Skip to main content
OSTI.GOVU.S. Department of Energy Office of Scientific and Technical Information
U.S. Department of Energy
Office of Scientific and Technical Information
 

Iron-based perovskite cathodes for solid oxide fuel cells

Patent ·
OSTI ID:1176054
; ;
An A and/or A' site deficient perovskite of general formula of (A.sub.1-xA'.sub.x).sub.1-yFeO.sub.3-.delta. or of general formula A.sub.1-x-yA'.sub.xFeO.sub.3-67, wherein A is La alone or with one or more of the rare earth metals or a rare earth metal other than Ce alone or a combination of rare earth metals and X is in the range of from 0 to about 1; A' is Sr or Ca or mixtures thereof and Y is in the range of from about 0.01 to about 0.3; .delta. represents the amount of compensating oxygen loss. If either A or A' is zero the remaining A or A' is deficient. A fuel cell incorporating the inventive perovskite as a cathode is disclosed as well as an oxygen separation membrane. The inventive perovskite is preferably single phase.
Research Organization:
UChicago Argonne, LLC, Chicago, IL (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
W-31109-ENG-38;
Assignee:
UChicago Argonne, LLC (Chicago, IL)
Patent Number(s):
7,157,165
Application Number:
10/716,331
OSTI ID:
1176054
Country of Publication:
United States
Language:
English

References (11)

The effect of thermal treatment on the resistance of LSCF electrodes on gadolinia doped ceria electrolytes journal July 1996
Chemical compatibility of the LaFeO3 base perovskites (La0.6Sr0.4)zFe0.8M0.2O3 − δ (z = 1, 0.9; M = Cr, Mn, Co, Ni) with yttria stabilized zirconia journal August 1996
The Influence of Compositional Variables on the Thermodynamic Properties of Lanthanum Strontium Ferrite Manganites and Lanthanum Strontium Manganites journal July 1997
Redox behavior and transport properties of La0.5−xSr0.5−xFe0.4Ti0.6O3−δ (0 journal January 2002
Properties of A-site-deficient La0.6Sr0.4Co0.2Fe0.8O3−δ-based perovskite oxides journal November 1999
Chemical diffusion in perovskite cathodes of solid oxide fuel cells: the Sr doped LaMn1−xMxO3 (MCo, Fe) systems journal January 2001
Development of lanthanum ferrite SOFC cathodes journal January 2003
A study on PrMnO3-based perovskite oxides used in SOFC cathodes journal October 2002
Development of Solid-Oxide Fuel Cells That Operate at 500°C journal January 1999
Phase Behavior of Lanthanum Strontium Manganites journal January 1999
Changes in the Phases and Electrical Conduction Properties of (La[sub 1−x]Sr[sub x])[sub 1−y]MnO[sub 3−δ] journal January 1991

Similar Records

Support tube for high temperature solid electrolyte electrochemical cell
Patent · 1985 · OSTI ID:865895
Melt containment member
Patent · 2014 · OSTI ID:1158780
Perovskite nanocrystals and methods of making the same
Patent · 2021 · OSTI ID:1805599

Related Subjects

25 ENERGY STORAGE