Oxide modified air electrode surface for high temperature electr

Details Oxide modified air electrode surface for high temperature electr Oxide modified air electrode surface for high temperature electr

1990-10-18

1992-04-21

Skapars, Anthony

Chemistry: electrical current producing apparatus, product, and

With pressure equalizing means for liquid immersion operation

429 33, 429 40, H01M 810

Patent

active

051067064

ABSTRACT:
An electrochemical cell is made having a porous cermet electrode (16) and a porous lanthanum manganite electrode (14), with solid oxide electrolyte (15) between them, where the lanthanum manganite surface next to the electrolyte contains a thin discontinuous layer of high surface area cerium oxide and/or praseodymium oxide, preferably as discrete particles (30) in contact with the air electrode and electrolyte.

REFERENCES:
patent: 4490444 (1984-12-01), Isenberg
patent: 4547437 (1985-10-01), Isenberg et al.
patent: 4562124 (1985-12-01), Ruka
patent: 4885078 (1989-12-01), Spengler et al.
patent: 4894297 (1990-01-01), Singh et al.
Bergmann et al., Extended Abstracts of Presentations at Workshop on High Temperature Solid Oxide Fuel Cells, May 5-6, Brookhaven National Laboratory, "Transport Considerations in Oxygen Electrodes of the Triphase Boundary Type for Zirconia Cells".

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