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
Carbon support for fuel cell catalyst and preparation method thereof
US2017005342A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2017005342-A1 |
| Application number | US-201514979877-A |
| Country | US |
| Kind code | A1 |
| Filing date | Dec 28, 2015 |
| Priority date | Jul 1, 2015 |
| Publication date | Jan 5, 2017 |
| Grant date | — |
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Abstract
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Disclosed is a carbon support for a fuel cell catalyst that supports a metal. The carbon support includes a conductive carbon support and nitrogen atoms doped into the conductive carbon support. Also disclosed is a method for preparing the carbon support. Also disclosed is a catalyst including the carbon support. The catalyst has greatly improved degradation resistance compared to conventional catalysts for fuel cells. In addition, the catalyst is not substantially degraded even when applied to a single cell.
First claim
Opening claim text (preview).
What is claimed is: 1 . A method for preparing a carbon support for a fuel cell catalyst, the method comprising: (A) mixing a conductive carbon support with a nitrogen-containing organic material; (B) primarily annealing the mixture; and (C) secondarily annealing the primarily annealed mixture at a temperature higher than the primary annealing temperature under a nitrogen atmosphere. 2 . The method according to claim 1 , wherein, in step (A), the conductive carbon support is mixed with the nitrogen-containing organic material in a weight ratio of 1:0.5-3. 3 . The method according to claim 1 , wherein, in step (A), the conductive carbon support and the nitrogen-containing organic material are dissolved in at least one solvent selected from the group consisting of distilled water and methanol, ethanol, and ethylene glycol as organic solvents. 4 . The method according to claim 1 , wherein, in step (A), the conductive carbon support is selected from the group consisting of carbon black, acetylene black, carbon nanotubes (CNTs), graphite, graphene, graphite nanofibers (GNFs), fullerenes, and combinations thereof. 5 . The method according to claim 1 , wherein, in step (A), the nitrogen-containing organic material is selected from the group consisting of dicyandiamide, pyrrole, aniline, phthalocyanine, porphyrin, acetonitrile, cyanamide, acrylonitrile, polypyrrole, polyaniline, polyacrylonitrile, melamine, and mixtures thereof. 6 . The method according to claim 1 , wherein, in step (B), the primary annealing is performed in ambient air. 7 . The method according to claim 1 , wherein, in step (B), the primary annealing is performed at 90 to 150° C. 8 . The method according to claim 1 , wherein, in step (C), the secondary annealing is performed at 600 to 750° C.
Assignees
Inventors
Classifications
- H01M4/926Primary
on carbon or graphite · CPC title
on carbon or graphite · CPC title
- H01M4/8817Primary
Treatment of supports before application of the catalytic active composition (coated porous composites H01M8/0245) · CPC title
Composition of support materials · CPC title
Nitrogen compounds · CPC title
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- What does patent US2017005342A1 cover?
- Disclosed is a carbon support for a fuel cell catalyst that supports a metal. The carbon support includes a conductive carbon support and nitrogen atoms doped into the conductive carbon support. Also disclosed is a method for preparing the carbon support. Also disclosed is a catalyst including the carbon support. The catalyst has greatly improved degradation resistance compared to conventional …
- Who is the assignee on this patent?
- Korea Inst Sci & Tech
- What technology area does this patent fall under?
- Primary CPC classification H01M4/926. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Thu Jan 05 2017 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).