Spinel-based coatings for metal supported solid oxide fuel cells
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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.
Stefan , E , Neagu , D , Tullmar , P B , Persson , Å H , Sudireddy , B R , Miller , D , Chen , M & Irvine , J 2017 , ' Spinel-based coatings for metal supported solid oxide fuel cells ' Materials Research Bulletin , vol 89 , pp. 232-244 . DOI: 10.1016/j.materresbull.2017.02.003
Materials Research Bulletin
Copyright © 2017, Elsevier Ltd. This work is made available online in accordance with the publisher’s policies. This is the author created, accepted version manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at https://doi.org/10.1016/j.materresbull.2017.02.003
DescriptionThe authors thank European Union’s Seventh Framework Programme (FP7/2007-2013) for Fuel Cell and Hydrogen Joint Technology initiative under grant agreement no. [FCH JU-GA 278257] 10 for financial support.
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