Gas Diffusion Electrodes and Methods for Fabricating and Testing Same
US-2015376803-A1 · Dec 31, 2015 · US
Catalyst for solid polymer fuel cell and method for manufacturing the same
US9905859B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9905859-B2 |
| Application number | US-201414764247-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jan 31, 2014 |
| Priority date | Feb 4, 2013 |
| Publication date | Feb 27, 2018 |
| Grant date | Feb 27, 2018 |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
The invention is a catalyst for solid polymer fuel cell having catalyst particles composed of platinum, cobalt and magnesium supported on a carbon powder carrier, in which a composition ratio (molar ratio) among platinum, cobalt and magnesium in the catalyst particles is Pt:Co:Mg=1:0.4 to 0.5:0.00070 to 0.00095. This catalyst is manufactured by supporting cobalt and magnesium on a platinum catalyst and then conducting a heat treatment and a treatment to be brought into contact with an oxidizing solution, the feature of the catalyst manufactured in this manner includes a peak position of a main peak appearing between 2θ=40° and 42° in X-ray diffraction analysis, and the peak position is shifted to from 41.0° to 41.5°.
First claim
Opening claim text (preview).
The invention claimed is: 1. A catalyst for solid polymer fuel cell having catalyst particles comprising platinum, cobalt and magnesium supported on a carbon powder carrier, wherein a composition ratio (molar ratio) among platinum, cobalt and magnesium in the catalyst particles is Pt:Co:Mg=1:0.4 to 0.5:0.00070 to 0.00095, the catalyst particles having an X-ray diffraction pattern comprising a highest peak around 2θ=41.0°-41.5°. 2. The catalyst for solid polymer fuel cell according to claim 1 , wherein a supporting density, which is a mass of the catalyst particles supported on the carbon powder carrier with respect to an entire mass of the catalyst, is from 30 to 70%.
Assignees
Inventors
Classifications
Operations & Transport · mapped topic
Positive electrodes · CPC title
Fuel cells with polymeric electrolytes · CPC title
- H01M4/921Primary
Alloys or mixtures with metallic elements · CPC title
Polymeric electrolyte materials · CPC title
Patent family
Related publications grouped by family.
External sources
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US9905859B2 cover?
- The invention is a catalyst for solid polymer fuel cell having catalyst particles composed of platinum, cobalt and magnesium supported on a carbon powder carrier, in which a composition ratio (molar ratio) among platinum, cobalt and magnesium in the catalyst particles is Pt:Co:Mg=1:0.4 to 0.5:0.00070 to 0.00095. This catalyst is manufactured by supporting cobalt and magnesium on a platinum cata…
- Who is the assignee on this patent?
- Tanaka Precious Metal Ind
- What technology area does this patent fall under?
- Primary CPC classification H01M4/921. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Feb 27 2018 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).