Composite oxide for solid oxide fuel cell and method for preparation thereof
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
May 6, 2008
Grant Date -
Feb 10, 2005
app pub date -
Nov 15, 2002
filing date -
Nov 15, 2001
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
The present invention provides a composite oxide for a high performance solid oxide fuel cell which can be fired at a relatively low temperature, and which has little heterogeneous phases of impurities other than the desired composition. The composite oxide is the one having a perovskite type crystal structure containing rare earth elements, and having constituent elements homogeneously dispersed therein. A homogeneous composite oxide having an abundance ratio of heterogeneous phases of at most 0.3% by average area ratio, and a melting point of at least 1470.degree. C., is obtained by using metal carbonates, oxides or hydroxides, and reacting them with citric acid in an aqueous system.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
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