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Low temperature processed MnCo2O4 and MnCo1.8Fe0.2O4 as effective protective coatings for solid oxide fuel cell interconnects at 750 °C
Abstract
In this study two materials, MnCo2O4 and MnCo1.8Fe0.2O4 are studied as potential protective coatings for Solid Oxide Fuel Cell interconnects working at 750 °C. First powder fabrication by a modified Pechini method is described followed by a description of the coating procedure. The protective action of the coating applied on Crofer 22 APU is evaluated by following the area specific resistance (ASR) of the scale/coating for 5500 h including several thermal cycles. The coating is prepared by brush painting and has a porous structure after deposition. Post mortem microstructural characterization performed on the coated samples shows good protection against chromium diffusion from the chromia scale ensured by a formation of a dense reaction layer. This study shows, that even without high temperature sintering and/or reactive sintering it is possible to fabricate protective coatings based on MnCo spinels.
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Authors (6)
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Sebastian Molin
- Technical University of Denmark Department of Energy Conversion and Storage
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Lars Mikkelsen
- Technical University of Denmark Department of Energy Conversion and Storage
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W. Zhang
- Technical University of Denmark Department of Energy Conversion and Storage
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Ming Chen
- Technical University of Denmark Department of Energy Conversion and Storage
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Peter Vang Hendriksen
- Technical University of Denmark Department of Energy Conversion and Storage
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Details
- Category:
- Articles
- Type:
- artykuł w czasopiśmie wyróżnionym w JCR
- Published in:
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JOURNAL OF POWER SOURCES
no. 336,
pages 408 - 418,
ISSN: 0378-7753 - Language:
- English
- Publication year:
- 2016
- Bibliographic description:
- Molin S., Jasiński P., Mikkelsen L., Zhang W., Chen M., Hendriksen P.: Low temperature processed MnCo2O4 and MnCo1.8Fe0.2O4 as effective protective coatings for solid oxide fuel cell interconnects at 750 °C// JOURNAL OF POWER SOURCES. -Vol. 336, (2016), s.408-418
- DOI:
- Digital Object Identifier (open in new tab) 10.1016/j.jpowsour.2016.11.011
- Verified by:
- Gdańsk University of Technology
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