Imaging the Active Surfaces of Cerium Dioxide Nanoparticles

Authors

  • Dr. Sarah J. Haigh,

    1. Department of Materials, University of Oxford, Parks Road, Oxford, OX1 3PH (UK), Fax: (+44) 1865-283333
    2. Materials Science Centre, University of Manchester, Grosvenor Street, Manchester, M1 7HS (UK)
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  • Dr. Neil P. Young,

    1. Department of Materials, University of Oxford, Parks Road, Oxford, OX1 3PH (UK), Fax: (+44) 1865-283333
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  • Dr. Hidetaka Sawada,

    1. JEOL Ltd. 1-2 Mushashino 3-Chome, Akishima, Tokyo 196 (Japan)
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  • Prof. Dr. Kunio Takayanagi,

    1. Department of Physics, Tokyo Institute of Technology, 2-12-1-H-51 Oh-okayama, Meguro-ku, Tokyo 152-8551 (Japan), CREST Japan Science and Technology Corporation, Kawaguchi, Saitama 332-0012 (Japan)
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  • Prof. Dr. Angus I. Kirkland

    Corresponding author
    1. Department of Materials, University of Oxford, Parks Road, Oxford, OX1 3PH (UK), Fax: (+44) 1865-283333
    • Department of Materials, University of Oxford, Parks Road, Oxford, OX1 3PH (UK), Fax: (+44) 1865-283333
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Abstract

original image

Watching the changes: Aberration-corrected transmission electron microscopy is used to image CeO2 nanoparticles during an electron-beam-induced structure transformation. Analysis of the phase of the computationally restored exit wavefunction (see Figure, a) allows the nature of the different surfaces (b) to be characterized for the first time and provides direct experimental verification of previously reported theoretical surface structure calculations.

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