Abstract
Oxide ion-conducting porous films were produced on a substrate by evaporation-induced self-assembly of rare earth-doped CeO 2 (REDC) nanocubes 4-5 nm in size and subsequent mild calcination at 400 °C. Mesocrystalline structures comprising iso-oriented REDC nanocubes were formed by ordered assembly based on strict attachment of their {100} faces. Enhanced oxide-ion conductivities in a temperature range of 250-350 °C were observed on the mesocrystalline films consisting of Sm-doped CeO 2 (SDC) nanocubes. The specific electrical properties of the mesocrystalline films are ascribed to improved surface-ion conduction due to a large specific surface area and a high crystallographic connectivity of SDC nanocubes.
Original language | English |
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Pages (from-to) | 4523-4530 |
Number of pages | 8 |
Journal | Nanoscale |
Volume | 11 |
Issue number | 10 |
DOIs | |
Publication status | Published - 2019 Mar 14 |
ASJC Scopus subject areas
- Materials Science(all)