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Emergence of chaos in a compartmentalized catalytic reaction nanosystem

Author

Listed:
  • Maximilian Raab

    (TU Wien)

  • Johannes Zeininger

    (TU Wien)

  • Yuri Suchorski

    (TU Wien)

  • Keita Tokuda

    (Department of Computer Science, University of Tsukuba)

  • Günther Rupprechter

    (TU Wien)

Abstract

In compartmentalized systems, chemical reactions may proceed in differing ways even in adjacent compartments. In compartmentalized nanosystems, the reaction behaviour may deviate from that observed on the macro- or mesoscale. In situ studies of processes in such nanosystems meet severe experimental challenges, often leaving the field to theoretical simulations. Here, a rhodium nanocrystal surface consisting of different nm-sized nanofacets is used as a model of a compartmentalized reaction nanosystem. Using field emission microscopy, different reaction modes are observed, including a transition to spatio-temporal chaos. The transitions between different modes are caused by variations of the hydrogen pressure modifying the strength of diffusive coupling between individual nanofacets. Microkinetic simulations, performed for a network of 52 coupled oscillators, reveal the origins of the different reaction modes. Since diffusive coupling is characteristic for many living and non-living compartmentalized systems, the current findings may be relevant for a wide class of reaction systems.

Suggested Citation

  • 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.
    • Handle: RePEc:nat:natcom:v:14:y:2023:i:1:d:10.1038_s41467-023-36434-y
    DOI: 10.1038/s41467-023-36434-y
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    References listed on IDEAS

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    1. 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.
    2. 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.
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    Cited by:

    1. 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.

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