Method for producing carrier for electrode catalyst, precursor of carrier for electrode catalyst, and carrier for electrode catalyst, comprising same
US-12057587-B2 · Aug 6, 2024 · US
Polymer electrolyte membrane fuel cell including complex catalyst and method for producing the complex catalyst
US9799904B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9799904-B2 |
| Application number | US-201314016687-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 3, 2013 |
| Priority date | Apr 23, 2013 |
| Publication date | Oct 24, 2017 |
| Grant date | Oct 24, 2017 |
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Abstract
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A polymer electrolyte membrane fuel cell is provided. The polymer electrolyte membrane fuel cell includes a phosphoric acid-doped polyimidazole electrolyte membrane and a complex catalyst. In the complex catalyst, an alloy or mixture of a metal and a chalcogen element is supported on a carbon carrier. The polymer electrolyte membrane fuel cell exhibits further improved long-term operation, power generation efficiency, and operational stability at high temperature. The complex catalyst can be produced by a simple method.
First claim
Opening claim text (preview).
What is claimed is: 1. A polymer electrolyte membrane fuel cell comprising a phosphoric acid-doped polyimidazole electrolyte membrane and a complex cathode catalyst, wherein the complex cathode catalyst comprises a carbon carrier and a mixture of ruthenium and a chalcogen element supported on the carbon carrier, wherein the phosphoric acid-doped polyimidazole is phosphoric-doped polybenzimidazole (PBI/PA), and wherein the ruthenium and the chalcogen element are present in an atomic ratio of 1:1.50 to 1:1.60. 2. A polymer electrolyte membrane fuel cell comprising a phosphoric acid-doped polyimidazole electrolyte membrane and a complex cathode catalyst, wherein the complex cathode catalyst comprises a carbon carrier and a mixture of ruthenium and a chalcogen element supported on the carbon carrier, wherein the phosphoric acid-doped polyimidazole is phosphoric-doped polybenzimidazole (PBI/PA), and wherein the complex cathode catalyst shows a 17 to 64% increase in oxygen reduction catalytic activity after being adsorbed by phosphoric acid.
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Classifications
- H01M8/1004Primary
characterised by membrane-electrode assemblies [MEA] (H01M8/12 takes precedence) · CPC title
Alloys or mixtures with metallic elements · CPC title
Cross-Sectional Technologies · mapped topic
Compounds thereof with non-metallic elements · CPC title
on carbon or graphite · CPC title
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- What does patent US9799904B2 cover?
- A polymer electrolyte membrane fuel cell is provided. The polymer electrolyte membrane fuel cell includes a phosphoric acid-doped polyimidazole electrolyte membrane and a complex catalyst. In the complex catalyst, an alloy or mixture of a metal and a chalcogen element is supported on a carbon carrier. The polymer electrolyte membrane fuel cell exhibits further improved long-term operation, powe…
- Who is the assignee on this patent?
- Korea Inst Sci & Tech
- What technology area does this patent fall under?
- Primary CPC classification H01M8/1004. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Oct 24 2017 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).