High temperature fuel cell with ceria-yttria solid electrolyte

Journal Article · Mon Aug 01 04:00:00 EDT 1988 · J. Electrochem. Soc.; (United States)

DOI:https://doi.org/10.1149/1.2096212· OSTI ID:6763655

Yahiro, H; Baba, Y; Eguchi, K; Arai, H ^[1]

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1. Dept. of Materials Science and Technology, Graduate School of Engineering Sciences, Kyushu Univ. 39, Kasugakoen, Kasuga-shi, Fukuoka 816 (JP)

The solid electrolyte of the system CeO/sub 2/-Y/sub 2/O/sub 3/ exhibited high ionic conductivity, as well as almost unity ionic transference number at 600/sup 0/-1000/sup 0/C. High current density and electrical power can be obtained from a (CeO/sub 2/)/sub 0.9/(YO/sub 1.5/)/sub 0.1/ fuel cell at 600/sup 0/-800/sup 0/C. La/sub 0.6/Sr/sub 0.4/CoO/sub 3/ was an excellent cathode as compared with Pt electrode. A thin film of stabilized zirconia coated by RF-sputtering is effective in protecting the anodic surface of ceria-yttria electrolyte from reduction with hydrogen. The open-circuit voltage of the fuel cell approached the theoretical value with this coating treatment.

• OSTI ID: 6763655
• Journal Information: J. Electrochem. Soc.; (United States), Journal Name: J. Electrochem. Soc.; (United States) Vol. 135:8; ISSN JESOA
• Country of Publication: United States
• Language: English

Related Subjects

30 DIRECT ENERGY CONVERSION
300503* -- Fuel Cells-- Materials
Components
& Auxiliaries
300505 -- Fuel Cells-- Electrochemistry
Mass Transfer & Thermodynamics
36 MATERIALS SCIENCE
360204 -- Ceramics
Cermets
& Refractories-- Physical Properties
ALKALINE EARTH METAL COMPOUNDS
CATHODES
CERIUM COMPOUNDS
CERIUM OXIDES
CHALCOGENIDES
COATINGS
COBALT COMPOUNDS
COBALT OXIDES
CURRENT DENSITY
DIRECT ENERGY CONVERTERS
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELECTROCHEMICAL CELLS
ELECTRODES
ELECTROLYTES
ELEMENTS
FILMS
FUEL CELLS
HIGH-TEMPERATURE FUEL CELLS
IONIC CONDUCTIVITY
LANTHANUM COMPOUNDS
LANTHANUM OXIDES
MATERIALS TESTING
METALS
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
PLATINUM
PLATINUM METALS
PROTECTIVE COATINGS
RARE EARTH COMPOUNDS
RF SYSTEMS
SOLID ELECTROLYTES
SPUTTERING
STRONTIUM COMPOUNDS
STRONTIUM OXIDES
TESTING
THIN FILMS
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
YTTRIUM COMPOUNDS
YTTRIUM OXIDES
ZIRCONIUM COMPOUNDS
ZIRCONIUM OXIDES