Hauptseite > Publikationsdatenbank > Component Interactions After Long-Term Operation of an SOFC Stack With LSM Cathode > print

001     20848
005     20250701125846.0
024 7 _ |2 DOI
|a 10.1016/j.jpowsour.2011.10.117
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037 _ _ |a PreJuSER-20848
041 _ _ |a eng
082 _ _ |a 620
084 _ _ |2 WoS
|a Electrochemistry
084 _ _ |2 WoS
|a Energy & Fuels
100 1 _ |a Malzbender, J.
|b 0
|u FZJ
|0 P:(DE-Juel1)129755
245 _ _ |a Component Interactions After Long-Term Operation of an SOFC Stack With LSM Cathode
260 _ _ |a New York, NY [u.a.]
|b Elsevier
|c 2012
300 _ _ |a 196 - 203
336 7 _ |a Journal Article
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440 _ 0 |a Journal of Power Sources
|x 0378-7753
|0 3727
|v 201
500 _ _ |a Record converted from VDB: 12.11.2012
520 _ _ |a The reliable long-term operation of stacks with a low degradation rate is a prerequisite for the commercialization of solid oxide fuel cell (SOFC) technology. A detailed post-test analysis of stacks is of major importance in understanding degradation mechanisms. Here the results are reported of a post-test analysis of an SOFC stack with anode supported cells with Ni/YSZ anode, 8YSZ electrolyte, and a lanthanum strontium manganite (LSM) cathode operated under steady-state conditions for 19,000h. In particular, the microstructural and chemical analyses of the relevant metallic and ceramic components are reported. The interconnects were coated with a (Mn,Co,Fe)(3) O-4 spinel by atmospheric plasma spraying, which prevented Cr evaporating into the cathode compartment. The diffusion of Mn from the (La,Sr)MnO3 cathode into the 8YSZ electrolyte led to local enrichment at grain boundaries, which might have been responsible for the degradation via electronic pathways leading to partial short-circuiting across the electrolyte. However, the ultimate failure of the stack was the result of a weakening and fracture of the 8YSZ electrolyte along grain boundaries due to the local Mn enrichment. (C) 2011 Elsevier B.V. All rights reserved.
536 _ _ |a Rationelle Energieumwandlung
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536 _ _ |a SOFC - Solid Oxide Fuel Cell (SOFC-20140602)
|0 G:(DE-Juel1)SOFC-20140602
|c SOFC-20140602
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|f SOFC
588 _ _ |a Dataset connected to Web of Science
650 _ 7 |a J
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653 2 0 |2 Author
|a Solid oxide fuel cell
653 2 0 |2 Author
|a Degradation
653 2 0 |2 Author
|a Failure
653 2 0 |2 Author
|a Protective coating
653 2 0 |2 Author
|a Lanthanum strontium manganite
700 1 _ |a Batfalsky, P.
|b 1
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700 1 _ |a Vaßen, R.
|b 2
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|0 P:(DE-Juel1)129670
700 1 _ |a Shemet, V.
|b 3
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|0 P:(DE-Juel1)VDB3021
700 1 _ |a Tietz, F.
|b 4
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|0 P:(DE-Juel1)129667
773 _ _ |a 10.1016/j.jpowsour.2011.10.117
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856 7 _ |u http://dx.doi.org/10.1016/j.jpowsour.2011.10.117
856 4 _ |u https://juser.fz-juelich.de/record/20848/files/FZJ-20848_PV.pdf
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