Fig. 3: Electrochemical performance of LSM (black stars) and LSM-SDC (green bullets) nanocomposites. | Nature Communications

Fig. 3: Electrochemical performance of LSM (black stars) and LSM-SDC (green bullets) nanocomposites.

From: A high-entropy manganite in an ordered nanocomposite for long-term application in solid oxide cells

Fig. 3: Electrochemical performance of LSM (black stars) and LSM-SDC (green bullets) nanocomposites.The alternative text for this image may have been generated using AI.

a Representative initial EIS Nyquist plots measured at 750 °C (air atmosphere) in an out-of-plane configuration and using a porous Ag layer as a low impedance counter-electrode for LSM and LSM-SDC. The inset shows the LSM-SDC impedance arc on a smaller scale. b Surface exchange coefficient kq as a function of inverse temperature, as compared to stoichiometric LSM (from our labs and from Ref. 46), state-of-the-art LSM-YSZ dense composites (from Ref. 45) and to state-of-the-art La0.8Sr0.2CoO3 (our lab). The red star represents the value resulting from the FEM simulation of the APT 18O fraction profile. c pO2 dependence for kq. The slopes for LSM and LSM-SDC are indicated. d ASR vs time for LSM and LSM-SDC, measured during ageing treatment. The lines are intended as a guide to the eye.

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