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

Research output: Contribution to journalArticle

105 Citations (Scopus)


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.

Original languageEnglish
Pages (from-to)4668-4672
Number of pages5
JournalNano Letters
Issue number11
Publication statusPublished - Nov 10 2010
Externally publishedYes


All Science Journal Classification (ASJC) codes

  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanical Engineering

Cite this

Hojo, H., Mizoguchi, T., Ohta, H., Findlay, S. D., Shibata, N., Yamamoto, T., & Ikuhara, Y. (2010). Atomic structure of a CeO2 grain boundary: The role of oxygen vacancies. Nano Letters, 10(11), 4668-4672.