Operando Photoelectron Photoion Coincidence Spectroscopy to Detect Short-lived Intermediates in Catalysis

Authors

  • Zihao Zhang Laboratory for Synchrotron Radiation and Femtochemistry, Paul Scherrer Institute, Villigen
  • Javier Pérez-Ramírez Institute of Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, Zurich
  • Jeroen A. van Bokhoven Institute of Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, Zurich; Laboratory for Catalysis and Sustainable Chemistry, Paul Scherrer Institute, CH-5232 Villigen, https://orcid.org/0000-0002-4166-2284
  • Andras Bodi Laboratory for Synchrotron Radiation and Femtochemistry, Paul Scherrer Institute, Villigen https://orcid.org/0000-0003-2742-1051
  • Patrick Hemberger Laboratory for Synchrotron Radiation and Femtochemistry, Paul Scherrer Institute, Villigen

DOI:

https://doi.org/10.2533/chimia.2023.132

PMID:

38047816

Keywords:

Catalysis, Elusive intermediates, Photoionization, Reaction mechanism, VUV

Abstract

Understanding the reaction mechanism is critical yet challenging in heterogeneous catalysis. Reactive intermediates, e.g., radicals and ketenes, are short-lived and often evade detection. In this review, we summarize recent developments with operando photoelectron photoion coincidence (PEPICO) spectroscopy as a versatile tool capable of detecting elusive intermediates. PEPICO combines the advantages of mass spectrometry and the isomer-selectivity of threshold photoelectron spectroscopy. Recent applications of PEPICO in understanding catalyst synthesis and catalytic reaction mechanisms involving gaseous and surface-confined radical and ketene chemistry will be summarized.

Funding data

CHIMIA Vol. 77 No. 3 (2023): NCCR Catalysis

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Published

2023-03-29

Issue

Vol. 77 No. 3 (2023): NCCR Catalysis

Section

Scientific Articles

License

Copyright (c) 2023 Z. Zhang, J. Pérez-Ramírez, J. A. van Bokhoven, A. Bodi, P. Hemberger

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

How to Cite

[1]
Z. Zhang, J. Pérez-Ramírez, J. A. van Bokhoven, A. Bodi, P. Hemberger, Chimia 2023, 77, 132, DOI: 10.2533/chimia.2023.132.