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Oxide-ion conducting ceramics for solid oxide fuel cells.
- Source :
- Journal of Materials Science; Mar2001, Vol. 36 Issue 5, p1093-1098, 6p
- Publication Year :
- 2001
-
Abstract
- Realization of a solid oxide fuel cell (SOFC) operating at 700°C on a hydrocarbon fuel or gaseous H<subscript>2</subscript> is an outstanding technical target. For the past 25 years, efforts to achieve this goal have been based on yttria-stabilized zirconia as the electrolyte, a NiO + electrolyte composite as the anode, a porous La<subscript>0.85</subscript>Sr<subscript>0.15</subscript>MnO<subscript>3</subscript> (LSM) metallic perovskite as the cathode, and a La<subscript>1− x</subscript>Sr<subscript> x</subscript>CrO<subscript>3</subscript> ceramic as the interconnect material. This paper reviews progress in our laboratory on an alternate approach that would use a Sr- and Mg- doped LaGaO<subscript>3</subscript> perovskite as the electrolyte, a Sm-doped ceria (SDC) as the anode or as a buffer layer with a NiO + SDC composite as the anode, a mixed oxide-ion/electronic conductor (MIEC) as the cathode, and a stainless steel as the metallic interconnect. [ABSTRACT FROM AUTHOR]
- Subjects :
- SOLID oxide fuel cells
ELECTRONIC ceramics
ZIRCONIUM oxide
ELECTROLYTES
PEROVSKITE
Subjects
Details
- Language :
- English
- ISSN :
- 00222461
- Volume :
- 36
- Issue :
- 5
- Database :
- Complementary Index
- Journal :
- Journal of Materials Science
- Publication Type :
- Academic Journal
- Accession number :
- 52538165
- Full Text :
- https://doi.org/10.1023/A:1004813305237