Densification and Proton Conductivity of La_1-xBa_xScO_3-δ Electrolyte Membranes.

ABSTRACT: Bain La_1-xBa_xScO_3-δ impairs sintering and leads to a decrease in its ceramic density. Two approaches have been studied for obtaining dense ceramics: using a high processing temperature and the introduction of a Co₃O₄ sintering additive. An addition of only 0.5 wt% of Co₃O₄ sintering additive, despite the positive sintering effect, causes a noticeable violation of stoichiometry, with partial decomposition of the material. This can lead to the formation of cationic vacancies, which form associates with oxygen vacancies and significantly reduce the oxygen ion and proton conductivity of the materials. There is also a partial substitution of Co for Sc in La_1-xBa_xScO_3-δ, which reduces th

SUBMITTER: Lesnichyova A 

PROVIDER: S-EPMC9698234 | biostudies-literature | 2022 Oct

REPOSITORIES: biostudies-literature