Complexions at the Electrolyte/Electrode Interface in Solid Oxide Cells
نویسندگان
چکیده
Rapid deactivation presently limits a wide spread use of high-temperature solid oxide cells (SOCs) as otherwise highly efficient chemical energy converters. With triggered by the ongoing conversion reactions, an atomic-scale understanding active triple-phase boundary between electrolyte, electrode, and gas phase is essential to increase cell performance. Here, multi-method approach used comprising transmission electron microscopy first-principles calculations molecular simulations untangle atomic arrangement prototypical SOC interface lanthanum strontium manganite (LSM) anode yttria-stabilized zirconia (YSZ) electrolyte in as-prepared state after sintering. An interlayer self-limited width with partial amorphization strong compositional gradient identified, thus exhibiting characteristics complexion that stabilized confinement two bulk phases. This offers new perspective understand function SOCs at scale. Moreover, it opens up hitherto unrealized design space tune efficiency.
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ژورنال
عنوان ژورنال: Advanced Materials Interfaces
سال: 2021
ISSN: ['2196-7350']
DOI: https://doi.org/10.1002/admi.202100967