Nickel-Containing Perovskites, PrNiFeO and PrNiCoO, as Potential Electrodes for Protonic Ceramic Electrochemical Cells.

Protonic ceramic fuel cells (PCFCs) offer a convenient means of converting chemical energy into electricity with high performance and efficiency at low- and intermediate-temperature ranges. However, in order to ensure good life-time stability of PCFCs, it is necessary to ensure rational chemical design in functional materials. Within the present work, we propose new Ni-based perovskite phases of PrNiMO (where M = Co, Fe) for potential utilization in protonic ceramic electrochemical cells.