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Spray pyrolysis of La0.6Sr0.4Co0.2Fe0.8O3-δ thin film cathodes

Beckel, D. ; Dubach, A. ; Studart, A. ; Gauckler, L.

In: Journal of Electroceramics, 2006, vol. 16, no. 3, p. 221-228

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    Titre
    • Spray pyrolysis of La0.6Sr0.4Co0.2Fe0.8O3-δ thin film cathodes
    Auteur
    • Beckel, D.. Department Materials Nonmetallic Inorganic Materials, ETH Zürich, Wolfgang-Pauli-Str. 10, CH- 8093, Zürich, Switzerland
    • Dubach, A.. Department Materials Nonmetallic Inorganic Materials, ETH Zürich, Wolfgang-Pauli-Str. 10, CH- 8093, Zürich, Switzerland
    • Studart, A.. Department Materials Nonmetallic Inorganic Materials, ETH Zürich, Wolfgang-Pauli-Str. 10, CH- 8093, Zürich, Switzerland
    • Gauckler, L.. Department Materials Nonmetallic Inorganic Materials, ETH Zürich, Wolfgang-Pauli-Str. 10, CH- 8093, Zürich, Switzerland
    Type de document
    • Postprint
    Langue
    • Anglais
    Publié dans
    • Journal of Electroceramics, 2006, vol. 16, no. 3, p. 221-228. Kluwer Academic Publishers
    Autre version électronique
    Identifiant OAI-PMH
    • oai:doc.rero.ch:320896
    Summary
    Spray pyrolysis has been used to prepare La0.6 Sr0.4Co0.2Fe0.8O3-δ thin film cathodes for solid oxide fuel cell (SOFC) applications. The films are polycrystalline with nano-meter sized grains and less than 1 μm in thickness. Deposition parameters for film deposition have been established. The ratio of deposition temperature to solvent boiling point is found to be the most important processing parameter that determines whether a crack free homogeneous and coherent film is obtained. The morphology can be tailored by the deposition parameters. Annealing at 650∘C for four hours in air results in coherent films of the desired perovskite phase. The films are potential cathodes for thin film micro-solid oxide fuel cells