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handle: 10261/28166
La presente invención relaciona a una capa porosa catalítica para la activación del oxígeno que puede ser utilizada en las pilas de combustible sólidas del óxido (SOFCs) y en las membranas cerámicas densas para la separación del oxígeno en la alta temperatura. La capa porosa dicha es principalmente formada por un material conductor mezclado del electrón y del ion oxígeno que posee una estructura seleccionada entre de las estructuras del simple perovskite o el tipo doble o las estructuras del perovskite relacionado al perovskite, es decir: estructuras del tipo de Ruddlesden-Popper, de Dion-Jacobson y de Aurivillius. La composición de tal fase cristalina tiene la fórmula general de la continuación: [(''' 1-a-b-c del cA del '' de BaaA'bA) 1-xBx] N [Fe1-y-zCyDz] M OW.
The present invention relates to a catalytic porous layer for oxygen activation which may be utilised in solid oxide fuel cells (SOFCs) and in dense ceramic membranes for oxygen separation at high temperature. Said porous layer is principally formed by a mixed electron and oxygen ion conductive material possessing a structure selected from among structures of the simple perovskite or double perovskite type or structures related to perovskite, that is to say: structures of the Ruddlesden-Popper, Dion-Jacobson and Aurivillius type. The composition of such crystalline phase has the following general formula: [(BaaA'bA''cA'''1-a-b-c)1-xBx]N [Fe1-y-zCyDz]M OW.
A1 Solicitud de patentes con informe sobre el estado de la técnica
Consejo Superior de Investigaciones Científicas (España)
Peer reviewed
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