Optimized Lanthanum Ferrite-Based Cathods for Anode-Supported SOFCs

Journal Article · Mon Jul 15 00:00:00 EDT 2002 · Electrochemical and Solid-State Letters

DOI:https://doi.org/10.1149/1.1483156· OSTI ID:887031

Simner, Steve P; Bonnett, Jeff F; Canfield, Nathan L; Meinhardt, Kerry D; Sprenkle, Vince L; Stevenson, Jeffry W

Three cathode compositions (La0.8Sr0.2FeO3-d, La0.7Sr0.3Fe0.8Ni0.2O3-d and LaNi0.6Fe0.4O3-d) have been tested as SOFC cathodes at operating temperatures from 650 degrees C to 750 degrees C. Sintering temperatures were established for each cathode composition to provide optimized cell performance. La0.8Sr0.2FeO3-d exhibited the highest power density (> 900 mW/cm2 at 750 degrees C and 0.7 V), and indicated excellent performance stability over a 300 hour period.

• Research Organization: Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC05-76RL01830
• OSTI ID: 887031
• Report Number(s): PNNL-SA-50820; AA2530000; TRN: US200617%%443
• Journal Information: Electrochemical and Solid-State Letters, Vol. 5, Issue 7
• Country of Publication: United States
• Language: English

Related Subjects

30 DIRECT ENERGY CONVERSION
CATHODES
LANTHANUM
PERFORMANCE
POWER DENSITY
SINTERING
SOLID OXIDE FUEL CELLS
STABILITY
FERRITE