.
4 . The method of claim 1 , wherein the porogen component ranges from about 5 wt % to about 50 wt % of the precursor composition.
5 . The method of claim 1 , wherein the polymer of the porogen component comprises a polyacetal, polyacrylic, polycarbonate, polystyrene, polyester, polyamide, polyamideimide, polyarylate, polyacrylate, polymethylmethacrylate, polyarylsulfone, polyethersulfone, polyphenylene sulfide, polyvinyl chloride, polysulfone, polyimide, polyetherimide, polytetrafluoroethylene, polyetherketone, polyether etherketone, polyether ketone, polybenzoxazole, polyoxadiazole, polybenzothiazinophenothiazine, polybenzothiazole, polypyrazinoquinoxaline, polypyromellitimide, polyquinoxaline, polybenzimidazole, polyoxindole, polyoxoisoindoline, polydioxoisoindoline, polytriazine, polypyridazine, polypiperazine, polypyridine, polypiperidine, polytriazole, polypyrazole, polypyrrolidine, polycarborane, polyoxabicyclononane, polydibenzofuran, polyphthalide, polyacetal, polyanhydride, polyvinyl ether, polyvinyl thioether, polyvinyl alcohol, polyvinyl ketone, polyvinyl halide, polyvinyl nitrile, polyvinyl ester, polysulfonate, polysulfide, polythioester, polysulfone, polysulfonamide, polyurea, polyphosphazene, polysilazane, polysiloxane, polyolefin, polyacrylamide, epoxy polymer, unsaturated polyester polymer, polyimide polymer, bismaleimide polymer, bismaleimide triazine polymer, cyanate ester polymer, vinyl polymer, benzoxazine polymer, benzocyclobutene polymer, acrylic, alkyd, phenol-formaldehyde polymer, novolac, resole, melamine-formaldehyde polymer, urea-formaldehyde polymer, hydroxymethylfuran, isocyanate, unsaturated polyesterimide, or a mixture thereof.
6 . The method of claim 1 , where the polymer of the porogen component comprises a poly(styrene-b-vinyl pyridine), poly(styrene-b-butadiene), poly(styrene-b-isoprene), poly(styrene-b-methyl methacrylate), poly(styrene-b-alkenyl aromatics), poly(isoprene-b-ethylene oxide), poly(styrene-b-(ethylene-propylene)), poly(ethylene oxide-b-caprolactone), poly(butadiene-b-ethylene oxide), poly(styrene-b-t-butyl (meth)acrylate), poly(methyl methacrylate-b-t-butyl methacrylate), poly(ethylene oxide-b-propylene oxide), poly(styrene-b-tetrahydrofuran), poly(styrene-b-isoprene-b-ethylene oxide), poly(styrene-b-dimethylsiloxane), poly(styrene-b-trimethylsilylmethyl methacrylate), poly(methyl methacrylate-b-dimethylsiloxane), poly(methyl methacrylate-b-trimethylsilylmethyl methacrylate), or a mixture thereof.
7 . The method of claim 1 , wherein the porogen component comprises a block copolymer that comprises polystyrene and polyethylene oxide.
8 . The method of claim 1 , wherein the porogen component comprises polynorbornene-graft-poly(styrene))-block-(polynorbornene-graft-poly(ethylene oxide)) brush block copolymer.
9 . The method of claim 1 , wherein at the metal or metal oxide nanoparticle ranges from about 0.01 wt % to about 50 wt % of the precursor composition.
10 . The method of claim 1 , wherein the metal or metal oxide nanoparticle ranges from about 1 wt % to about 15 wt % of the precursor composition.
11 . The method of any one of claim 1 , wherein the binder-free, mesoporous, graphitic multi-layer carbon composite structure comprises at least one layer of the carbon composite having at least one of a nanowire, a nanotube, and a nanoribbon, wherein the at least one nanowire, nanotube, and nanoribbon have a width ranging from about 5 nanometers to about 500 nanometers.
12 . The method of claim 11 , wherein the at least one nanowire, nanotube, and nanoribbon have a width ranging from about 20 nanometers to about 50 nanometers.
13 . The method of claim 1 , wherein the binder-free, mesoporous, graphitic multi-layer carbon composite structure comprises a pattern formed from a plurality of protrusions extending from the substrate.
14 . The method of claim 1 , wherein the porogen component ranges from about 20 wt % to about 40 wt % of the precursor composition.
15 . The method of claim 1 , wherein about 90 wt % to about 100 wt % of the porogen component is polymer.
16 . The method of claim 1 , wherein the carbon component ranges from about 5 wt % to about 50 wt % of the precursor composition.
17 . The method of claim 1 , wherein the substrate comprises a conductive material, comprises a polymer, or both.
18 . The method of claim 1 , wherein the metal or metal oxide nanoparticle is coated with an organic functional group.
19 . A method of forming a binder-free, mesoporous, graphitic multi-layer carbon composite structure, the method comprising:
disposing a carbon-containing precursor composition on a substrate that comprises a metal, the precursor composition comprises:
a porogen that is a block copolymer; and
phenol formaldehyde resin, glucose, cellulose, or 4-hydroxybenozic acid; and
at least one of gold nanoparticles coated with 4-mercapto-phenol or iron/iron oxide nanoparticles coated with 4-hydroxybenzoic acid;
irradiating the disposed precursor composition with sub-millisecond light pulses so as to carbonize the precursor composition, decompose the porogen, and convert the phenol formaldehyde resin, glucose, cellulose, or 4-hydroxybenozic acid to a graphitic material to form a binder-free, mesoporous, graphitic multi-layer carbon composite structure.
20 . A method of forming a binder-free, mesoporous, graphitic multi-layer carbon composite structure, the method comprising:
disposing a precursor composition on a substrate, which comprises a first polymer, and the precursor composition comprising:
a porogen comprising a block copolymer;
a carbon component comprising phenol formaldehyde resin, glucose, cellulose, or 4-hydroxybenozic acid; and
a metal or metal oxide nanoparticle selected from aluminum, magnesium, chromium, tin, silver, titanium, gold, silicon, silicon carbide, iron, iron oxide, copper, nickel, palladium, platinum, ruthenium, rubidium, alloys thereof, or mixtures thereof;
irradiating the disposed precursor composition with sub-millisecond light pulses so as to carbonize the precursor composition, decompose the porogen, and convert the carbon component to a graphitic material to form a binder-free, mesoporous, graphitic multi-layer carbon composite structure,
wherein the graphitic material is generated during irradiation, and the precursor composition is directly converted to the binder-free, mesoporous, graphitic multi-layer carbon composite without any addition of polymer, or binder materials.