Ceria Nanocoating for Sulfur Tolerant Ni-Based Anodes of Solid Oxide Fuel Cells

Conventional nickel yttria-stabilized-zirconia (Ni–YSZ) solid oxide fuel cell anodes infiltrated with ceria nanoparticles showed sustained high sulfur tolerance. Cathode-supported cells with ceria-infiltrated Ni–YSZ anode delivered power density of 220–240 mW , at , under an applied current of 0.4 A , when operating on humidified fuel containing , at , for . In contrast, the power density of a cell with traditional Ni–YSZ anode dropped to near 0 mW , in , when similarly exposed. The results indicate that ceria nanoparticle infiltration can effectively increase the sulfur tolerance of conventional Ni–YSZ anodes.