Synthesis and characterization of 10Sc1CeSZ powders prepared by a solid–liquid method for electrolyte-supported solid oxide fuel cells

10Sc1CeSZ is one of the most important electrolyte materials used for solid oxide fuel cells (SOFCs). A novel solid–liquid method (SLM) was adopted for the preparation of 10Sc1CeSZ nanopowder. High-purity, single-phase, homogeneous 10Sc1CeSZ powder was successfully prepared using this method. The resulting powders and ceramic pellets were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and electrochemical impedance spectroscopy (EIS). A cubic structure was obtained when the value of the specific surface area (SSA) of the starting material ZrO2 was greater than 60 m2 g−1. A conductivity of 0.14 S cm−1 at 800 °C was achieved for the sintered pellets. The performance of the electrolyte-supported cell (ESC) NiO+GDC/10Sc1CeSZ /10Sc1CeSZ +LSM reached 0.66 W cm−2 at 0.75 V and 850 °C.