Abstract
Continuous operation of solid oxide fuel cells (SOFC) with dry methane fuel was performed with a low loading of Pd-Ni catalyst on a lanthanum chromite based porous composite anode at 1073-1173 K. Synergy of Pd and Ni catalysts was observed for the direct oxidation of methane. The maximum power densities with the Pd-Ni/composite anode were 150 mW cm -2 at 1073 K and 360 mW cm -2 at 1173 K. No physical damage was observed for the SOFC during the exposure experiment of the Pd-Ni/composite anode to methane under open circuit conditions. A suitable reaction scheme is proposed for the Pd-Ni synergy catalysts for the direct oxidation of dry methane.
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