Method for manufacturing core-shell particles using carbon monoxide
US-11791475-B2 · Oct 17, 2023 · US
Method for manufacturing core-shell catalyst using carbon monoxide
US12206117B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12206117-B2 |
| Application number | US-202318465471-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 12, 2023 |
| Priority date | Sep 7, 2020 |
| Publication date | Jan 21, 2025 |
| Grant date | Jan 21, 2025 |
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- Title
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Abstract
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The present disclosure relates to a method for manufacturing core-shell particles using carbon monoxide, and more particularly, to a method for manufacturing core-shell particles, the method of which a simple and fast one-pot reaction enables particle manufacturing to reduce process costs, facilitate scale-up, change various types of core and shell metals, and form a multi-layered shell by including the steps of adsorbing carbon monoxide on a transition metal for a core, and reacting carbon monoxide adsorbed on the surface of the transition metal for the core, a metal precursor for a shell, and a solvent to form particles with a core-shell structure having a reduced metal shell layer formed on a transition metal core.
First claim
Opening claim text (preview).
What is claimed is: 1. A method for manufacturing core-shell particles using carbon monoxide, the method comprising steps of: adsorbing the carbon monoxide on a transition metal for a core; and reacting the carbon monoxide adsorbed on the surface of the transition metal for the core, a metal precursor for a shell, and a solvent, and forming particles of a core-shell structure having a reduced metal shell layer formed on a transition metal core; wherein the transition metal for the core is selected from the group consisting of palladium (Pd), iridium (Ir), and ruthenium (Ru), the metal precursor for the shell is a divalent platinum precursor, and the reduced metal shell layer formed on the transition metal core is Pt single-layer. 2. The method of claim 1 , wherein the solvent is ultrapure water or C 1 -C 6 alcohol. 3. The method of claim 1 , wherein the step of adsorbing carbon monoxide on the transition metal for the core includes sequentially performing a primary nitrogen purge, a carbon monoxide purge, and a secondary nitrogen purge on a transition metal solution for the core. 4. The method of claim 3 , wherein the step of forming particles of the core-shell structure includes adjusting the pH of the transition metal solution for the core to 10 to 12. 5. The method of claim 1 , wherein the step of forming particles of the core-shell structure is repeatedly performed to form a multi-layer metal shell.
Assignees
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Classifications
Egg shell like · CPC title
Tungsten · CPC title
Molybdenum · CPC title
Manganese · CPC title
Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts · CPC title
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- What does patent US12206117B2 cover?
- The present disclosure relates to a method for manufacturing core-shell particles using carbon monoxide, and more particularly, to a method for manufacturing core-shell particles, the method of which a simple and fast one-pot reaction enables particle manufacturing to reduce process costs, facilitate scale-up, change various types of core and shell metals, and form a multi-layered shell by incl…
- 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 Jan 21 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 4 related publications on this page (citations in our corpus or others sharing the same primary CPC).