Non-noble element catalysts and methods for making
US-10391475-B2 · Aug 27, 2019 · US
Non-noble element catalysts and methods for making
US2019336943A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2019336943-A1 |
| Application number | US-201916502011-A |
| Country | US |
| Kind code | A1 |
| Filing date | Jul 2, 2019 |
| Priority date | Nov 30, 2014 |
| Publication date | Nov 7, 2019 |
| Grant date | — |
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- Title
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Abstract
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Disclosed are non-noble element compositions of matter, structures, and methods for producing the catalysts that can catalyze oxygen reduction reactions (ORR). The disclosed composition of matter can be comprised of graphitic carbon doped with nitrogen and associated with one or two kinds of transition metals. The disclosed structure is a three dimensional, porous structure comprised of a plurality of the disclosed compositions of matter. The disclosed structure can be fashioned into an electrode of an electrochemical cell to serve as a diffusion layer and also to catalyze an ORR. Two methods are disclosed for producing the disclosed composition of matter and structure. The first method is comprised of two steps, and the second method is comprised of a single step.
First claim
Opening claim text (preview).
What is claimed is: 1 . A sponge-like porous self-assembled structure comprising graphitic carbon doped with a nitrogen source and a compound containing a transition metal. 2 . The structure of claim 1 , wherein the transition metal is coordinated with nitrogen. 3 . The structure of claim 2 , wherein the transition metal is iron. 4 . The structure of claim 1 , wherein the graphitic carbon is graphene. 5 . The structure of claim 1 , wherein the graphitic carbon is a carbon nanotube. 6 . The structure of claim 5 , wherein the carbon nanotube is a single-walled carbon nanotube or a multi-walled carbon nanotube. 7 . The structure of claim 1 , wherein the nitrogen source is selected from the group consisting of pyridine and polyaniline. 8 . The structure of claim 1 , wherein the compound containing a transition metal is ferrocene. 9 . The structure of claim 1 , wherein the structure catalyzes an oxygen reduction reaction. 10 . The structure of claim 1 , wherein the structure is stable in acidic and basic solutions. 11 . The structure of claim 1 , wherein the structure is an electrode of an electrochemical cell. 12 . The structure of claim 1 , wherein the porous structure comprises a membrane for gas diffusion. 13 . The structure of claim 5 , wherein the structure comprises a plurality of carbon nanotubes. 14 . The structure of claim 13 , wherein the carbon nanotobes are randomly oriented. 15 . The structure of claim 13 , wherein the carbon nanotubes are entangled.
Assignees
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Classifications
Carbon-based electrodes · CPC title
Preparation · CPC title
Porous electrodes · CPC title
Fuel cells with polymeric electrolytes · CPC title
Vapour deposition · CPC title
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- What does patent US2019336943A1 cover?
- Disclosed are non-noble element compositions of matter, structures, and methods for producing the catalysts that can catalyze oxygen reduction reactions (ORR). The disclosed composition of matter can be comprised of graphitic carbon doped with nitrogen and associated with one or two kinds of transition metals. The disclosed structure is a three dimensional, porous structure comprised of a plura…
- Who is the assignee on this patent?
- Texas A & M Univ Sys
- What technology area does this patent fall under?
- Primary CPC classification B01J21/185. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Thu Nov 07 2019 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 2 related publications on this page (citations in our corpus or others sharing the same primary CPC).