CATALYTIC LAYER FOR OXYGEN ACTIVATION ON IONIC SOLID ELECTROLYTES AT HIGH TEMPERATURE
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United States of America Patent
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Issued Date -
Jul 28, 2011
app pub date -
Jun 25, 2009
filing date -
Jun 27, 2008
priority date (Note) -
Abandoned
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Abstract
The present invention relates to a catalytic porous layer for oxygen activation that can be used in solid oxide fuel cells (SOFC) and dense ceramic membranes for oxygen separation at a high temperature. This porous layer is mainly composed of an electron and oxygen ion mixed conductive material and has a structure selected from simple perovskite-type structures, double perovskite-type structures or perovskite-related structures, i.e. structures such as the Ruddlesden-Popper, Dion-Jacobson and Aurivillius type. The composition of this crystalline phase has the following general formula:
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