The transported entropy of oxygen ion in yttria-stabilized zirconia
Journal Article
·
· Journal of the Electrochemical Society; (United States)
- Div. of Physical Chemistry, Norwegian Inst. of Technology, Univ. of Trondheim, N-7034 Trondheim-NTH (NO)
- Div. of Inorganic Chemistry, Norwegian Inst. of Technology, Univ. of Trondheim, N-7034 Trondheim-NTH (NO)
This paper reports that the transported entropy of oxygen ion S*{sub O{sup 2}}-, in yttria-stabilized zirconia (YSZ) has been determined from measurements of Seebeck coefficients of the cell (T{sub 1},p)(Pt)O{sub 2}(g){vert bar}YSZ{vert bar}O{sub 2}(g)(Pt)(T{sub 2},p). The value obtained, 51 J K{sup {minus}1} F{sup {minus}1}, is substantially different from results for YSZ which can be calculated from other investigations. The value does not vary with oxygen pressure, in accordance with results obtained for calcia-stabilized zirconia. The results indicate that the sintering temperature for YSZ is important for obtaining uniform temperature conditions in fuel cells.
- OSTI ID:
- 7071607
- Journal Information:
- Journal of the Electrochemical Society; (United States), Journal Name: Journal of the Electrochemical Society; (United States) Vol. 138:8; ISSN JESOA; ISSN 0013-4651
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
30 DIRECT ENERGY CONVERSION
300302 -- Thermoelectric Generators-- Performance & Testing
300502 -- Fuel Cells-- Performance & Testing
300505* -- Fuel Cells-- Electrochemistry
Mass Transfer & Thermodynamics
36 MATERIALS SCIENCE
360204 -- Ceramics
Cermets
& Refractories-- Physical Properties
ALLOYS
CHALCOGENIDES
CHARGED PARTICLES
DIRECT ENERGY CONVERTERS
ELECTROCHEMICAL CELLS
ENTROPY
FABRICATION
FUEL CELLS
IONS
OXIDES
OXYGEN COMPOUNDS
OXYGEN IONS
PHYSICAL PROPERTIES
SEEBECK EFFECT
SINTERING
SOLID ELECTROLYTE FUEL CELLS
TEMPERATURE DEPENDENCE
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
YTTRIUM ADDITIONS
YTTRIUM ALLOYS
ZIRCONIUM COMPOUNDS
ZIRCONIUM OXIDES
300302 -- Thermoelectric Generators-- Performance & Testing
300502 -- Fuel Cells-- Performance & Testing
300505* -- Fuel Cells-- Electrochemistry
Mass Transfer & Thermodynamics
36 MATERIALS SCIENCE
360204 -- Ceramics
Cermets
& Refractories-- Physical Properties
ALLOYS
CHALCOGENIDES
CHARGED PARTICLES
DIRECT ENERGY CONVERTERS
ELECTROCHEMICAL CELLS
ENTROPY
FABRICATION
FUEL CELLS
IONS
OXIDES
OXYGEN COMPOUNDS
OXYGEN IONS
PHYSICAL PROPERTIES
SEEBECK EFFECT
SINTERING
SOLID ELECTROLYTE FUEL CELLS
TEMPERATURE DEPENDENCE
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
YTTRIUM ADDITIONS
YTTRIUM ALLOYS
ZIRCONIUM COMPOUNDS
ZIRCONIUM OXIDES