Abstract
The present study is focused on ceria based mixed (ionic and electronic conductor) composite Al0.05Ni0.1Ti0.05Zn0.80-SDC (ATZN-SDC) oxide material was prepared by solid state reaction, which can be used as anode materials for solid oxide fuel cell. The effect of Ti and Al oxides were analyzed on the NiZn-SDC composite with respect to its conductivity and catalytic activity in hydrogen atmosphere. The average crystallite size of the composite was found to be 40–100 nm by XRD and SEM. The DC conductivity was determined by 4-probe technique. The electrochemical impedance spectrum (EIS) was also examined in hydrogen atmosphere within a temperature range of 350–550 °C. The maximum power density 370 mW/cm2 was achieved at 650 °C.
•Ceria based mixed (ionic and electronic) conducting composite anode oxide for SOFC.•Ti and Al effect studied on NiZn-SDC with its conductivity and catalytic activity.•Average crystallite size of the composite found to be 40–100 nm by XRD and SEM.•EIS examined in hydrogen atmosphere within a temperature range of 350–550 °C.•Maximum power density 370 mW/cm2 at 650 °C and DC conductivity by 4-probe method.