Carbon fiber substrates having carbon nanotubes grown thereon and processes for production thereof
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
C23C-016/00
B82Y-030/00
C23C-016/54
C23C-016/458
C23C-016/26
B82Y-040/00
C01B-031/02
출원번호
US-0231869
(2011-09-13)
등록번호
US-8815341
(2014-08-26)
발명자
/ 주소
Malet, Brandon K.
Shah, Tushar K.
출원인 / 주소
Applied NanoStructured Solutions, LLC
대리인 / 주소
McDermott Will & Emery LLP
인용정보
피인용 횟수 :
0인용 특허 :
156
초록▼
Processes for growing carbon nanotubes on carbon fiber substrates are described herein. The processes can include depositing a catalyst precursor on a carbon fiber substrate, optionally depositing a non-catalytic material on the carbon fiber substrate, and after depositing the catalyst precursor and
Processes for growing carbon nanotubes on carbon fiber substrates are described herein. The processes can include depositing a catalyst precursor on a carbon fiber substrate, optionally depositing a non-catalytic material on the carbon fiber substrate, and after depositing the catalyst precursor and the optional non-catalytic material, exposing the carbon fiber substrate to carbon nanotube growth conditions so as to grow carbon nanotubes thereon. The carbon nanotube growth conditions can convert the catalyst precursor into a catalyst that is operable for growing carbon nanotubes. The carbon fiber substrate can remain stationary or be transported while the carbon nanotubes are being grown. Optionally, the carbon fiber substrates can include a barrier coating and/or be free of a sizing agent. Carbon fiber substrates having carbon nanotubes grown thereon are also described.
대표청구항▼
1. A carbon nanotube growth process comprising: depositing a catalyst precursor on a carbon fiber substrate; wherein the catalyst precursor is deposited from a solution comprising a transition metal salt, hydrogen peroxide, and water as a solvent; andafter depositing the catalyst precursor, exposing
1. A carbon nanotube growth process comprising: depositing a catalyst precursor on a carbon fiber substrate; wherein the catalyst precursor is deposited from a solution comprising a transition metal salt, hydrogen peroxide, and water as a solvent; andafter depositing the catalyst precursor, exposing the carbon fiber substrate to carbon nanotube growth conditions so as to grow carbon nanotubes thereon; wherein the carbon nanotube growth conditions convert the catalyst precursor into a catalyst that is operable for growing carbon nanotubes. 2. The carbon nanotube growth process of claim 1, further comprising: transporting the carbon fiber substrate while the carbon nanotubes are being grown. 3. The carbon nanotube growth process of claim 1, wherein the carbon fiber substrate is free of a sizing agent. 4. The carbon nanotube growth process of claim 1, wherein the carbon fiber substrate is coated with a barrier coating. 5. The carbon nanotube growth process of claim 4, wherein the barrier coating is selected from the group consisting of an alkoxysilane, an alkylsiloxane, an alumoxane, alumina nanoparticles, spin on glass, glass nanoparticles and combinations thereof. 6. The carbon nanotube growth process of claim 1, wherein the transition metal salt is selected from the group consisting of a transition metal nitrate, a transition metal acetate, a transition metal citrate, a transition metal chloride, hydrates thereof, and combinations thereof. 7. The carbon nanotube growth process of claim 6, wherein the transition metal salt is selected from the group consisting of iron (II) nitrate, iron (III) nitrate, cobalt (II) nitrate, nickel (II) nitrate, copper (II) nitrate, iron (II) acetate, iron (III) acetate, cobalt (II) acetate, nickel (II) acetate, copper (II) acetate, iron (II) citrate, iron (III) citrate, iron (III) ammonium citrate, cobalt (II) citrate, nickel (II) citrate, copper (II) citrate, iron (II) chloride, iron (III) chloride, cobalt (II) chloride, nickel (II) chloride, copper (II) chloride, hydrates thereof, and combinations thereof. 8. A carbon nanotube growth process comprising: depositing a catalyst precursor on a carbon fiber substrate that is free of a sizing agent; wherein the catalyst precursor is deposited from a solution comprising a transition metal salt, hydrogen peroxide, and water as a solvent;after depositing the catalyst precursor, exposing the carbon fiber substrate to carbon nanotube growth conditions so as to grow carbon nanotubes thereon; wherein the carbon nanotube growth conditions convert the catalyst precursor into a catalyst that is operable for growing carbon nanotubes; andtransporting the carbon fiber substrate while the carbon nanotubes are being grown. 9. The carbon nanotube growth process of claim 8, further comprising: spreading the carbon fiber material. 10. The carbon nanotube growth process of claim 9, further comprising: applying a barrier coating to the carbon fiber material. 11. The carbon nanotube growth process of claim 10, wherein the barrier coating is selected from the group consisting of an alkoxysilane, an alkylsiloxane, an alumoxane, alumina nanoparticles, spin on glass, glass nanoparticles and combinations thereof. 12. The carbon nanotube growth process of claim 8, wherein the transition metal salt is selected from the group consisting of a transition metal nitrate, a transition metal acetate, a transition metal citrate, a transition metal chloride, hydrates thereof, and combinations thereof. 13. The carbon nanotube growth process of claim 12, wherein the transition metal salt is selected from the group consisting of iron (II) nitrate, iron (III) nitrate, cobalt (II) nitrate, nickel (II) nitrate, copper (II) nitrate, iron (II) acetate, iron (III) acetate, cobalt (II) acetate, nickel (II) acetate, copper (II) acetate, iron (II) citrate, iron (III) citrate, iron (III) ammonium citrate, cobalt (II) citrate, nickel (II) citrate, copper (II) citrate, iron (II) chloride, iron (III) chloride, cobalt (II) chloride, nickel (II) chloride, copper (II) chloride, hydrates thereof, and combinations thereof. 14. A carbon nanotube growth process comprising: providing a carbon fiber substrate that is free of a sizing agent and has a barrier coating deposited thereon; wherein the barrier coating is selected from the group consisting of an alkoxysilane, an alkylsiloxane, an alumoxane, alumina nanoparticles, spin on glass, glass nanoparticles and combinations thereof;depositing a catalyst precursor on the barrier coating; wherein the catalyst precursor is deposited from a solution comprising a transition metal salt, hydrogen peroxide, and water as a solvent;after depositing the catalyst precursor, exposing the carbon fiber substrate to carbon nanotube growth conditions so as to grow carbon nanotubes thereon; wherein the carbon nanotube growth conditions convert the catalyst precursor into a catalyst that is operable for growing carbon nanotubes; andtransporting the carbon fiber substrate while the carbon nanotubes are being grown. 15. The carbon nanotube growth process of claim 14, wherein the catalyst precursor comprises an iron (II) salt or a hydrate thereof.
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