La0·8Sr0·2Cr0·5Fe0·5O3-d as anode material on cathode-support SOFCs for direct hydrocarbon utilisation

AbstractPerovskite oxides have some advantages compared with metal oxides when used for hydrocarbon fuel. La0·8Sr0·2Cr0·5Fe0·5O3-d (LSCF) was prepared by the sol–gel method. X-ray diffraction shows that pure perovskite phases of LSCF were obtained at 1100°C.Catalytic properties and conductivity were investigated by temperature-programmed reduction and the four-probe method. Finally, utilising tape casting and lamination, we fabricated a cathode-support SOFC with a LSCF-Zr0·89Sc0·1Ce0·01O2-x(SSZ) anode by a one-time co-sintering process at 1250°C. The performance of the functioning fuel cell and a short-term stability test were investigated both in H2 and CH4 fuels. The result show that LSCF is a possible electrode material for future applications.