Method for measuring chromium evaporation from SOFC balance-of-plant components

Olivier Thomann (Corresponding Author), Mikko Pihlatie, J. Andreas Schuler, Olli Himanen, Jari Kiviaho

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Abstract

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.
Original languageEnglish
Pages (from-to)B35-B37
Number of pages3
JournalElectrochemical and Solid-State Letters
Volume15
Issue number3
DOIs
Publication statusPublished - 2012
MoE publication typeA1 Journal article-refereed

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