Method for Measuring Chromium Evaporation from SOFC Balance-of-Plant Components

Cr poisoning is a well-identified performance degradation process in solid oxide fuel cells (SOFC). While stainless steel (SS) interconnects have been identified to be a significant source of Cr, the Cr contribution from balance-of-plant (BoP) components located upstream of the cathode still needs to be ascertained. A method to measure Cr concentration level from BoP components was developed in this work. The volatile Cr species were collected by air sampling through a quartz tube coated with sodium carbonate. SEM observations enabled to correlate changes in the oxide layer microstructure of BoP alloys to their Cr evaporation rate. (C) 2012 The Electrochemical Society. [DOI: 10.1149/2.022203esl] All rights reserved.


Published in:
Electrochemical And Solid State Letters, 15, B35-B37
Year:
2012
Publisher:
Electrochemical Society
ISSN:
1099-0062
Keywords:
Laboratories:




 Record created 2012-02-23, last modified 2018-03-17


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