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Experimental review of the performances of protective coatings for interconnects in solid oxide fuel cells
Abstract
Ferritic stainless steel interconnects are used in solid oxide fuel cells; however, coatings are required to improve their performance. Although several types of coatings have been proposed, they have been scarcely investigated under similar conditions. This study compares the characteristics of uncoated Crofer 22 APU and eight different coatings on Crofer 22 APU for up to 3000 h at 800 ◦C. The coatings were deposited at various research laboratories around the world, and the experiments were performed at Chalmers University of Technology, Sweden. Cross-sections of the samples were analysed using scanning electron microscopy and energy-dispersive x-ray spectroscopy. The (Co,Mn)-based coated steels showed more than 50-fold lower chromium evaporation and at least 3 times thinner Cr2O3 scale thickness compared to uncoated steel. The coated steel samples showed lower area-specific resistance (ASR) values than the uncoated steel after 3000 h of exposure, irrespective of the coating thickness, composition and deposition method.
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Authors (13)
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Mareddy Jayanth Reddy
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Belma Talic
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Elisa Zanchi
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Federico Smeacetto Prof
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John S. Hardy
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Jung Choi Choi
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Łukasz Mazur
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Robert Vaßen
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Soumendra N. Basu
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Tomasz Brylewski
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Jan-Erik Svensson
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Jan Froitzheim
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Full text
- Publication version
- Accepted or Published Version
- DOI:
- Digital Object Identifier (open in new tab) 10.1016/j.jpowsour.2023.232831
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Details
- Category:
- Articles
- Type:
- artykuły w czasopismach
- Published in:
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JOURNAL OF POWER SOURCES
no. 568,
ISSN: 0378-7753 - Language:
- English
- Publication year:
- 2023
- Bibliographic description:
- Reddy M. J., Kamecki B., Talic B., Zanchi E., Smeacetto F., Hardy J. S., Choi J. C., Mazur Ł., Vaßen R., Basu S. N., Brylewski T., Svensson J., Froitzheim J.: Experimental review of the performances of protective coatings for interconnects in solid oxide fuel cells// JOURNAL OF POWER SOURCES -Vol. 568, (2023), s.232831-
- DOI:
- Digital Object Identifier (open in new tab) 10.1016/j.jpowsour.2023.232831
- Sources of funding:
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- Free publication
- Verified by:
- Gdańsk University of Technology
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