ABSTRACT
Novel and stable to carbonization nanocomposite materials based upon Pr2−xNiO4+δ, Pr1−xSmxNi1−yCoyO3−δ and YDC were synthesized via Pechini route and ultrasonic dispersion, and were sintered using conventional and advanced (microwave, e-beam) techniques. Their real/nano structure and transport properties were characterized by sophisticated methods. Nanocomposites have high oxygen mobility due to cooperative mechanism of migration for Pr2−xNiO4+δ and fast channel of diffusion for nanocomposites due to Pr cations’ incorporation into YDC. Power density values of single SOFCs were up to 0.5 W/cm2 at 700 °C, being comparable with that for state-of-the-art cathodes. For oxygen separation membranes, high and stable performance was demonstrated.
