Ni/Ce0.9Zr0.1O2 catalysts for methane partial oxidation

M.G. ZIMICZ; LARRONDO S.A.; D.G. LAMAS

Lyon

Simposio; 9th Novel Gas Conversion Symposium; 2010

The aim of this work is to analyze the potential use of Ni/Ce0.9Zr0.1O2 as anode materials for SC-SOFCs operated in mixtures of CH4 and air. All catalysts have shown excellent conversion levels and high stability at 600ºC. At 700ºC, carbon deposition was observed, but after a treatment in oxidizing atmosphere the carbonaceous species can be removed recovering the activity of the catalysts. The combination of a high nickel content and high calcination temperature leads to the reduction of Ni and Ce0.9Zr0.1O2 contact areas, diminishing the capacity of carbon removal. Therefore, these solids could be used as anode materials for intermediate temperature SC-SOFCs (500-600°C).