Active Support for Cathode Catalysts
US-2015380741-A1 · Dec 31, 2015 · US
Catalyst and manufacturing method thereof, and electrode catalyst layer using the catalyst
US2016072134A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2016072134-A1 |
| Application number | US-201414786056-A |
| Country | US |
| Kind code | A1 |
| Filing date | Apr 14, 2014 |
| Priority date | Apr 25, 2013 |
| Publication date | Mar 10, 2016 |
| Grant date | — |
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- Title
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Abstract
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[Object] Provided is a catalyst having a high catalytic activity. [Solving Means] Disclosed is a catalyst comprising a catalyst support and a catalyst metal supported on the catalyst support, wherein the catalyst support includes pores having a radius of less than 1 nm and pores having a radius of 1 nm or more, a surface area formed by the pores having a radius of less than 1 nm is equal to or larger than a surface area formed by the pores having a radius of 1 nm or more, and an average particle diameter of the catalyst metal is 2.8 nm or more.
First claim
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1 .- 6 . (canceled) 7 . An electrode catalyst for fuel cell, comprising a catalyst support and a catalyst metal supported on the catalyst support, wherein the catalyst support includes pores having a radius of less than 1 nm and pores having a radius of 1 nm or more, wherein a surface area formed by the pores having a radius of less than 1 nm is equal to or larger than a surface area formed by the pores having a radius of 1 nm or more, and wherein an average particle diameter of the catalyst metal is 2.8 nm or more. 8 . The electrode catalyst for fuel cell according to claim 7 , wherein the catalyst support has a BET specific surface area of 1000 m 2 /g support or more. 9 . The electrode catalyst for fuel cell according to claim 7 , wherein the catalyst metal is platinum or includes platinum and a metal component other than platinum. 10 . The electrode catalyst for fuel cell according to claim 7 , wherein the average particle diameter of the catalyst metal is 4.1 rim or more. 11 . A method for manufacturing the catalyst set forth in claim 7 , which comprises precipitating a catalyst metal on a surface of a catalyst support, and after the precipitating, performing heat treatment to increase a particle diameter of the catalyst metal. 12 . An electrode catalyst layer for fuel cell, comprising the catalyst set forth in claim 7 , and an electrolyte.
Assignees
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Classifications
Sintering or firing · CPC title
Fuel cells with polymeric electrolytes · CPC title
on carbon or graphite · CPC title
followed by reduction of the catalyst salt precursor · CPC title
- H01M4/9075Primary
Catalytic material supported on carriers, e.g. powder carriers (H01M4/8807, H01M4/881, H01M4/8814, H01M4/925 take precedence) · CPC title
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- What does patent US2016072134A1 cover?
- [Object] Provided is a catalyst having a high catalytic activity. [Solving Means] Disclosed is a catalyst comprising a catalyst support and a catalyst metal supported on the catalyst support, wherein the catalyst support includes pores having a radius of less than 1 nm and pores having a radius of 1 nm or more, a surface area formed by the pores having a radius of less than 1 nm is equal to or …
- Who is the assignee on this patent?
- Nissan Motor, Tanaka Precious Metal Ind
- What technology area does this patent fall under?
- Primary CPC classification H01M4/9075. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Thu Mar 10 2016 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).