Direct ethanol solid oxide fuel cell operating in gradual internal reforming

► A solid oxide fuel cell was operated under anhydrous ethanol for more than 100 h. ► The same power output was observed for both fuels, hydrogen and ethanol. ► A ceria-based layer provided the catalytic activity for ethanol decomposition. ► Anhydrous ethanol was decomposed by the gradual internal reforming. ► Such a concept opens up the way for multi-fuel SOFCs.