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research article
Cr-poisoning in (La,Sr)(Co,Fe)O-3 cathodes after 10,000 h SOFC stack testing
After 10,000 h solid oxide fuel cell (SOFC) stack operation, the Cr-poisoning situation in (La0.6Sr0.4) (Co0.2Fe0.8)O-3 (LSCF)-based cathode material is depicted in this work. Systematic Cr profiling by energy-dispersive X-ray spectroscopy (EDS), from post-operation samples taken at different locations within the air flow field, reveals Cr accumulation in electrochemically active cathode regions, although the major amount of Cr is trapped in inactive surface-proximal cathode regions; the 20 m LSCF current collector does not fully impede the Cr access to the functional cathode.
Type
research article
Web of Science ID
WOS:000305364900028
Authors
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•
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Comminges, Clement
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Steiner, Nadia Yousfi
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Publication date
2012
Publisher
Published in
Volume
211
Start page
177
End page
183
Peer reviewed
REVIEWED
Available on Infoscience
July 13, 2012
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