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
Carbon catalyst and process for production thereof, and electrode and battery each equipped with same
US8999874B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8999874-B2 |
| Application number | US-201113881456-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 1, 2011 |
| Priority date | Nov 8, 2010 |
| Publication date | Apr 7, 2015 |
| Grant date | Apr 7, 2015 |
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- Title
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Abstract
Official abstract text for this publication.
Provided is a carbon catalyst having an improved catalytic activity, a production method therefor, and an electrode and a battery which use the carbon catalyst. The carbon catalyst is obtained by carbonizing a raw material including an organic substance containing a nitrogen atom and metals, and includes iron and/or cobalt, and copper as the metals. Further, the carbon catalyst has a crystallinity of 41.0% or less, which is determined by X-ray diffractometry, a nitrogen atom-to-carbon atom ratio of 0.7 or more, which is determined by X-ray photoelectronic spectrometry, and an oxygen reduction-starting potential of 0.774 V (vs. NHE) or more.
First claim
Opening claim text (preview).
The invention claimed is: 1. A carbon catalyst having a shell-like structure and a crystallinity of from 5.0% to 41.0% as determined by X-ray diffractometry, wherein the carbon catalyst is obtained by carbonizing a raw material, the raw material including: an organic substance containing a nitrogen atom; and metals, the metals comprising copper and at least one of iron and cobalt, wherein a ratio of a content of copper to a total content of copper, iron, and cobalt in the raw m…
Assignees
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Classifications
Cross-Sectional Technologies · mapped topic
- H01M4/9041Primary
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
- B01J23/745Primary
Operations & Transport · mapped topic
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Frequently asked questions
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- What does patent US8999874B2 cover?
- Provided is a carbon catalyst having an improved catalytic activity, a production method therefor, and an electrode and a battery which use the carbon catalyst. The carbon catalyst is obtained by carbonizing a raw material including an organic substance containing a nitrogen atom and metals, and includes iron and/or cobalt, and copper as the metals. Further, the carbon catalyst has a crystallin…
- Who is the assignee on this patent?
- Kishimoto Takeaki, Mizushiri Mayumi, Ozaki Jun-Ichi, and 4 more
- What technology area does this patent fall under?
- Primary CPC classification H01M4/9041. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Apr 07 2015 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).