Enriching Nano-Heterointerfaces in Proton Conducting TiO₂-SrTiO₃@TiO₂ Yolk-Shell Electrolyte for Low-Temperature Solid Oxide Fuel Cells.

ABSTRACT: A challenging task in solid oxide fuel cells (SOFCs) is seeking for an alternative electrolyte, enabling high ionic conduction at relatively low operating temperatures, i.e., 300-600 °C. Proton-conducting candidates, in particular, hold a significant promise due to their low transport activation energy to deliver protons. Here, a unique hierarchical TiO₂-SrTiO₃@TiO₂ structure is developed inside an intercalated TiO₂-SrTiO₃ core as "yolk" decorating densely packed flake TiO₂ as shell, creating plentiful nano-heterointerfaces with a continuous TiO₂ and SrTiO₃ "in-house" interfaces, as well the interfaces between TiO₂-SrTiO₃ yolk and TiO₂ shell. It exhibits a reduced activa

SUBMITTER: Du M 

PROVIDER: S-EPMC11423155 | biostudies-literature | 2024 Sep

REPOSITORIES: biostudies-literature