Interface Diffusion and Compatibility of (Ba,La)FeO_3-δ Perovskite Electrodes in Contact with Barium Zirconate and Ceria.

ABSTRACT: Ba_1-xLa_xFeO_3-δ perovskites (BLF) capable of conducting electrons, protons, and oxygen ions are promising oxygen electrodes for efficient solid oxide cells (fuel cells or electrolyzers), an integral part of prospected large-scale power-to-gas energy storage systems. We investigated the compatibility of BLF with lanthanum content between 5 and 50%, in contact with oxide-ion-conducting Ce_0.8Gd_0.2O_2-δ and proton-conducting BaZr_0.825Y_0.175O_3-δ electrolytes, annealing the electrode-electrolyte bilayers at high temperature to simulate thermal stresses of fabrication and prolonged operation. By employing both bulk X-ray diffraction and synchrotron X-ray microspectroscopy, we present a s

SUBMITTER: Chiara A 

PROVIDER: S-EPMC10623510 | biostudies-literature | 2023 Nov

REPOSITORIES: biostudies-literature