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Complex structural dynamics of nanocatalysts revealed in Operando conditions by correlated imaging and spectroscopy probes

Author

Listed:
  • Y. Li

    (Yeshiva University)

  • D. Zakharov

    (Center for Functional Nanomaterials, Brookhaven National Laboratory)

  • S. Zhao

    (Center for Functional Nanomaterials, Brookhaven National Laboratory
    University of Illinois at Urbana-Champaign)

  • R. Tappero

    (Brookhaven National Laboratory)

  • U. Jung

    (University of Illinois at Urbana-Champaign)

  • A. Elsen

    (University of Illinois at Urbana-Champaign)

  • Ph. Baumann

    (Yeshiva University)

  • R.G. Nuzzo

    (University of Illinois at Urbana-Champaign
    School of Chemical Science and Engineering, KTH Royal Institute of Technology)

  • E.A. Stach

    (Center for Functional Nanomaterials, Brookhaven National Laboratory)

  • A.I. Frenkel

    (Yeshiva University)

Abstract

Understanding how heterogeneous catalysts change size, shape and structure during chemical reactions is limited by the paucity of methods for studying catalytic ensembles in working state, that is, in operando conditions. Here by a correlated use of synchrotron X-ray absorption spectroscopy and scanning transmission electron microscopy in operando conditions, we quantitatively describe the complex structural dynamics of supported Pt catalysts exhibited during an exemplary catalytic reaction—ethylene hydrogenation. This work exploits a microfabricated catalytic reactor compatible with both probes. The results demonstrate dynamic transformations of the ensemble of Pt clusters that spans a broad size range throughout changing reaction conditions. This method is generalizable to quantitative operando studies of complex systems using a wide variety of X-ray and electron-based experimental probes.

Suggested Citation

  • Y. Li & D. Zakharov & S. Zhao & R. Tappero & U. Jung & A. Elsen & Ph. Baumann & R.G. Nuzzo & E.A. Stach & A.I. Frenkel, 2015. "Complex structural dynamics of nanocatalysts revealed in Operando conditions by correlated imaging and spectroscopy probes," Nature Communications, Nature, vol. 6(1), pages 1-6, November.
    • Handle: RePEc:nat:natcom:v:6:y:2015:i:1:d:10.1038_ncomms8583
    DOI: 10.1038/ncomms8583
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    Cited by:

    1. Sabrina D. Eder & Adam Fahy & Matthew G. Barr & J. R. Manson & Bodil Holst & Paul C. Dastoor, 2023. "Sub-resolution contrast in neutral helium microscopy through facet scattering for quantitative imaging of nanoscale topographies on macroscopic surfaces," Nature Communications, Nature, vol. 14(1), pages 1-10, December.

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