Enhanced oxide-ion conductivity of solid-state electrolyte mesocrystals

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

doi:10.1039/c8nr09709g

Enhanced oxide-ion conductivity of solid-state electrolyte mesocrystals

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

Department of Applied Chemistry

Research output: Contribution to journal › Article › peer-review

3 Citations (Scopus)

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
Pages (from-to)	4523-4530
Number of pages	8
Journal	Nanoscale
Volume	11
Issue number	10
DOIs	https://doi.org/10.1039/c8nr09709g
Publication status	Published - 2019 Mar 14

ASJC Scopus subject areas

Materials Science(all)

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title = "Enhanced oxide-ion conductivity of solid-state electrolyte mesocrystals",

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. ",

author = "Keishi Tsukiyama and Mihiro Takasaki and Naoto Kitamura and Yasushi Idemoto and Yuya Oaki and Minoru Osada and Hiroaki Imai",

note = "Funding Information: This work was partially supported by Grant-in-Aid for Challenging Exploratory Research (15K14129) and Scientific Research (A) (16H02398) from Japan Society for the Promotion of Science (JSPS KAKENHI) and by the joint usage/research program of the Institute of Material and Systems for Sustainability (IMaSS), Nagoya University. Publisher Copyright: {\textcopyright} 2019 The Royal Society of Chemistry.",

year = "2019",

month = mar,

day = "14",

doi = "10.1039/c8nr09709g",

language = "English",

volume = "11",

pages = "4523--4530",

journal = "Nanoscale",

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T1 - Enhanced oxide-ion conductivity of solid-state electrolyte mesocrystals

AU - Tsukiyama, Keishi

AU - Takasaki, Mihiro

AU - Kitamura, Naoto

AU - Idemoto, Yasushi

AU - Oaki, Yuya

AU - Osada, Minoru

AU - Imai, Hiroaki

N1 - Funding Information: This work was partially supported by Grant-in-Aid for Challenging Exploratory Research (15K14129) and Scientific Research (A) (16H02398) from Japan Society for the Promotion of Science (JSPS KAKENHI) and by the joint usage/research program of the Institute of Material and Systems for Sustainability (IMaSS), Nagoya University. Publisher Copyright: © 2019 The Royal Society of Chemistry.

PY - 2019/3/14

Y1 - 2019/3/14

N2 - 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.

AB - 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.

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JO - Nanoscale

JF - Nanoscale

SN - 2040-3364

IS - 10

ER -

Enhanced oxide-ion conductivity of solid-state electrolyte mesocrystals

Abstract

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