Atomic structure of a CeO2 grain boundary: The role of oxygen vacancies

Hajime Hojo; Teruyasu Mizoguchi; Hiromichi Ohta; Scott Findlay; Naoya Shibata; Takahisa Yamamoto; Yuichi Ikuhara

doi:10.1021/nl1029336

Atomic structure of a CeO2 grain boundary: The role of oxygen vacancies

Hajime Hojo, Teruyasu Mizoguchi, Hiromichi Ohta, Scott Findlay, Naoya Shibata, Takahisa Yamamoto, Yuichi Ikuhara

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

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Abstract

Determining both cation and oxygen sublattices of grain boundaries is essential to understand the properties of oxides. Here, with scanning transmission electron microscopy, electron energy-loss spectroscopy, and first-principles calculations, both the Ce and oxygen sublattices of a (210)I 5 CeO2 grain boundary were determined. Oxygen vacancies are shown to play a crucial role in the stable grain boundary structure. This finding paves the way for a comprehensive understanding of grain boundaries through the atomic scale determination of atom and defect locations.

Original language	English
Pages (from-to)	4668 - 4672
Number of pages	5
Journal	Nano Letters
Volume	10
Issue number	11
DOIs	https://doi.org/10.1021/nl1029336
Publication status	Published - 2010
Externally published	Yes

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abstract = "Determining both cation and oxygen sublattices of grain boundaries is essential to understand the properties of oxides. Here, with scanning transmission electron microscopy, electron energy-loss spectroscopy, and first-principles calculations, both the Ce and oxygen sublattices of a (210)I 5 CeO2 grain boundary were determined. Oxygen vacancies are shown to play a crucial role in the stable grain boundary structure. This finding paves the way for a comprehensive understanding of grain boundaries through the atomic scale determination of atom and defect locations.",

author = "Hajime Hojo and Teruyasu Mizoguchi and Hiromichi Ohta and Scott Findlay and Naoya Shibata and Takahisa Yamamoto and Yuichi Ikuhara",

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AU - Hojo, Hajime

AU - Mizoguchi, Teruyasu

AU - Ohta, Hiromichi

AU - Findlay, Scott

AU - Shibata, Naoya

AU - Yamamoto, Takahisa

AU - Ikuhara, Yuichi

PY - 2010

Y1 - 2010

N2 - Determining both cation and oxygen sublattices of grain boundaries is essential to understand the properties of oxides. Here, with scanning transmission electron microscopy, electron energy-loss spectroscopy, and first-principles calculations, both the Ce and oxygen sublattices of a (210)I 5 CeO2 grain boundary were determined. Oxygen vacancies are shown to play a crucial role in the stable grain boundary structure. This finding paves the way for a comprehensive understanding of grain boundaries through the atomic scale determination of atom and defect locations.

AB - Determining both cation and oxygen sublattices of grain boundaries is essential to understand the properties of oxides. Here, with scanning transmission electron microscopy, electron energy-loss spectroscopy, and first-principles calculations, both the Ce and oxygen sublattices of a (210)I 5 CeO2 grain boundary were determined. Oxygen vacancies are shown to play a crucial role in the stable grain boundary structure. This finding paves the way for a comprehensive understanding of grain boundaries through the atomic scale determination of atom and defect locations.

UR - http://pubs.acs.org/doi/pdf/10.1021/nl1029336

U2 - 10.1021/nl1029336

DO - 10.1021/nl1029336

M3 - Article

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VL - 10

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EP - 4672

JO - Nano Letters

JF - Nano Letters

IS - 11

ER -

Atomic structure of a CeO2 grain boundary: The role of oxygen vacancies

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