Internal reforming over nickel/zirconia anodes in SOFCS oparating on methane : influence of anode formulation, pre-treatment and operating conditions

摘要: Abstract Internal methane reforming over nickel/zirconia cermet anodes has been studied in detail using a thin-walled extruded zirconia tubular SOFC reactor. The influence of anode formulation, pre-treatment, operating temperature and methane/steam ratio on the characteristics, resistance to carbon deposition durability have investigated under actual conditions. Post-reaction TPO used determine amount its strength interaction with anode. A 90-vol.% shows higher activity than 50-vol.% Ni at temperatures, very good durability. Pre-reducing H2 1173 K leads more active catalyst. Carbon is removed from two processes during TPO, suggesting types species. As increases both are temperature, there an increase relative population strongly bound form carbon.