Analysis of Performance Losses and Degradation Mechanism in Porous La NiTiO:YSZ Electrodes.

The electrode performance and degradation of 1:1 LaNiTiO:YSZ composites (x = 0, 0.2) has been investigated to evaluate their potential use as SOFC cathode materials by combining electrochemical impedance spectroscopy in symmetrical cell configuration under ambient air at 1173 K, XRD, electron microscopy and image processing studies. The polarisation resistance values increase notably, i.