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Iron-Based Perovskite Cathodes for Solid Oxide Fuel Cells.

机译：用于固体氧化物燃料电池的铁基钙钛矿阴极。

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摘要

An A and/or A' site deficient perovskite of general formula of (A.sub.1-xA'.sub.x). sub.1-yFeO.sub.3-.delta. or of general formula A.sub.1-xA'.sub.xFeO.sub.3-67, wherein A is La alone or with one or moreof the rare earth metals or a rare earth metal other than Ce alone or a combination of rare earth metals and X is in the range of from 0 to about 1; A' is Sr or Ca or mixtures thereof and Y is in the range of from about 0.01 to about 0.3; .delta. represents the amount of compensating oxygen loss. If either A or A' is zero the remaining A or A' is deficient. A fuel cell incorporating the inventive perovskite as acathode is disclosed as well as an oxygen separation membrane. The inventive perovskite is preferably single phase.

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