IDEAS home Printed from https://ideas.repec.org/a/nat/natcom/v9y2018i1d10.1038_s41467-018-03007-3.html
   My bibliography  Save this article

Visualizing catalyst heterogeneity by a multifrequential oscillating reaction

Author

Listed:
  • Yuri Suchorski

    (Technische Universität Wien)

  • Martin Datler

    (Technische Universität Wien)

  • Ivan Bespalov

    (Technische Universität Wien)

  • Johannes Zeininger

    (Technische Universität Wien)

  • Michael Stöger-Pollach

    (Technische Universität Wien)

  • Johannes Bernardi

    (Technische Universität Wien)

  • Henrik Grönbeck

    (Chalmers University of Technology)

  • Günther Rupprechter

    (Technische Universität Wien)

Abstract

It is well documented that different surface structures of catalytically active metals may exhibit different catalytic properties. This is typically examined by comparing the catalytic activities and/or selectivities of various well-defined smooth and stepped/kinked single crystal surfaces. Here we report the direct observation of the heterogeneity of active polycrystalline surfaces under reaction conditions, which is manifested by multifrequential oscillations during hydrogen oxidation over rhodium, imaged in situ by photoemission electron microscopy. Each specific surface structure, i.e. the crystallographically different µm-sized domains of rhodium, exhibits an individual spiral pattern and oscillation frequency, despite the global diffusional coupling of the surface reaction. This reaction behavior is attributed to the ability of stepped surfaces of high-Miller-index domains to facilitate the formation of subsurface oxygen, serving as feedback mechanism of the observed oscillations. The current experimental findings, backed by microkinetic modeling, may open an alternative approach towards addressing the structure-sensitivity of heterogeneous surfaces.

Suggested Citation

  • Yuri Suchorski & Martin Datler & Ivan Bespalov & Johannes Zeininger & Michael Stöger-Pollach & Johannes Bernardi & Henrik Grönbeck & Günther Rupprechter, 2018. "Visualizing catalyst heterogeneity by a multifrequential oscillating reaction," Nature Communications, Nature, vol. 9(1), pages 1-6, December.
  • Handle: RePEc:nat:natcom:v:9:y:2018:i:1:d:10.1038_s41467-018-03007-3
    DOI: 10.1038/s41467-018-03007-3
    as

    Download full text from publisher

    File URL: https://www.nature.com/articles/s41467-018-03007-3
    File Function: Abstract
    Download Restriction: no

    File URL: https://libkey.io/10.1038/s41467-018-03007-3?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. Maximilian Raab & Johannes Zeininger & Yuri Suchorski & Keita Tokuda & Günther Rupprechter, 2023. "Emergence of chaos in a compartmentalized catalytic reaction nanosystem," Nature Communications, Nature, vol. 14(1), pages 1-10, December.
    2. Hui Xin & Rongtan Li & Le Lin & Rentao Mu & Mingrun Li & Dan Li & Qiang Fu & Xinhe Bao, 2024. "Reverse water gas-shift reaction product driven dynamic activation of molybdenum nitride catalyst surface," Nature Communications, Nature, vol. 15(1), pages 1-8, December.
    3. P. Winkler & J. Zeininger & M. Raab & Y. Suchorski & A. Steiger-Thirsfeld & M. Stöger-Pollach & M. Amati & L. Gregoratti & H. Grönbeck & G. Rupprechter, 2021. "Coexisting multi-states in catalytic hydrogen oxidation on rhodium," Nature Communications, Nature, vol. 12(1), pages 1-8, December.
    4. Maximilian Raab & Johannes Zeininger & Yuri Suchorski & Alexander Genest & Carla Weigl & Günther Rupprechter, 2023. "Lanthanum modulated reaction pacemakers on a single catalytic nanoparticle," Nature Communications, Nature, vol. 14(1), pages 1-9, December.
    5. Tanmay Ghosh & Juan Manuel Arce-Ramos & Wen-Qing Li & Hongwei Yan & See Wee Chee & Alexander Genest & Utkur Mirsaidov, 2022. "Periodic structural changes in Pd nanoparticles during oscillatory CO oxidation reaction," Nature Communications, Nature, vol. 13(1), pages 1-10, December.

    More about this item

    Statistics

    Access and download statistics

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:nat:natcom:v:9:y:2018:i:1:d:10.1038_s41467-018-03007-3. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Sonal Shukla or Springer Nature Abstracting and Indexing (email available below). General contact details of provider: http://www.nature.com .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.