Carbon supported catalyst comprising a modifier and process for preparing the carbon supported catalyst
US-2018006313-A1 · Jan 4, 2018 · US
Method for preparing a carbon-supported, platinum-cobalt alloy, nanoparticle catalyst
US10854886B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10854886-B2 |
| Application number | US-201916268856-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 6, 2019 |
| Priority date | May 2, 2018 |
| Publication date | Dec 1, 2020 |
| Grant date | Dec 1, 2020 |
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Abstract
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A method for preparing a carbon-supported, platinum-cobalt alloy, nanoparticle catalyst includes mixing a solution containing, in combination, a platinum precursor, a transition metal precursor consisting of a transition metal that is cobalt, carbon, a stabilizer that is oleyl amine, and a reducing agent that is sodium borohydride to provide carbon-supported, platinum-cobalt alloy nanoparticles, and washing the carbon-supported, platinum-cobalt alloy, nanoparticles using ethanol and distilled water individually or in combination followed by drying at room temperature to obtain dried carbon-supported, platinum-cobalt alloy, nanoparticles; treating the dried carbon-supported, platinum-cobalt alloy, nanoparticles with an acetic acid solution having a concentration ranging from 1-16M to provide acetic acid-treated nanoparticles, and washing the acetic acid-treated nanoparticles using distilled water followed by drying at room temperature to obtain dried acetic acid-treated nanoparticles; and heat treating the dried acetic acid-treated nanoparticles at a temperature ranging from 600 to 1000° C. under a hydrogen-containing atmosphere.
First claim
Opening claim text (preview).
What is claimed is: 1. A method for preparing a carbon-supported, platinum-cobalt alloy, nanoparticle catalyst, comprising the steps of: (a) mixing a solution containing, in combination, a platinum precursor, a transition metal precursor consisting of a transition metal that is cobalt, carbon, a stabilizer that is oleyl amine, and a reducing agent that is sodium borohydride to provide carbon-supported, platinum-cobalt alloy, nanoparticles, and washing the carbon-supported, platinum-cobalt alloy, nanoparticles using ethanol and distilled water individually or in combination followed by drying at room temperature to obtain dried carbon-supported, platinum-cobalt alloy, nanoparticles; (b) treating the dried carbon-supported, platinum-cobalt alloy, nanoparticles with an acetic acid solution having a concentration ranging from 1-16M to provide acetic acid-treated nanoparticles, and washing the acetic-acid nanoparticles using distilled water followed by drying at room temperature to obtain dried acetic acid-treated nanoparticles; and (c) heat treating the dried acetic acid-treated nanoparticles at a temperature ranging from 600 to 1000° C. under a hydrogen-containing atmosphere.
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Fuel cells · CPC title
Positive electrodes · CPC title
Washing {(B01J37/0009, B01J37/0018 take precedence)} · CPC title
Heat treatment {(B01J37/0009, B01J37/0018 take precedence)} · CPC title
Addition of a binding agent or of material, later completely removed among others as result of heat treatment, leaching or washing,(e.g. forming of pores; protective layer, desintegrating by heat) · CPC title
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- What does patent US10854886B2 cover?
- A method for preparing a carbon-supported, platinum-cobalt alloy, nanoparticle catalyst includes mixing a solution containing, in combination, a platinum precursor, a transition metal precursor consisting of a transition metal that is cobalt, carbon, a stabilizer that is oleyl amine, and a reducing agent that is sodium borohydride to provide carbon-supported, platinum-cobalt alloy nanoparticles…
- 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 Tue Dec 01 2020 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).