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Atomic structure of a Σ3 [110]/(111) grain boundary in CeO_2

机译：CeO_2中Σ3[110] /（111）晶界的原子结构

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摘要

The atomic structure of a Σ3 [110]/(111) grain boundary in CeO_2 was studied by scanning transmission electron microscopy, electron energy loss spectroscopy, and the first-principles calculations. It was revealed that this grain boundary does not promote the formation of oxygen vacancies and keeps oxygen stoichiometry, which is different from that of Σ5 CeO_2 grain boundary studied previously [H. Hojo, T. Mizoguchi, H. Ohta, S. D. Findlay, N. Shibata, T. Yamamoto, and Y. Ikuhara, Nano Lett. 10, 4668 (2010)]. It was found that the difference in grain boundary oxygen stoichiometry is correlated with the grain boundary atomic structure.
机译：通过扫描透射电子显微镜，电子能量损失谱和第一性原理计算研究了CeO_2中Σ3[110] /（111）晶界的原子结构。结果表明，该晶界不促进氧空位的形成，并保持了氧化学计量，这与先前研究的Σ5CeO_2晶界不同[H． Hojo，T.Mizoguchi，H.Ohta，S.D.Findlay，N.Shibata，T.Yamamoto和Y.Ikuhara，Nano Lett。 10，4668（2010）]。发现晶界氧化学计量的差异与晶界原子结构相关。

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  • 来源
    《Applied Physics Letters 》 |2012年第7期| p.073109.1-073109.3| 共3页
  • 作者

    B. Feng; H. Hojo; T. Mizoguchi; H. Ohta; S. D. Findlay; Y. Sato; N. Shibata; T. Yamamoto; Y. Ikuhara;

  • 作者单位

    Institute of Engineering Innovation, School of Engineering, The University of Tokyo, Tokyo 113-8656, Japan;

    Institute of Engineering Innovation, School of Engineering, The University of Tokyo, Tokyo 113-8656, Japan;

    Institute of Industrial Science, The University of Tokyo, Tokyo 153-8505, Japan;

    Graduate School of Engineering, Nagoya University, Nagoya 464-8603, Japan,PRESTO, Japan Science and Technology Agency, Kawaguchi 332-0012, Japan;

    Institute of Engineering Innovation, School of Engineering, The University of Tokyo, Tokyo 113-8656, Japan,School of Physics, Monash University, Victoria 3800, Australia;

    Institute of Engineering Innovation, School of Engineering, The University of Tokyo, Tokyo 113-8656, Japan;

    Institute of Engineering Innovation, School of Engineering, The University of Tokyo, Tokyo 113-8656, Japan,PRESTO, Japan Science and Technology Agency, Kawaguchi 332-0012, Japan;

    Institute of Engineering Innovation, School of Engineering, The University of Tokyo, Tokyo 113-8656, Japan,Graduate School of Engineering, Nagoya University, Nagoya 464-8603, Japan,Nanostructures Research Laboratory, Japan Fine Ceramics Center, Nagoya 456-8587, Japan;

    Institute of Engineering Innovation, School of Engineering, The University of Tokyo, Tokyo 113-8656, Japan,Nanostructures Research Laboratory, Japan Fine Ceramics Center, Nagoya 456-8587, Japan,WPI Advanced Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan;

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