document: While impedance spectroscopy is a quite common method to investigate mixed conducting thin film electrodes, [6,10–12] oxygen tracer experiments are often performed on bulk samples [13–16]. Recently, several IEDP measurements of mixed conducting cathode materials were published with the oxide films being deposited on insulating substrates [17–19]. However, to the best of the authors' knowledge no study so far reported experiments with both techniques being applied on the same films at the same temperature. This contribution reports the results of a study applying EIS and IEDP to one and the same La0.6Sr0.4CoO3−δ (LSC) thin film in order to get complementary results on the resistive contributions of the oxygen reduction kinetics on such films. As electrical measurements require an oxygen ion conductor, yttria stabilized zirconia (YSZ) was used as substrate for LSC films with two different grain sizes. Quantitative material parameters are deduced from both types of experiments and comparison of the data allowed testing the appropriateness of analysis models.
extractive_keyphrases: analysis models bulk samples comparison of the data eis electrical measurements films grain iedp impedance spectroscopy insulating substrates lsc mixed conducting cathode materials mixed conducting thin film electrodes oxygen quantitative material parameters thin film ysz yttria stabilized zirconia
abstractive_keyphrases: applying eis and iedp to one and the same la0.6sr0.4coo3−δ (lsc) thin film appropriateness of analysis models iedp measurements la0.6sr0.4coo3−δ lsc films oxide films oxygen ion conductor oxygen reduction kinetics oxygen tracer experiments resistive contributions of the oxygen reduction kinetics