Performance studies of copper-iron/ceria-yttria stabilized zirconia anode for electro-oxidation of butane in solid oxide fuel cells

► Cu-Fe/CeO2-YSZ anodes with different molar ratios of Cu-Fe fabricated. ► Anodes are tested with YSZ electrolyte and LSM/YSZ cathode in H2 and n-C4H10. ► Performance increases with increase in Fe loading in Cu-Fe/CeO2-YSZ anodes. ► Cell i-V curves corroborates with the impedance spectroscopy analysis. ► Carbon fibre formation found on anode after SOFC operation in butane.