Novel cathodes for solid oxide fuel cells
Langue
en
Chapitre d'ouvrage
Ce document a été publié dans
Functional Materials for Sustainable Energy Applications, Functional Materials for Sustainable Energy Applications. 2012, vol. 35, p. 402-444
Woodhead publishing : Elsevier
Résumé en anglais
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 ...Lire la suite >
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 properties). Their performances as SOFC cathode materials are compared to those of other materials. Finally, the flexibility of these materials as oxygen electrodes in protonic ceramic fuel cells and electrolyzers is emphasized. This is discussed in terms of the materials’ structural features.< Réduire
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