Carbon based materials as solid-state ligands for metal nanoparticle catalysts
US-11219892-B2 · Jan 11, 2022 · US
Platinum oxide nanoparticles for electrochemical hydrogen evolution and methods for making and using the same
US11767602B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11767602-B2 |
| Application number | US-202017076004-A |
| Country | US |
| Kind code | B2 |
| Filing date | Oct 21, 2020 |
| Priority date | Oct 22, 2019 |
| Publication date | Sep 26, 2023 |
| Grant date | Sep 26, 2023 |
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Abstract
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The catalyst composition includes graphitic carbon nitride and a plurality of platinum oxide nanoparticles disposed on the graphitic carbon nitride.
First claim
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What is claimed is: 1. A catalyst composition comprising: graphitic carbon nitride; and a plurality of platinum oxide nanoparticles disposed on the graphitic carbon nitride, having a platinum loading from about 25% to about 35% by weight of the catalyst composition. 2. The catalyst composition according to claim 1 , wherein each of the plurality of platinum oxide nanoparticles is from about 1.0 nm to about 4.4 nm. 3. The catalyst composition according to claim 1 , wherein the plurality of platinum oxide nanoparticles have an average particle diameter from about 1.0 nm to about 3.0 nm. 4. A catalyst composition comprising: graphitic carbon nitride; and a plurality of platinum oxide nanoparticles disposed on the graphitic carbon nitride, wherein the plurality of platinum oxide nanoparticles includes platinum 4+ species and platinum 2+ species. 5. The catalyst composition according to claim 4 , wherein the platinum 4+ species and the platinum 2+ species are present at a ratio from about 1.5:1 to about 1.75:1. 6. A catalyst composition comprising: graphitic carbon nitride; and a plurality of platinum oxide nanoparticles disposed on the graphitic carbon nitride, having an overpotential for reaching a current density of about 10 mA cm −2 from about −5 mV to about −10 mV.
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by electrolysis of water · CPC title
- C25B11/052Primary
Electrodes comprising one or more electrocatalytic coatings on a substrate · CPC title
Inorganic compound e.g. ITO, silica or titania · CPC title
consisting of a single catalytic element or catalytic compound · CPC title
Electrodes comprising electrocatalysts supported on a carrier · CPC title
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Frequently asked questions
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- What does patent US11767602B2 cover?
- The catalyst composition includes graphitic carbon nitride and a plurality of platinum oxide nanoparticles disposed on the graphitic carbon nitride.
- Who is the assignee on this patent?
- Univ California
- What technology area does this patent fall under?
- Primary CPC classification C25B11/052. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Sep 26 2023 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).