Hybrid materials and nanocomposite materials, methods of making same, and uses thereof
Hybrid materials and nanocomposite materials, methods of making and using such materials. The nanoparticles of the nanocomposite are formed in situ during pyrolysis of a hybrid material comprising metal precursor compounds. The nanoparticles are uniformly distributed in the carbon matrix of the nanocomposite. The nanocomposite materials can be used in devices such as, for example, electrodes and on-chip inductors.
1. A method for forming a material comprising the steps of:
contacting one or more monomers, wherein at least one of the one or more monomers is a cross-linking monomer,
one or more metal precursor compounds comprising a polymerizable group,
an initiator,
a surfactant,
one or more organic solvents, and
water,
such that a reaction mixture that is an aqueous emulsion is formed,
wherein the metal precursor compounds are present at 10 to 90% by weight of the reaction mixture,
heating the reaction mixture such that the metal precursor compounds are copolymerized with one or more monomers wherein the reaction between the polymerizable groups of one or more metal precursor compounds and the one or more monomers forms a hybrid material comprising a plurality of uniformly dispersed metal precursor compounds chemically bonded to the polymer matrix and, optionally, isolating the hybrid material, and
pyrolysing the hybrid material such that a nanocomposite material comprising a plurality of nanoparticles embedded in a carbon matrix is formed, the nanoparticles being formed from the metal component of the one or more metal precursor compounds.
2. The method of claim 1 , wherein the one or more monomers comprise a first monomer, and a second monomer, wherein the second monomer is a cross-linking monomer; and the surfactant is an anionic surfactant.
3. The method of claim 1 , wherein the one or more monomers comprise:
a first monomer and
a second monomer,
neither of which is a cross-linking monomer.
4. The method of claim 1 , wherein the reaction mixture comprises a plurality of metal precursors, wherein the metal precursors have a different metal.
5. The method of claim 1 , wherein the one or more monomers are selected from the group consisting of acrylonitrile, divinyl benzene, resorcinol, formaldehyde, vinylpyrrolidone, vinyl alcohol, acrylic acid, phenol, 1,4-butadiene, isoprene, vinylsilane, sulfur, and combinations thereof.
6. The method of claim 1 , wherein the one or more metal precursor compounds are selected from the group consisting of metal carboxylates, metal coordination compounds, and combinations thereof.
7. The method of claim 2 , wherein the nanoparticles are metal oxide nanoparticles and the method further comprises reducing the metal oxide nanoparticles of the nanocomposite material comprising a plurality of metal oxide nanoparticles embedded in a carbon matrix by contacting the nanocomposite material with a reductant or heating the nanocomposite material under inert conditions,
such that a nanocomposite material comprising a plurality of metal nanoparticles embedded in a carbon matrix is formed.
8. The method of claim 2 , wherein the nanoparticles are metal oxide nanoparticles and the method further comprises contacting the nanocomposite material comprising a plurality of metal oxide nanoparticles embedded in a carbon matrix with a sulfur compound, halide compound, or phosphate compound,
such that a nanocomposite material comprising a plurality of metal sulfide, metal halide, or metal phosphate nanoparticles embedded in a carbon matrix is formed.
9. The method of claim 1 , wherein the nanoparticles are metal sulfide nanoparticles and the method further comprises reducing the metal sulfide nanoparticles of the nanocomposite material comprising a plurality of metal sulfide nanoparticles embedded in a carbon matrix by contacting the nanocomposite material with a reductant or heating the nanocomposite material under inert conditions,
such that a nanocomposite material comprising a plurality of metal nanoparticles embedded in a carbon matrix is formed.
10. The method of claim 1 , wherein the nanoparticles are metal sulfide nanoparticles and the method further comprises contacting the nanocomposite material comprising a plurality of metal sulfide nanoparticles embedded in a carbon matrix with an oxygen compound, halide compound, or phosphate compound,
such that a nanocomposite material comprising a plurality of metal oxide, metal halide, or metal phosphate nanoparticles embedded in a carbon matrix is formed.
11. The method of claim 1 , wherein the hybrid material is isolated.
12. The method of claim 1 , wherein the one or more monomers comprise a first monomer, and a second monomer,
wherein the second monomer is a cross-linking monomer, and
wherein the first monomer is a bulk monomer and is the majority of the monomers.
13. The method of claim 1 , wherein a moiety of the individual metal precursor compound is incorporated in the polymer matrix via a chemical bond between the polymerizable group of the individual metal precursor compound and the one or more monomers.
14. The method of claim 6 , wherein the metal carboxylate comprises an alkyl moiety, wherein the alkyl moiety is substituted with a reactive chemical moiety chosen from a terminal carbon-carbon double bond group, an amine group, and a hydroxyl group.
15. The method of claim 1 , wherein the crosslinking monomer is divinyl benzene.
16. The method of claim 1 , wherein the nanocomposite material has a pore size distribution including mesopores and micropores.
17. The method of claim 1 , wherein the nanocomposite material has an average pore size of less than 20 nm.
18. The method of claim 1 , wherein the nanocomposite material comprises graphene-like sheet textures.