Advanced materials for solid oxide fuel cells. [In/sub 2/O/sub 3/-PrO/sub 1. 83/-ZrO/sub 2/]

Conference · Thu Jan 01 00:00:00 EST 1987

OSTI ID:5534096

Griffin, C W; Bates, J L

Materials based on the In/sub 2/O/sub 3/-PrO/sub 1.83/-ZrO/sub 2/ system were examined as potential electrodes and current interconnects for solid oxide fuel cells (SOFC). The electrical transport, thermal, and electrochemical properties are described in relationship to structure, phase equilibria, and composition. The electrical conductivity was dependent on structure and composition, and can exceed the conductivity of the state-of-the-art electrode/interconnect materials. The instability of the In/sub 2/O/sub 3/ in reducing environments may eliminate this system as SOFC anodes or interconnects. This system may be used as cathodes if indium does not diffuse into the electrolyte and degrade fuel cell performance. 4 refs., 8 figs., 4 tabs.

• Research Organization: Pacific Northwest Lab., Richland, WA (USA)
• DOE Contract Number: AC06-76RL01830
• OSTI ID: 5534096
• Report Number(s): PNL-SA-14931; CONF-8705103-13; ON: DE88002338
• Resource Relation: Conference: Fossil energy materials program conference, Oak Ridge, TN, USA, 19 May 1987; Other Information: Portions of this document are illegible in microfiche products
• Country of Publication: United States
• Language: English

Related Subjects

30 DIRECT ENERGY CONVERSION
36 MATERIALS SCIENCE
ELECTRODES
FUEL CELLS
INDIUM OXIDES
ELECTRIC CONDUCTIVITY
IONIC CONDUCTIVITY
PHASE TRANSFORMATIONS
PRASEODYMIUM OXIDES
ZIRCONIUM OXIDES
BCC LATTICES
DIFFUSION
FCC LATTICES
INSTABILITY
PHASE DIAGRAMS
SEEBECK EFFECT
THERMAL EXPANSION
YTTRIUM OXIDES
CHALCOGENIDES
CRYSTAL LATTICES
CRYSTAL STRUCTURE
CUBIC LATTICES
DIAGRAMS
DIRECT ENERGY CONVERTERS
ELECTRICAL PROPERTIES
ELECTROCHEMICAL CELLS
EXPANSION
INDIUM COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
PRASEODYMIUM COMPOUNDS
RARE EARTH COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
YTTRIUM COMPOUNDS
ZIRCONIUM COMPOUNDS
300503* - Fuel Cells- Materials
Components
& Auxiliaries
360204 - Ceramics
Cermets
& Refractories- Physical Properties