Synthesis and Characterization of BaCe0.8Y0.2O2.9 Nanopowder by Sol-Gel Auto-Ignited Method
A sol-gel auto-ignited synthesis, which is a hybrid of sol-gel and auto-ignited techniques, was applied to preparation of homogeneous and stoichiometric BaCe0.8Y0.2O2.9 nanocrystalline ceramic powder as solid electrolyte used in solid oxide fuel cells at 1000°C. Optimal pH value for the mixed citrate-nitrate solutions was determined by calculation. The DTA-TG and XRD were used to investigate the thermal decomposition of the gel precursor. The structure and phase present of the nanocrystalline BaCe0.8Y0.2O2.9 powders were characterized by XRD, BET and SEM techniques.
Wei Pan, Jianghong Gong, Chang-Chun Ge and Jing-Feng Li
J. T. Ma et al., "Synthesis and Characterization of BaCe0.8Y0.2O2.9 Nanopowder by Sol-Gel Auto-Ignited Method", Key Engineering Materials, Vols. 280-283, pp. 661-664, 2005