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US-2023395814-A1 · Dec 7, 2023 · US
Palladium-transition metal core-based core-shell electrode catalyst and manufacturing method for the same
US12567592B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12567592-B2 |
| Application number | US-202318161941-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jan 31, 2023 |
| Priority date | May 18, 2022 |
| Publication date | Mar 3, 2026 |
| Grant date | Mar 3, 2026 |
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- Title
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Abstract
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The manufacturing method of a palladium transition metal core-based core-shell electrode catalyst according to an exemplary embodiment of the present disclosure includes a first step of preparing a slurry by irradiating ultrasonic wave to a dispersion solution including a solvent, a platinum precursor, a palladium precursor, a carbon support, and a transition metal precursor, a second step of preparing a solid material by filtering, washing, and drying the slurry prepared in the first step, and a third step of preparing a core-shell electrode catalyst by thermally treating the solid prepared in the second step in a specific gas atmosphere.
First claim
Opening claim text (preview).
What is claimed is: 1 . A manufacturing method of a palladium-transition metal core-based core-shell electrode catalyst, comprising: a first step of preparing a slurry by irradiating ultrasonic wave to a dispersion solution including a solvent, a platinum precursor, a palladium precursor, a carbon support, and a transition metal precursor; a second step of preparing a solid material by filtering, washing, and drying the slurry prepared in the first step; and a third step of preparing a core-shell electrode catalyst by thermally treating the solid material prepared in the second step at about 510° C. under a mixed gas atmosphere comprising ammonia (NH 3 ) and nitrogen (N 2 ). 2 . The manufacturing method of a palladium-transition metal core-based core-shell electrode catalyst according to claim 1 , wherein a transition metal in the transition metal precursor is any one or more selected from the group consisting of cobalt (Co), nickel (Ni), manganese (Mn), and iron (Fe). 3 . A palladium-transition metal core-based core-shell electrode catalyst manufactured by the method according to claim 1 . 4 . The palladium-transition metal core-based core-shell electrode catalyst according to claim 3 , wherein an average particle size of the palladium-transition metal core-based core-shell electrode catalyst is 2.2 to 4.1 nm. 5 . The palladium-transition metal core-based core-shell electrode catalyst according to claim 3 , wherein the palladium-transition metal core-based core-shell electrode catalyst has 0.5 to 0.75 A/mgPGM of an activity per mass (mass activity) and 1160 to 1400 μAcm −2 of an activity per unit area (specific activity).
Assignees
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Classifications
- H01M4/8657Primary
layered · CPC title
of noble metals or noble-metal based alloys · CPC title
Egg shell like · CPC title
Egg yolk like · CPC title
on carbon or graphite · CPC title
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- What does patent US12567592B2 cover?
- The manufacturing method of a palladium transition metal core-based core-shell electrode catalyst according to an exemplary embodiment of the present disclosure includes a first step of preparing a slurry by irradiating ultrasonic wave to a dispersion solution including a solvent, a platinum precursor, a palladium precursor, a carbon support, and a transition metal precursor, a second step of p…
- Who is the assignee on this patent?
- Korea Inst Energy Res
- What technology area does this patent fall under?
- Primary CPC classification H01M4/8657. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Mar 03 2026 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 2 related publications on this page (citations in our corpus or others sharing the same primary CPC).