Barium compounds 1 Cathode 1 Cathodes 1 Cerium oxide 1 EIS 1 Electrocatalytic properties 1 Electrochemical characterizations 1 Electrochemical impedance spectroscopy 1 Electrolytic reduction 1 GDC 1 Gd doped ceria 1 Ion exchange 1 Iron compounds 1 LSCF 1 La0.6sr0.4co0.2fe0.8o3 1 La0.6sr0.4co0.2fe0.8o3-δ 1 Lanthanum compounds 1 Nd 1 Neodymium compounds 1 Novel cathode Polarization 1 Polarization resistances 1 SOFC 1 Solid oxide fuel cells (SOFC) 1 Strontium compounds 1 cathode 1 infiltration 1