Catalytic reaction process
US-2024173711-A1 · May 30, 2024 · US
Nitrogen and phosphorous doped carbon supported nanoparticle platinum electrocatalyst and method of making
US10384193B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10384193-B2 |
| Application number | US-201815933328-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 22, 2018 |
| Priority date | Mar 22, 2017 |
| Publication date | Aug 20, 2019 |
| Grant date | Aug 20, 2019 |
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Abstract
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A platinum-carbon electrocatalyst material comprising a carbon support having a minimum BET surface area of 1000 m2/g, a nitrogen content of at least 2.5 weight percent, which is present in the form of pyridine, pyridone or pyrrole, a phosphorous content of at least 3 weight percent, which is present in the form of phosphate and phosphonate, and a plurality of platinum nanoparticles dispersed on the carbon support having a maximum average particle diameter of 1.5 nm.
First claim
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What is claimed is: 1. A platinum-carbon electrocatalyst material comprising: (a) a carbon support having a minimum BET surface area of 1000 m 2 /g; (b) a nitrogen content of at least 2.5 weight percent, which is present in the form of pyridine, pyridone or pyrrole; (c) a phosphorous content of at least 3 weight percent, which is present in the form of phosphate and phosphonate; and (d) a plurality of platinum nanoparticles dispersed on the carbon support having a maximum average particle diameter of 1.5 nm. 2. The platinum-carbon electrocatalyst material of claim 1 further comprising: a DFT micropore volume from 0.3 to 0.45. 3. The platinum-carbon electrocatalyst material of claim 1 further comprising: pore widths from 1 to 100 nm. 4. The platinum-carbon electrocatalyst material of claim 3 further comprising: pore widths from 2 to 50 nm. 5. The platinum-carbon electrocatalyst material of claim 3 further comprising: pore widths in a range from 1 to 5 nm. 6. The platinum-carbon electrocatalyst material of claim 1 further comprising: a minimum BET surface area of 1400 m 2 /g. 7. A method of making a platinum-carbon electrocatalyst material comprising a carbon support having a minimum BET surface area of 1000 m 2 /g; a nitrogen content of at least 2.5 weight percent, which is present in the form of pyridine, pyridone or pyrrole; a phosphorous content of at least 3 weight percent, which is present in the form of phosphate and phosphonate; and a plurality of platinum nanoparticles dispersed on the carbon support having a maximum average particle diameter of 1.5 nm, wherein the method comprises the steps of: (a) providing a carbon support material having a minimum BET surface area of 1000 m 2 /g, a nitrogen content of at least 2.5 weight percent, which is present in the form of pyridine, pyridone or pyrrole; a phosphorous content of at least 3 weight percent, which is present in the form of phosphate and phosphonate; and (b) depositing platinum nanoparticles with a maximum average diameter of 1.5 nm onto the carbon support material using an in situ vapor-phase dissociative process.
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Classifications
- B01J23/42Primary
Platinum · CPC title
with nitrogen contained as ring member in aromatic compounds or moieties, e.g. pyridine · CPC title
Catalysts being present on the surface of the membrane or in the pores · CPC title
Physical treatment with compounds, e.g. swelling, coating or impregnation · CPC title
by deposition from the gaseous phase, e.g. CVD, PVD · CPC title
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- What does patent US10384193B2 cover?
- A platinum-carbon electrocatalyst material comprising a carbon support having a minimum BET surface area of 1000 m2/g, a nitrogen content of at least 2.5 weight percent, which is present in the form of pyridine, pyridone or pyrrole, a phosphorous content of at least 3 weight percent, which is present in the form of phosphate and phosphonate, and a plurality of platinum nanoparticles dispersed o…
- Who is the assignee on this patent?
- Tda Research Inc
- What technology area does this patent fall under?
- Primary CPC classification B01J23/42. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Aug 20 2019 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).