Method for producing carrier for electrode catalyst, precursor of carrier for electrode catalyst, and carrier for electrode catalyst, comprising same
US-12057587-B2 · Aug 6, 2024 · US
Method and system for production of porous graphitic carbon materials embedded with active components
US12378699B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12378699-B2 |
| Application number | US-201916434911-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 7, 2019 |
| Priority date | Jun 8, 2018 |
| Publication date | Aug 5, 2025 |
| Grant date | Aug 5, 2025 |
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Abstract
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A method is disclosed for producing carbon fibers with active components such as those for oxygen reduction reactions (ORR). The method includes electrospinning a solution of polyacrylonitrile (PAN) and a transition metal into composite fibers; and annealing the composite fibers in an inert/reducing atmosphere.
First claim
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What is claimed is: 1. A nanocomposite comprising: one-dimensional porous nitrogen doped graphitic carbon fibers embedded with oxygen reduction reaction (ORR) components, the ORR components being surrounded by graphitic nanorings, and wherein the ORR components are nickel (Ni) nanoparticles and wherein the graphitic nanorings are concentric graphitic nanorings consisting of 10 graphene layers to 40 graphene layers. 2. The nanocomposite according to claim 1 , wherein the nanocomposite is Ni@N-GCFs (nitrogen-doped graphitic carbon fibers). 3. The nanocomposite according to claim 1 , wherein the nanocomposite is used in a fuel cell catalyst. 4. The nanocomposite according to claim 1 , wherein the nanocomposite is used in a battery. 5. The nanocomposite according to claim 1 , wherein the nanocomposite is used in a water purification system. 6. The nanocomposite according to claim 1 , wherein the nanocomposite is used in opto-electronics including light emitting or absorbing materials. 7. The nanocomposite according to claim 1 , wherein the nanocomposite has a diameter of 633 nm to 634 nm. 8. The nanocomposite according to claim 1 , wherein the nanocomposite is NiO@N-GCFs (nitrogen-doped graphitic carbon fibers). 9. A nanocomposite comprising: one-dimensional porous nitrogen doped graphitic carbon fibers embedded with oxygen reduction reaction (ORR) components, the ORR components being surrounded by fullerene-form graphitic walls, and wherein the ORR components are nickel (Ni) nanoparticles and wherein the fullerene-form graphitic walls range between 10 graphene layers to 40 graphene layers. 10. The nanocomposite according to claim 9 , wherein the nanocomposite is Ni@N-GCFs (nitrogen-doped graphitic carbon fibers). 11. The nanocomposite according to claim 9 , wherein the nanocomposite is used in a fuel cell catalyst. 12. The nanocomposite according to claim 9 , wherein the nanocomposite is used in a battery. 13. The nanocomposite according to claim 9 , wherein the nanocomposite is used in a water purification system. 14. The nanocomposite according to claim 9 , wherein the nanocomposite is used in opto-electronics including light emitting or absorbing materials. 15. The nanocomposite according to claim 9 , wherein the nanocomposite is NiO@N-GCFs (nitrogen-doped graphitic carbon fibers).
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Classifications
Fabrics or filaments · CPC title
Photocatalytic properties · CPC title
the material being a polymer solution or dispersion (D01D5/0053 takes precedence) · CPC title
polymers of unsaturated nitriles, e.g. polyacrylonitrile, polyvinylidene cyanide · CPC title
by catalytic oxidation · CPC title
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Frequently asked questions
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- What does patent US12378699B2 cover?
- A method is disclosed for producing carbon fibers with active components such as those for oxygen reduction reactions (ORR). The method includes electrospinning a solution of polyacrylonitrile (PAN) and a transition metal into composite fibers; and annealing the composite fibers in an inert/reducing atmosphere.
- Who is the assignee on this patent?
- Univ California
- What technology area does this patent fall under?
- Primary CPC classification H01M4/9041. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Aug 05 2025 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).