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Lamellar Titanates: A Breakthrough in the Search for New Solid Oxide Fuel Cell Anode Materials Operating on Methane

The conventional Ni/YSZ composite gives a good performance with pure H 2 as fuel. In this material, the yttria-substituted zirconia (YSZ) and nickel percolating networks provide ionic and electronic pathways, respectively, with the mixed conductivity allowing the delocalization of the triple phase boundary (TPB) active zone from the electrolyte/anode interface to the volume of the anode. Nevertheless, with natural gas, Ni catalyzes the cracking of methane: