Porous Pd films as effective ethanol oxidation electrocatalysts in alkaline medium

▶ Electrodeposition under hydrogen evolution condition leads to deposition of porous palladium. ▶ The as-prepared Pd films have a high geometric efficiency, ensuring a large number of active sites and rapid reaction rates. ▶ Porous Pd films show high electrochemical activity and stability for ethanol electro-oxidation in an alkaline medium.