Journal article
Spinel-based coatings for metal supported solid oxide fuel cells
University of St Andrews1
Department of Energy Conversion and Storage, Technical University of Denmark2
Mixed Conductors, Department of Energy Conversion and Storage, Technical University of Denmark3
Ceramic Engineering & Science, Department of Energy Conversion and Storage, Technical University of Denmark4
Metal supports and metal supported half cells developed at DTU are used for the study of a solution infiltration approach to form protective coatings on porous metal scaffolds. The metal particles in the anode layer, and sometimes even in the support may undergo oxidation in realistic operating conditions leading to severe cell degradation.
Here, a controlled oxidation of the porous metal substrate and infiltration of Mn and/or Ce nitrate solutions are applied for in situ formation of protective coatings. Our approach consists of scavenging the FeCr oxides formed during the controlled oxidation into a continuous and well adhered coating.
The effectiveness of coatings is the result of composition and structure, but also of the microstructure and surface characteristics of the metal scaffolds.
Language: | English |
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Year: | 2017 |
Pages: | 232-244 |
ISSN: | 18734227 and 00255408 |
Types: | Journal article |
DOI: | 10.1016/j.materresbull.2017.02.003 |
ORCIDs: | Sudireddy, Bhaskar Reddy and Chen, Ming |