Efficient reversible electrodes for solid oxide electrolyzer cells
Abstract
An electrolyzer cell is disclosed which includes a cathode to reduce an oxygen-containing molecule, such as H2O, CO2, or a combination thereof, to produce an oxygen ion and a fuel molecule, such as H2, CO, or a combination thereof. An electrolyte is coupled to the cathode to transport the oxygen ion to an anode. The anode is coupled to the electrolyte to receive the oxygen ion and produce oxygen gas therewith. In one embodiment, the anode may be fabricated to include an electron-conducting phase having a perovskite crystalline structure or structure similar thereto. This perovskite may have a chemical formula of substantially (Pr(1-x)Lax)(z-y)A'yBO(3-.differential.), wherein 0.ltoreq.x.ltoreq.0.5, 0.ltoreq.y.ltoreq.0.5, and 0.8.ltoreq.z.ltoreq.1.1. In another embodiment, the cathode includes an electron-conducting phase that contains nickel oxide intermixed with magnesium oxide.
- Inventors:
-
- South Jordan, UT
- Kaysville, UT
- Issue Date:
- Research Org.:
- Ceramatec, Inc. (Salt Lake City, UT)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1019434
- Patent Number(s):
- 7976686
- Application Number:
- US Patent Application 11/781,718
- Assignee:
- Ceramatec, Inc. (Salt Lake City, UT)
- Patent Classifications (CPCs):
-
C - CHEMISTRY C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES C25B - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01M - PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- DOE Contract Number:
- AC07-05ID14517
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 25 ENERGY STORAGE
Citation Formats
Elangovan, Singaravelu, and Hartvigsen, Joseph J. Efficient reversible electrodes for solid oxide electrolyzer cells. United States: N. p., 2011.
Web.
Elangovan, Singaravelu, & Hartvigsen, Joseph J. Efficient reversible electrodes for solid oxide electrolyzer cells. United States.
Elangovan, Singaravelu, and Hartvigsen, Joseph J. Tue .
"Efficient reversible electrodes for solid oxide electrolyzer cells". United States. https://www.osti.gov/servlets/purl/1019434.
@article{osti_1019434,
title = {Efficient reversible electrodes for solid oxide electrolyzer cells},
author = {Elangovan, Singaravelu and Hartvigsen, Joseph J},
abstractNote = {An electrolyzer cell is disclosed which includes a cathode to reduce an oxygen-containing molecule, such as H2O, CO2, or a combination thereof, to produce an oxygen ion and a fuel molecule, such as H2, CO, or a combination thereof. An electrolyte is coupled to the cathode to transport the oxygen ion to an anode. The anode is coupled to the electrolyte to receive the oxygen ion and produce oxygen gas therewith. In one embodiment, the anode may be fabricated to include an electron-conducting phase having a perovskite crystalline structure or structure similar thereto. This perovskite may have a chemical formula of substantially (Pr(1-x)Lax)(z-y)A'yBO(3-.differential.), wherein 0.ltoreq.x.ltoreq.0.5, 0.ltoreq.y.ltoreq.0.5, and 0.8.ltoreq.z.ltoreq.1.1. In another embodiment, the cathode includes an electron-conducting phase that contains nickel oxide intermixed with magnesium oxide.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jul 12 00:00:00 EDT 2011},
month = {Tue Jul 12 00:00:00 EDT 2011}
}
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