Electrode catalyst layer for fuel cell, and fuel cell membrane electrode assembly and fuel cell using the catalyst layer
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jul 14, 2020
Grant Date -
Nov 23, 2017
app pub date -
Oct 8, 2015
filing date -
Oct 29, 2014
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Provided is a catalyst layer for fuel cell which has a high catalytic activity and enables maintaining the high catalytic activity. Disclosed is an electrode catalyst layer for fuel cell including a catalyst containing a catalyst carrier having carbon as a main component and a catalytic metal supported on the catalyst carrier, and a polymer electrolyte having a sulfonic acid group (—SO3H) as an ion exchange group, in which the catalyst has the R′ (D′/G intensity ratio) of 0.6 or less, which is the ratio of D′ band peak intensity (D′ intensity) measured in the vicinity of 1620 cm−1 relative to G band peak intensity (G intensity) measured in the vicinity of 1580 cm−1 by Raman spectroscopy, and has BET specific surface area of 900 m2/g catalyst carrier or more, and mole number of a sulfonic acid group in the polymer electrolyte relative to weight of the catalyst carrier is 0.7 mmol/g or more and 1.0 mmol/g or less.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully