Current status of the fundamental studies on SOFC at Osaka Gas

Conference · Sun Dec 31 04:00:00 EST 1995

OSTI ID:242471

Sasaki, Hirokazu; Suzuki, Minoru; Sogi, Tadayuki; Kajimura, Atsuko; Yagasaki, Eriko ^[1]

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1. Osaka Gas Co. Ltd., Kyoto (Japan). Fundamental Research Labs.

The electrochemical properties of La(M)MnO{sub x}(M = Sr,Ca)/YSZ fabricated by CVD-EVD method were studied. It is indicated by the experimental results using O{sub 2}/N{sub 2} and O{sub 2}/He as the cathode gas that the gas diffusion process at micro pores around the La(M)MnO{sub x}/YSZ interface mainly determines the rate of cathode reaction. The cathode had an extremely large phase boundary and the polarization was about 1mV at a current density of 1.5A/cm{sup 2} in the oxygen at 1,273K. It showed almost the same value at 1,073K. The film growth of Ru/YSZ anode fabricated with the EVD process was examined. The structures of Ru/YSZ cermet were controlled by the thickness of YSZ electrolyte film and the reaction temperature.

• OSTI ID: 242471
• Report Number(s): CONF-950683--; ISBN 1-56677-095-5
• Country of Publication: United States
• Language: English

Related Subjects

30 DIRECT ENERGY CONVERSION
36 MATERIALS SCIENCE
ANODES
CALCIUM OXIDES
CATHODES
CERAMICS
CERMETS
CHEMICAL VAPOR DEPOSITION
ELECTRIC CONDUCTIVITY
ELECTROCHEMICAL COATING
FABRICATION
LANTHANUM OXIDES
MANGANESE OXIDES
MATERIALS TESTING
MICROSTRUCTURE
RUTHENIUM
SOLID ELECTROLYTE FUEL CELLS
STRONTIUM OXIDES
YTTRIUM OXIDES
ZIRCONIUM OXIDES