This study explores the incorporation of ceria (CeO2) into Ni/YSZ cermet anodes for solid oxide fuel cell performance with both syngas and n-butane/steam feeds to suppress carbon deposits and expand operability of Ni-based anodes with carbonaceous fuel feeds. CeO2 was co-fired with Ni/YSZ cermets to form a porous anode support layer (1 mm thick), which was tested in SOFC button cells with dense YSZ electrolytes (10–20 μm thick) and porous LSM/YSZ cathodes (∼50 μm thick). The co-fired Ni/CeO2/YSZ anode-supported cells were tested from 700 to 800 °C on various fuels including syngas and n-butane with H2O added at a 1.5-to-1 and a 1-to-1 steam-to-carbon (S/C) ratio. Electrochemical characterization revealed that CeO2 addition provided stable performance with high power densities at 800 °C — up to 0.6 W/cm2 on syngas and 0.35 W/cm2 on direct butane feeds — without significant carbon deposition as observed for Ni/YSZ anodes without CeO2. Testing with syngas at different H2 and CO partial pressures indicated that high power densities can be maintained along an anode channel for up to 50% fuel conversion. The results indicate that CeO2 addition to Ni/YSZ may provide a viable means for stable SOFC operation on either pre-reformed or direct light-hydrocarbon fuel feeds.
- Advanced Energy Systems Division
Effects of Ceria Addition on Ni/YSZ Anodes for SOFC’s Operating With Syngas and n-Butane
- Views Icon Views
- Share Icon Share
- Search Site
Patel, S, Jawlik, PF, & Jackson, GS. "Effects of Ceria Addition on Ni/YSZ Anodes for SOFC’s Operating With Syngas and n-Butane." Proceedings of the ASME 2009 7th International Conference on Fuel Cell Science, Engineering and Technology. ASME 2009 7th International Conference on Fuel Cell Science, Engineering and Technology. Newport Beach, California, USA. June 8–10, 2009. pp. 751-760. ASME. https://doi.org/10.1115/FuelCell2009-85090
Download citation file: