PrBaCo2O6−δ-Ce0.8Sm0.2O1.9 Composite Cathodes for Intermediate-Temperature Solid Oxide Fuel Cells: Stability and Cation Interdiffusion. - Tsvetkov, Dmitry; Tsvetkova, Nadezhda; Ivanov, Ivan; Malyshkin, Dmitry; Sereda, Vladimir; Zuev, Andrey (Energies (19961073), 2019)