Spinel-based coatings for metal supported solid oxide fuel cells

Elena Stefan; Dragos Neagu; Peter Blennow Tullmar; Åsa Helen Persson; Bhaskar R. Sudireddy; David Miller; Ming Chen; John Irvine

doi:10.1016/j.materresbull.2017.02.003

Spinel-based coatings for metal supported solid oxide fuel cells

Elena Stefan, Dragos Neagu, Peter Blennow Tullmar, Åsa Helen Persson, Bhaskar R. Sudireddy, David Miller, Ming Chen, John Irvine^*

^*Corresponding author for this work

Chemical And Process Engineering

Research output: Contribution to journal › Article › peer-review

21 Citations (Scopus)

53 Downloads (Pure)

Abstract

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.

Original language	English
Pages (from-to)	232-244
Number of pages	13
Journal	Materials Research Bulletin
Volume	89
Early online date	4 Feb 2017
DOIs	https://doi.org/10.1016/j.materresbull.2017.02.003
Publication status	Published - 31 May 2017

Keywords

coatings
porous metal supports
solution infiltration
spinels

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10.1016/j.materresbull.2017.02.003

Stefan-etal-MRB-2017-Spinel-based-coatings-for-metal-supported-solidAccepted author manuscript, 1.76 MBLicence: CC BY-NC-ND 4.0

https://research-repository.st-andrews.ac.uk/handle/10023/12666Licence: CC BY-NC-ND 4.0

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title = "Spinel-based coatings for metal supported solid oxide fuel cells",

abstract = "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.",

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AU - Stefan, Elena

AU - Neagu, Dragos

AU - Blennow Tullmar, Peter

AU - Persson, Åsa Helen

AU - Sudireddy, Bhaskar R.

AU - Miller, David

AU - Chen, Ming

AU - Irvine, John

PY - 2017/5/31

Y1 - 2017/5/31

N2 - 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.

AB - 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.

KW - coatings

KW - porous metal supports

KW - solution infiltration

KW - spinels

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DO - 10.1016/j.materresbull.2017.02.003

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JO - Materials Research Bulletin

JF - Materials Research Bulletin

ER -

Spinel-based coatings for metal supported solid oxide fuel cells

Abstract

Keywords

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