Cathode composition for solid oxide fuel cell
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United States of America Patent
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Sep 12, 2000
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N/A
app pub date -
Apr 30, 1997
filing date -
Nov 16, 1995
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Abstract
A high performance electrocatalyst is based on transition metal perovskites of praseodymium, samarium, terbium or neodymium which react with YSZ to form a product which is itself active as the cathode in a fuel cell. While PrCoO.sub.3 reacts with YSZ, the reaction product(s) do not result in severe degradation of cell performance. A fuel cell made with a cathode composed of only the reaction product of YSZ and PrCoO.sub.3 has good performance, indicating that this phase is itself not only a good conductor, but also a good catalyst for oxygen activation.
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