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Title: Auxiliary Electrodes for Chromium Vapor Sensors

Abstract

Measurement of chromia-containing vapors in solid oxide fuel cell systems is useful for monitoring and addressing cell degradation caused by oxidation of the chomia scale formed on alloys for interconnects and balance-of-plant components. One approach to measuring chromium is to use a solid electrolyte with an auxiliary electrode that relates the partial pressure of the chromium containing species to the mobile species in the electrolyte. One example is YCrO3 which can equilibrate with the chromium containing vapor and yttrium in yttria stabilized zirconia to establish an oxygen activity. Another is Na2CrO4 which can equilibrate with the chromium-containing vapor to establish a sodium activity.

Authors:
ORCiD logo; ;
Publication Date:
Research Org.:
Auburn University
Sponsoring Org.:
USDOE Office of Fossil Energy (FE)
OSTI Identifier:
1436064
Report Number(s):
DOE-AUBURN-28183
Journal ID: ISSN 0096-4743
DOE Contract Number:  
FE0028183
Resource Type:
Conference
Journal Name:
Transactions of the Electrochemical Society
Additional Journal Information:
Journal Volume: 85; Journal Issue: 2; Conference: 233rd Meeting of the Electrochemical Society, Seattle, WA; Related Information: 10.1149/08502.0049ecst; Journal ID: ISSN 0096-4743
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; SOFC, chromium-poisoning, sensor

Citation Formats

Fergus, Jeffrey, Shahzad, Moaiz, and Britt, Tommy. Auxiliary Electrodes for Chromium Vapor Sensors. United States: N. p., 2018. Web. doi:10.1149/08502.0049ecst.
Fergus, Jeffrey, Shahzad, Moaiz, & Britt, Tommy. Auxiliary Electrodes for Chromium Vapor Sensors. United States. doi:10.1149/08502.0049ecst.
Fergus, Jeffrey, Shahzad, Moaiz, and Britt, Tommy. Tue . "Auxiliary Electrodes for Chromium Vapor Sensors". United States. doi:10.1149/08502.0049ecst. https://www.osti.gov/servlets/purl/1436064.
@article{osti_1436064,
title = {Auxiliary Electrodes for Chromium Vapor Sensors},
author = {Fergus, Jeffrey and Shahzad, Moaiz and Britt, Tommy},
abstractNote = {Measurement of chromia-containing vapors in solid oxide fuel cell systems is useful for monitoring and addressing cell degradation caused by oxidation of the chomia scale formed on alloys for interconnects and balance-of-plant components. One approach to measuring chromium is to use a solid electrolyte with an auxiliary electrode that relates the partial pressure of the chromium containing species to the mobile species in the electrolyte. One example is YCrO3 which can equilibrate with the chromium containing vapor and yttrium in yttria stabilized zirconia to establish an oxygen activity. Another is Na2CrO4 which can equilibrate with the chromium-containing vapor to establish a sodium activity.},
doi = {10.1149/08502.0049ecst},
journal = {Transactions of the Electrochemical Society},
issn = {0096-4743},
number = 2,
volume = 85,
place = {United States},
year = {2018},
month = {5}
}

Conference:
Other availability
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