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

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

研究成果: Article査読

154 被引用数 (Scopus)

抄録

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)Σ5 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.

本文言語English
ページ(範囲)4668-4672
ページ数5
ジャーナルNano Letters
10
11
DOI
出版ステータスPublished - 2010 11月 10
外部発表はい

ASJC Scopus subject areas

  • バイオエンジニアリング
  • 化学 (全般)
  • 材料科学(全般)
  • 凝縮系物理学
  • 機械工学

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