Chromium Vapor Sensor for Monitoring Solid Oxide Fuel Cell Systems Email Page
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Performer:  Auburn University Location:  Auburn, AL
Project Duration:  10/01/2016 – 03/31/2019 Award Number:  FE0028183
Technology Area:  Solid Oxide Fuel Cells Total Award Value:  $214,336
Key Technology:  Core Technology DOE Share:  $171,465
Performer Share:  $42,871

Schematic of tubular chromium sensor.
Schematic of tubular chromium sensor.

Project Description

The project will focus on identifying a sensor design and materials for use in measuring chromium vapor content under SOFC operating conditions. Auburn University will design, fabricate, and test a solid electrolyte based potentiometric chromium sensor. The sensor will use well-established solid electrolyte materials, such as yttria stabilized zirconia and beta alumina, with new auxiliary electrode materials to provide the sensitivity to chromium-containing gas species. Solid electrolyte based sensors have demonstrated excellent stability in aggressive environments, including measuring oxygen content in molten steel and in automotive exhaust gas, and are anticipated to provide the long-term stability required to monitor the conditions in SOFCs, potentially throughout their operational lifetimes. The sensor is being designed so that is can be integrated with a chromium capture system for the SOFC balance of plant to monitor state of the system.

Project Benefits

The Auburn University project sensor will provide information on the chromium vapor formed during SOFC operation. In addition to monitoring the general operation, the sensor can be used to monitor the stability and effectiveness of a chromium capture system in the balance of plant. This information will be invaluable for determining when such a system needs to be replaced or needs maintenance, thus improving the robustness and endurance of the SOFC system.

Presentations, Papers, and Publications

Contact Information

Federal Project Manager Joseph Stoffa:
Technology Manager Shailesh Vora:
Principal Investigator Jeffrey Fergus: