Apparatus comprising manganese-cobalt spinel oxide/carbon catalyst
US-2020295380-A1 · Sep 17, 2020 · US
Alkaline fuel cell electrode catalyst, alkaline fuel cell, and methods of making and using an electrode catalyst
US12512484B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12512484-B2 |
| Application number | US-202218081485-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 14, 2022 |
| Priority date | Feb 15, 2022 |
| Publication date | Dec 30, 2025 |
| Grant date | Dec 30, 2025 |
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Abstract
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A fuel cell catalyst, including: one or more substantially monodisperse nanocrystals, wherein the one or more substantially monodisperse nanocrystals include an octahedral morphology or nanocrystal geometry including eight exclusively exposed {101} facets. In embodiments, a cathode including the fuel cell catalyst is also provided, including methods of making the fuel cell catalyst.
First claim
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What is claimed: 1 . A fuel cell catalyst, comprising: one or more substantially monodisperse CoMn 2 O 4 or CuMn 2 O 4 nanocrystals, wherein the one or more substantially monodisperse CoMn 2 O 4 or CuMn 2 O 4 nanocrystals comprise an octahedral morphology comprising eight exclusively exposed {101} facets. 2 . The fuel cell catalyst of claim 1 , wherein the one or more substantially monodisperse CoMn 2 O 4 or CuMn 2 O 4 nanocrystals have an average diameter of about 9 nm, and a monodispersity having a deviation of less than approximately ±1.0 nm. 3 . The fuel cell catalyst of claim 1 , wherein the one or more substantially monodisperse CoMn 2 O 4 or CuMn 2 O 4 nanocrystals are characterized as highly-efficient spinel oxide electrocatalysts toward ORR in alkaline media. 4 . The fuel cell catalyst of claim 1 , wherein the one or more substantially monodisperse CoMn 2 O 4 or CuMn 2 O 4 nanocrystals reach a maximum oxygen reduction reaction (ORR) mass activity in an alkaline media. 5 . The fuel cell catalyst of claim 1 , wherein the one or more substantially monodisperse CoMn 2 O 4 nanocrystals yield a high mass activity (MA) up to 60.0 A/g at 0.85 V, or the one or more substantially monodisperse CuMn 2 O 4 nanocrystals yield a high mass activity (MA) up to 37.6 A/g at 0.85 V. 6 . A cathode for an alkaline fuel cell, comprising: a fuel cell catalyst in accordance with claim 1 . 7 . An alkaline fuel cell, comprising: the cathode of claim 6 . 8 . A fuel cell catalyst, comprising: one or more substantially monodisperse CoMn 2 O 4 , CuMn 2 O 4 , ZnMn 2 O 4 , MgMn 2 O 4 , or NiMn 2 O 4 nanocrystals, wherein the one or more substantially monodisperse CoMn 2 O 4 , CuMn 2 O 4 , ZnMn 2 O 4 , MgMn 2 O 4 , or NiMn 2 O 4 nanocrystals are characterized as {101} facet terminated nano-octahedra spinel nanocrystals. 9 . The fuel cell catalyst of claim 8 , wherein the one or more substantially monodisperse CoMn 2 O 4 , CuMn 2 O 4 , ZnMn 2 O 4 , MgMn 2 O 4 , or NiMn 2 O 4 nanocrystals reach a maximum oxygen reduction reaction (ORR) mass activity in an alkaline media. 10 . A cathode for an alkaline fuel cell, comprising: a fuel cell catalyst in accordance with claim 8 . 11 . An alkaline fuel cell, comprising: the cathode of claim 10 .
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Classifications
Heat treatment, e.g. drying, baking · CPC title
- H01M8/083Primary
Alkaline fuel cells · CPC title
Positive electrodes · CPC title
- H01M4/9016Primary
Oxides, hydroxides or oxygenated metallic salts · CPC title
Fuel cells · CPC title
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- What does patent US12512484B2 cover?
- A fuel cell catalyst, including: one or more substantially monodisperse nanocrystals, wherein the one or more substantially monodisperse nanocrystals include an octahedral morphology or nanocrystal geometry including eight exclusively exposed {101} facets. In embodiments, a cathode including the fuel cell catalyst is also provided, including methods of making the fuel cell catalyst.
- Who is the assignee on this patent?
- Univ New York State Res Found
- What technology area does this patent fall under?
- Primary CPC classification H01M8/083. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Dec 30 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 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).