Evidence for the Active Phase of Heterogeneous Catalysts through In Situ Reaction Product Imaging and Multiscale Modeling

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Bibtex

@article{6482fa86ab06414bbbce6e47b92bcea3,
title = "Evidence for the Active Phase of Heterogeneous Catalysts through In Situ Reaction Product Imaging and Multiscale Modeling",
abstract = "We use multiscale modeling to analyze laser-induced fluorescence (LIP) measurements of the CO oxidation reaction over Pd(100) at near-ambient reaction conditions. Integrating density functional theory-based kinetic Monte Carlo simulations of the active catalyst into fluid-dynamical simulations of the mass transport inside the reactor chamber, we calculate the reaction product concentration directly above the catalyst surface. Comparing corresponding data calculated for different surface models against the measured LIP signals, we can discriminate the one that predominantly actuates the experimentally measured catalytic activity. For the probed CO oxidation reaction conditions, the experimental activity is due to pristine Pd(100) possibly coexisting with other (oxidic) domains on the surface.",
keywords = "multiscale modeling, laser-induced fluorescence, oxidation reaction over, Pd(100), catalytic activity, in-situ spectroscopy, density-functional, theory",
author = "S. Matera and Sara Blomberg and Hoffmann, {M. J.} and Johan Zetterberg and Johan Gustafson and Edvin Lundgren and K. Reuter",
year = "2015",
doi = "10.1021/acscatal.5b00858",
language = "English",
volume = "5",
pages = "4514--4518",
journal = "ACS Catalysis",
issn = "2155-5435",
publisher = "The American Chemical Society",
number = "8",

}