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Origin of Anomalous Pt–Pt Distances in the Pt/Alumina Catalytic System

Authors

  • Karl Sohlberg Prof.,

    1. Department of Chemistry, Drexel University, 3141 Chestnut Street, Philadelphia, PA 19104, USA, Fax: (+1) 215-895-1265
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  • Sergey Rashkeev Prof.,

    1. Department of Physics and Astronomy, Vanderbilt University, Nashville, TN 37235, USA
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  • Albina Y. Borisevich Dr.,

    1. Condensed Matter Sciences Division, P.O. Box 2008, Oak Ridge National Laboratory, Oak Ridge, TN 37831-6031, USA
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  • Stephen J. Pennycook Prof.,

    1. Department of Physics and Astronomy, Vanderbilt University, Nashville, TN 37235, USA
    2. Condensed Matter Sciences Division, P.O. Box 2008, Oak Ridge National Laboratory, Oak Ridge, TN 37831-6031, USA
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  • Sokrates T. Pantelides Prof.

    1. Department of Physics and Astronomy, Vanderbilt University, Nashville, TN 37235, USA
    2. Condensed Matter Sciences Division, P.O. Box 2008, Oak Ridge National Laboratory, Oak Ridge, TN 37831-6031, USA
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Abstract

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Intriguing Pt3structures observed on the Pt/γ-alumina catalytic system by atomic-resolution Z-contrast scanning transmission electron microscopy (STEM) are investigated with first-principles calculations (see electronic densities in the Pt3 plane with and without the capping [BOND]OH group).

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