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

ABSTRACT: The implementation of nano-engineered composite oxides opens up the way towards the development of a novel class of functional materials with enhanced electrochemical properties. Here we report on the realization of vertically aligned nanocomposites of lanthanum strontium manganite and doped ceria with straight applicability as functional layers in high-temperature energy conversion devices. By a detailed analysis using complementary state-of-the-art techniques, which include atom-probe tomography combined with oxygen isotopic exchange, we assess the local structural and electrochemical functionalities and we allow direct observation of local fast oxygen diffusion pathways. The resulting ordered mesostructure, which is characterized by a coherent, dense array of vertical interfaces, shows

SUBMITTER: Baiutti F 

PROVIDER: S-EPMC8113253 | biostudies-literature | 2021 May

REPOSITORIES: biostudies-literature