Multi-Scale Assessment of Cr Contamination Levels in SOFC Cathode Environment

This study aims to quantify in a holistic approach chromium (Cr) contamination in solid oxide fuel cell (SOFC) stack testing using adapted tools: i) a hot gas sampling method to analyze volatile Cr species in the air flux at the cathode inlet location; ii) a rapid quantification method for Cr as condensed matter in cathode material of post-test samples. The hot air sampling method reveals itself as a reproducible and time-resolved quantification technique for Cr trace amounts in a gas flow; this technique is seen as a promising evaluation tool for Cr contamination issues in SOFC systems. The quantification method reveals severe Cr-poisoning in a cell. The combined findings indicate that Cr contamination generated by system components located upstream the cell must be suppressed by hindering the access of Cr pollutants to the cathode compartment.

Published in:
ECS Transactions, 35, 1, 2001
Presented at:
12th International Symposium on Solid Oxide Fuel Cells (SOFC), Montreal, CANADA, May 01-06, 2011
Electrochemical Society Inc, 65 S Main St, Pennington, Nj 08534-2839 Usa

Note: The status of this file is: Involved Laboratories Only

 Record created 2011-02-18, last modified 2018-03-18

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