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

Olivier Thomann; Mikko Pihlatie; J. Andreas Schuler; Olli Himanen; Jari Kiviaho

doi:10.1149/2.022203esl

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

Olivier Thomann^*, Mikko Pihlatie, J. Andreas Schuler, Olli Himanen, Jari Kiviaho

^*Corresponding author for this work

Ecole Polytechnique Fédérale de Lausanne (EPFL)

Research output: Contribution to journal › Article › Scientific › peer-review

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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 language	English
Pages (from-to)	B35-B37
Journal	Electrochemical and Solid-State Letters
Volume	15
Issue number	3
DOIs	https://doi.org/10.1149/2.022203esl
Publication status	Published - 2012
MoE publication type	A1 Journal article-refereed

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10.1149/2.022203esl

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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. ",

author = "Olivier Thomann and Mikko Pihlatie and Schuler, {J. Andreas} and Olli Himanen and Jari Kiviaho",

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AU - Thomann, Olivier

AU - Pihlatie, Mikko

AU - Schuler, J. Andreas

AU - Himanen, Olli

AU - Kiviaho, Jari

N1 - Project code: 74724-1.1

PY - 2012

Y1 - 2012

N2 - 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.

AB - 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.

U2 - 10.1149/2.022203esl

DO - 10.1149/2.022203esl

M3 - Article

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VL - 15

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JO - Electrochemical and Solid-State Letters

JF - Electrochemical and Solid-State Letters

IS - 3

ER -

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

Abstract

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