Enhanced oxide-ion conductivity of solid-state electrolyte mesocrystals

Keishi Tsukiyama, Mihiro Takasaki, Naoto Kitamura, Yasushi Idemoto, Yuya Oaki, Minoru Osada, Hiroaki Imai

Research output: Contribution to journalArticle

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 languageEnglish
Pages (from-to)4523-4530
Number of pages8
JournalNanoscale
Volume11
Issue number10
DOIs
Publication statusPublished - 2019 Mar 14

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Oxides
Electrolytes
Ions
Rare earths
Specific surface area
Calcination
Self assembly
Evaporation
Electric properties
Substrates
Temperature

ASJC Scopus subject areas

  • Materials Science(all)

Cite this

Tsukiyama, K., Takasaki, M., Kitamura, N., Idemoto, Y., Oaki, Y., Osada, M., & Imai, H. (2019). Enhanced oxide-ion conductivity of solid-state electrolyte mesocrystals. Nanoscale, 11(10), 4523-4530. https://doi.org/10.1039/c8nr09709g

Enhanced oxide-ion conductivity of solid-state electrolyte mesocrystals. / Tsukiyama, Keishi; Takasaki, Mihiro; Kitamura, Naoto; Idemoto, Yasushi; Oaki, Yuya; Osada, Minoru; Imai, Hiroaki.

In: Nanoscale, Vol. 11, No. 10, 14.03.2019, p. 4523-4530.

Research output: Contribution to journalArticle

Tsukiyama, K, Takasaki, M, Kitamura, N, Idemoto, Y, Oaki, Y, Osada, M & Imai, H 2019, 'Enhanced oxide-ion conductivity of solid-state electrolyte mesocrystals', Nanoscale, vol. 11, no. 10, pp. 4523-4530. https://doi.org/10.1039/c8nr09709g
Tsukiyama K, Takasaki M, Kitamura N, Idemoto Y, Oaki Y, Osada M et al. Enhanced oxide-ion conductivity of solid-state electrolyte mesocrystals. Nanoscale. 2019 Mar 14;11(10):4523-4530. https://doi.org/10.1039/c8nr09709g
Tsukiyama, Keishi ; Takasaki, Mihiro ; Kitamura, Naoto ; Idemoto, Yasushi ; Oaki, Yuya ; Osada, Minoru ; Imai, Hiroaki. / Enhanced oxide-ion conductivity of solid-state electrolyte mesocrystals. In: Nanoscale. 2019 ; Vol. 11, No. 10. pp. 4523-4530.
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