Method and system for manufacturing membrane-electrode-gas diffusion layer assembly for fuel cell
US-2024136539-A1 · Apr 25, 2024 · US
Catalyst and electrode catalyst layer, membrane electrode assembly, and fuel cell using the catalyst
US2019355995A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2019355995-A1 |
| Application number | US-201916529031-A |
| Country | US |
| Kind code | A1 |
| Filing date | Aug 1, 2019 |
| Priority date | Apr 25, 2013 |
| Publication date | Nov 21, 2019 |
| Grant date | — |
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- Title
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Abstract
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Provided is a catalyst having excellent gas transportability. Disclosed is a catalyst comprising a catalyst support and a catalyst metal supported on the catalyst support, wherein the catalyst includes pores having a radius of less than 1 nm and pores having a radius of 1 nm or more, wherein a pore volume of the pores having a radius of less than 1 nm is 0.3 cc/g support or more or a mode radius of a pore distribution of the pores having a radius of less than 1 nm is 0.3 nm or more and less than 1 nm, and wherein the catalyst metal is supported inside the pores having a radius of 1 nm or more.
First claim
Opening claim text (preview).
1 . A catalyst comprising a catalyst support and a catalyst metal supported on the catalyst support, wherein the catalyst includes pores having a radius of less than 1 nm and pores having a radius of 1 nm or more, wherein a pore volume of the pores having a radius of less than 1 nm is 0.3 cc/g support to 2 cc/g support, and wherein the catalyst metal is supported inside the pores having a radius of 1 nm or more. 2 . The catalyst according to claim 1 , wherein a pore volume of the pores having a radius of less than 1 nm is 0.83 cc/g support to 2 cc/g support. 3 . The catalyst according to claim 1 , wherein a mode radius of a pore distribution of the pores having a radius of less than 1 nm is 0.3 nm or more and less than 1 nm. 4 . The catalyst according to claim 1 , wherein an average particle diameter of the catalyst metal is 3 nm or more. 5 . The catalyst according to claim 1 , wherein a pore volume of the pores having a radius of 1 nm or more is 0.4 cc/g support or more. 6 . The catalyst according to claim 1 , wherein a mode radius of a pore distribution of the pores having a radius of 1 nm or more of the catalyst is in the range of 1 to 5 nm. 7 . The catalyst according to claim 1 , wherein a BET specific surface area of the catalyst is 1000 m 2 /g support or more. 8 . The catalyst according to claim 7 , wherein a BET specific surface area of the catalyst is 1440 m 2 /g support or more. 9 . The catalyst according to claim 1 , wherein the catalyst metal is platinum or includes platinum and a metal component other than platinum. 10 . An electrode catalyst layer for fuel cell comprising the catalyst set forth in claim 1 , and an electrolyte. 11 . A membrane electrode assembly for fuel cell comprising the electrode catalyst layer for fuel cell set forth in claim 10 . 12 . A fuel cell comprising the membrane electrode assembly for fuel cell set forth in claim 11 .
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Classifications
Carbonaceous material · CPC title
on carbon or graphite · CPC title
Compounds thereof with non-metallic elements · CPC title
Alloys or mixtures with metallic elements · CPC title
- H01M4/8605Primary
Porous electrodes · CPC title
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- What does patent US2019355995A1 cover?
- Provided is a catalyst having excellent gas transportability. Disclosed is a catalyst comprising a catalyst support and a catalyst metal supported on the catalyst support, wherein the catalyst includes pores having a radius of less than 1 nm and pores having a radius of 1 nm or more, wherein a pore volume of the pores having a radius of less than 1 nm is 0.3 cc/g support or more or a mode radiu…
- Who is the assignee on this patent?
- Nissan Motor
- What technology area does this patent fall under?
- Primary CPC classification H01M4/8605. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Thu Nov 21 2019 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). 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).