Electrochemical studies of water insertion and proton – Ceramic interaction in substituted perovskite SrZr 0.9 Ln 0.1 O 2.95

Because of their high ionic conduction even at relatively low temperatures, proton conducting ceramics are one of the most promising electrolytes for fuel cell. In contrast to oxide-ion conductors, proton-conducting systems, especially in an electrolyser plant, could operate below 600 °C, critical temperature for mechanical and hot corrosion resistance of common stainless steels.