Method and apparatus for selectively removing oxygen using a non-catalytic electrode in an electrochemical cell
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
May 20, 2003
Grant Date -
Aug 15, 2002
app pub date -
Dec 14, 2000
filing date -
Dec 14, 2000
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method and apparatus for selectively removing oxygen from a gas stream containing NO.sub.x and oxygen by contacting the gas stream with an electrochemical cell made from an electrode consisting of La.sub.1-X M.sub.X FeO.sub.3, (where M is selected from the group consisting of Sr, Ba, Ca, and combinations thereof, and X is between 0.05 and 0.5), a solid oxide electrolyte and a counter electrode, wherein the La.sub.1-X M.sub.X FeO.sub.3 electrode is on one side of a solid oxide electrolyte, and a counter electrode is on the opposite side of the solid oxide electrolyte, and applying a voltage to the electrochemical cell. The apparatus is preferably employed in a two chambered NO.sub.x sensor utilizing solid electrolyte electrochemical cells, wherein an electrochemical cell capable of catalyzing oxygen reduction without catalyzing NO.sub.x decomposition is formed as integral to the first chamber.
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