Development of Chromium and Sulfur Getter for Solid Oxide Fuel Cell (SOFC) Systems


Illustration of a proposed  fibrous mat getter<br/>inserted between chromium-containing<br/>interconnector and LSM cathode of SOFCs (Left) and<br/>the SEM image of nano sized oxide<br/>powder/microfibers with high surface area and open surface (Right).
Illustration of a proposed fibrous mat getter
inserted between chromium-containing
interconnector and LSM cathode of SOFCs (Left) and
the SEM image of nano sized oxide
powder/microfibers with high surface area and open surface (Right).
University of Connecticut (UConn)
Website:  University of Connecticut
Award Number:  FE0027894
Project Duration:  10/01/2016 – 03/31/2019
Total Award Value:  $625,000
DOE Share:  $500,000
Performer Share:  $125,000
Technology Area:  Solid Oxide Fuel Cells
Key Technology:  Core Technology
Location:  Storrs, CT

Project Description

The University of Connecticut (UConn) will develop and demonstrate the operation of engineered getter systems for the capture of gaseous chromium and sulfur species present in the air stream entering solid oxide fuel cell (SOFC) power generation systems. The getter fabrication process will be scaled up to the desired architecture needed for prototype stack integration and electrical performance testing. Research program objectives include the following: (a) development and modification of chemical compositions and microstructure of getter coatings and supports using thermochemical calculations, process simulation, and modeling methodologies; (b) synthesis of high surface area coatings containing nanofiber and nanorod getter materials with micro channeled porous architectures as well as tailored porosity; (c) development of in-operando processes for monitoring chromium and sulfur breakthrough to predict getter health and protect the SOFC stacks; (d) scale up of the getter fabrication process; and (e) test validation of the getter at stack and system operating conditions.

Project Benefits

The UConn project will help advance the technology by demonstrating the capture of gaseous chromium and sulfur impurities present in the air stream, scale up of the getter fabrication process, and validation of the getter operation at SOFC stack and system levels. Engineering specification based on the systems operating conditions and experimental data will be developed to accelerate the adoption of the getter in experimental and prototype units currently being developed by industry. Mitigating cathode degradation will significantly increase the performance stability and long-term reliability of SOFCs. The research could potentially be applied to a number of solid state electrochemical devices such as electrolysis systems, oxygen separation units, and electrochemical reactors.

Contact Information

Federal Project Manager 
Patcharin Burke:
Technology Manager 
Shailesh Vora:
Principal Investigator 
Prabhakar Singh:

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