skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Iron-based perovskite cathodes for solid oxide fuel cells

Abstract

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.

Inventors:
; ;
Publication Date:
Research Org.:
UChicago Argonne, LLC, Chicago, IL (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1176054
Patent Number(s):
7,157,165
Application Number:
10/716,331
Assignee:
UChicago Argonne, LLC (Chicago, IL) ANL
DOE Contract Number:
W-31-109-ENG-38
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
25 ENERGY STORAGE

Citation Formats

Ralph, James M., Rossignol, Cecile C.R., and Vaughey, John T.. Iron-based perovskite cathodes for solid oxide fuel cells. United States: N. p., 2007. Web.
Ralph, James M., Rossignol, Cecile C.R., & Vaughey, John T.. Iron-based perovskite cathodes for solid oxide fuel cells. United States.
Ralph, James M., Rossignol, Cecile C.R., and Vaughey, John T.. Tue . "Iron-based perovskite cathodes for solid oxide fuel cells". United States. doi:. https://www.osti.gov/servlets/purl/1176054.
@article{osti_1176054,
title = {Iron-based perovskite cathodes for solid oxide fuel cells},
author = {Ralph, James M. and Rossignol, Cecile C.R. and Vaughey, John T.},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jan 02 00:00:00 EST 2007},
month = {Tue Jan 02 00:00:00 EST 2007}
}

Patent:

Save / Share: