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Functional Materials for Sustainable Energy Applications by P Edwards, S Irvine, S Skinner, J Kilner

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13

Novel cathodes for solid oxide fuel cells

J.-C. Grenier, J.-M. Bassat and F. Mauvy,     ICMCB-CNRS, Université de Bordeaux, France

Abstract:

In this chapter, after a brief overview of the oxygen reduction reaction at the cathode side of a solid oxide fuel cell (SOFC), the main requirements for cathode materials are discussed as well as the conventional compounds that have been intensively studied during the last two decades. In the second part of the chapter, innovative materials (mixed ionic and electronic conducting oxides) are considered from the viewpoint of structural aspects and transport properties. Special attention is devoted to the layered compounds, Ln2NiO4 + δ, which exhibit promising properties (oxygen diffusivity, electrocatalytic ...

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