Boosting the Performance of La _0.8 Sr _0.2 MnO _3‐δ Electrodes by The Incorporation of Nanocomposite Active Layers

The use of active layers is a promising strategy to improve the properties air electrodes for solid oxide fuel cells (SOFCs). In this work, La0.8Sr0.2MnO3-δ combined with different ion conductors Ce0.9Gd0.1O1.95, Bi1.5Y0.5O3 and Pr6O11 form highly efficient nanocomposite in single step by spray-pyrolysis deposition. One main advantages these that nanoscale microstructure retained at relatively high sintering temperatures. As consequence, interfacial area between electrode electrolyte increases significantly, leading fast transport interface, as well more sites electrochemical reactions. An exhaustive structural, microstructural, characterization are performed evaluate their potential SOFCs. incorporation La0.8Sr0.2MnO3-δ-Ce0.9Gd0.1O1.95 (LSM-CGO) interlayer decreases polarization resistance LSM cathode from 1.71 0.46 Ω cm2 700 °C. Moreover, cell LSM-CGO generates peak power density 1.20 W cm–2 800 °C compared 0.79 same without layer. These results demonstrate great benefits using electrodes.