A highly stable Pr2NiO4+δ oxygen electrode in electrolyte supported protonic ceramic electrolysis cells (PCECs) for hydrogen production with high faradaic efficiency

This study investigates the faradaic efficiency in BaCe 0.7 Zr 0.1 Y 0.1 Yb 0.1 O 3− δ electrolyte supported protonic ceramic electrolysis cells (PCECs). Furthermore, excellent durability is demonstrated with a Pr 2 NiO 4+ δ oxygen electrode.