Dynamic X-Ray Diffraction Computed Tomography Reveals Real-Time Insight into Catalyst Active Phase Evolution

Authors

  • Dr. Simon D. M. Jacques,

    Corresponding author
    1. Inorganic Chemistry and Catalysis, Debye Institute for Nanomaterials Science, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht (The Netherlands)
    2. Department of Chemistry, University College London, 20 Gordon Street, London WC1H 0AJ (UK)
    3. Department of Crystallography, Birkbeck College, Malet Street, London WC1E 7HX (UK)
    • Inorganic Chemistry and Catalysis, Debye Institute for Nanomaterials Science, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht (The Netherlands)
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  • Dr. Marco Di Michiel,

    1. ESRF, 6 Rue Jules Horowitz, 38000 Grenoble (France)
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  • Dr. Andrew M. Beale,

    Corresponding author
    1. Inorganic Chemistry and Catalysis, Debye Institute for Nanomaterials Science, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht (The Netherlands)
    • Inorganic Chemistry and Catalysis, Debye Institute for Nanomaterials Science, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht (The Netherlands)
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  • Taha Sochi,

    1. Department of Chemistry, University College London, 20 Gordon Street, London WC1H 0AJ (UK)
    2. Department of Crystallography, Birkbeck College, Malet Street, London WC1E 7HX (UK)
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  • Dr. Matthew G. O'Brien,

    1. Inorganic Chemistry and Catalysis, Debye Institute for Nanomaterials Science, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht (The Netherlands)
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  • Dr. Leticia Espinosa-Alonso,

    1. Inorganic Chemistry and Catalysis, Debye Institute for Nanomaterials Science, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht (The Netherlands)
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  • Prof. Dr. Bert M. Weckhuysen,

    1. Inorganic Chemistry and Catalysis, Debye Institute for Nanomaterials Science, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht (The Netherlands)
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  • Prof. Dr. Paul Barnes

    1. Department of Chemistry, University College London, 20 Gordon Street, London WC1H 0AJ (UK)
    2. Department of Crystallography, Birkbeck College, Malet Street, London WC1E 7HX (UK)
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  • We kindly acknowledge funding from the EPSRC (UK) and ACTS-ASPECT (The Netherlands) as well as beam time from the ESRF. We also wish to express their gratitude to Dr. M. Peel for his help with the initial experimental setup.

Abstract

original image

Chemistry by color: The first dynamic study using X-ray diffraction computed tomography investigates the evolving chemistry and structural changes during the preparation of a millimeter-sized industrial hydrogenation catalyst body (see picture; time evolves from left to right, and different colors represent different phases). The method has potential for chemical imaging of materials within bulk objects undergoing physicochemical changes.

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