Nanocomposite Cathode Materials for Intermediate Temperature Solid Oxide Fuel Cells

摘要

The present paper is devoted to the optimization of composites (100-z) wt.% La_(1-y)Sr_yFe_(0.7)Ni_(0.3)O_(3-δ) - z wt.% Ce_(0.9)Gd_(0.1)O_(2-δ) (GDC) and study of the effect of Sr doping of perovskite and GDC content in the sample on structural and transport features of the composites. The results on the research of structural and microstructural features of the composites and their transport properties by using XRD, HRTEM, EDX analysis, electrical conductivity measurements, oxygen isotope heteroexchange and conductivity as well as weight relaxation techniques are presented and discussed.