Oxygen-vacancy ordering at surfaces of lithium manganese(III,IV) oxide spinel nanoparticles

Rong Huang, Yumi H. Ikuhara, Teruyasu Mizoguchi, Scott D. Findlay, Akihide Kuwabara, Craig A.J. Fisher, Hiroki Moriwake, Hideki Oki, Tsukasa Hirayama, Yuichi Ikuhara

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Abstract

(Figure Presented) Direct observation of light elements (Li and O) in oxygen-deficient lithium manganese spinel by spherical aberrationcorrected scanning transmission electron microscopy is reported. A previously unknown ordered structure was revealed by annular dark-field (ADF) imaging of oxygen columns, while Li ions are visualized successfully by annular bright-field (ABF) imaging (see picture).

Original languageEnglish
Pages (from-to)3053-3057
Number of pages5
JournalAngewandte Chemie - International Edition
Volume50
Issue number13
DOIs
Publication statusPublished - 2011 Mar 21
Externally publishedYes

Keywords

  • Electron microscopy
  • Lithium
  • Nanoparticles
  • Solid-state structures
  • Spinel phases

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)

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    Huang, R., Ikuhara, Y. H., Mizoguchi, T., Findlay, S. D., Kuwabara, A., Fisher, C. A. J., Moriwake, H., Oki, H., Hirayama, T., & Ikuhara, Y. (2011). Oxygen-vacancy ordering at surfaces of lithium manganese(III,IV) oxide spinel nanoparticles. Angewandte Chemie - International Edition, 50(13), 3053-3057. https://doi.org/10.1002/anie.201004638