Investigation into the effect of Fe-site substitution on the performance of Sr2Fe1.5Mo0.5O6−δ anodes for SOFCs

The unstable temperature for Sr₂Fe_1.5−xNi_xMo_0.5O_6−δ materials in H₂ decreases with the increase of Ni content. Egressed Ni particles were detected in samples with a higher Ni content (x > 0.1). Sr₂Fe_1.4Ni_0.1Mo_0.5O_6−δ shows the highest electronic conductivity of 20.6 S cm⁻¹ at 800 °C.