Pattern Formation in Catalytic H(2) Oxidation on Rh: Zooming in by Correlative Microscopy

[Image: see text] Spatio-temporal nonuniformities in H(2) oxidation on individual Rh(h k l) domains of a polycrystalline Rh foil were studied in the 10(–6) mbar pressure range by photoemission electron microscopy (PEEM), X-ray photoemission electron microscopy (XPEEM), and low-energy electron micros...

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Autores principales: Zeininger, Johannes, Winkler, Philipp, Raab, Maximilian, Suchorski, Yuri, Prieto, Mauricio J., Tănase, Liviu C., de Souza Caldas, Lucas, Tiwari, Aarti, Schmidt, Thomas, Stöger-Pollach, Michael, Steiger-Thirsfeld, Andreas, Roldan Cuenya, Beatriz, Rupprechter, Günther
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Chemical Society 2022
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9552168/
https://www.ncbi.nlm.nih.gov/pubmed/36249872
http://dx.doi.org/10.1021/acscatal.2c03692
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author Zeininger, Johannes
Winkler, Philipp
Raab, Maximilian
Suchorski, Yuri
Prieto, Mauricio J.
Tănase, Liviu C.
de Souza Caldas, Lucas
Tiwari, Aarti
Schmidt, Thomas
Stöger-Pollach, Michael
Steiger-Thirsfeld, Andreas
Roldan Cuenya, Beatriz
Rupprechter, Günther
author_facet Zeininger, Johannes
Winkler, Philipp
Raab, Maximilian
Suchorski, Yuri
Prieto, Mauricio J.
Tănase, Liviu C.
de Souza Caldas, Lucas
Tiwari, Aarti
Schmidt, Thomas
Stöger-Pollach, Michael
Steiger-Thirsfeld, Andreas
Roldan Cuenya, Beatriz
Rupprechter, Günther
author_sort Zeininger, Johannes
collection PubMed
description [Image: see text] Spatio-temporal nonuniformities in H(2) oxidation on individual Rh(h k l) domains of a polycrystalline Rh foil were studied in the 10(–6) mbar pressure range by photoemission electron microscopy (PEEM), X-ray photoemission electron microscopy (XPEEM), and low-energy electron microscopy (LEEM). The latter two were used for in situ correlative microscopy to zoom in with significantly higher lateral resolution, allowing detection of an unusual island-mediated oxygen front propagation during kinetic transitions. The origin of the island-mediated front propagation was rationalized by model calculations based on a hybrid approach of microkinetic modeling and Monte Carlo simulations.
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spelling pubmed-95521682022-10-12 Pattern Formation in Catalytic H(2) Oxidation on Rh: Zooming in by Correlative Microscopy Zeininger, Johannes Winkler, Philipp Raab, Maximilian Suchorski, Yuri Prieto, Mauricio J. Tănase, Liviu C. de Souza Caldas, Lucas Tiwari, Aarti Schmidt, Thomas Stöger-Pollach, Michael Steiger-Thirsfeld, Andreas Roldan Cuenya, Beatriz Rupprechter, Günther ACS Catal [Image: see text] Spatio-temporal nonuniformities in H(2) oxidation on individual Rh(h k l) domains of a polycrystalline Rh foil were studied in the 10(–6) mbar pressure range by photoemission electron microscopy (PEEM), X-ray photoemission electron microscopy (XPEEM), and low-energy electron microscopy (LEEM). The latter two were used for in situ correlative microscopy to zoom in with significantly higher lateral resolution, allowing detection of an unusual island-mediated oxygen front propagation during kinetic transitions. The origin of the island-mediated front propagation was rationalized by model calculations based on a hybrid approach of microkinetic modeling and Monte Carlo simulations. American Chemical Society 2022-09-19 2022-10-07 /pmc/articles/PMC9552168/ /pubmed/36249872 http://dx.doi.org/10.1021/acscatal.2c03692 Text en © 2022 The Authors. Published by American Chemical Society https://creativecommons.org/licenses/by/4.0/Permits the broadest form of re-use including for commercial purposes, provided that author attribution and integrity are maintained (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Zeininger, Johannes
Winkler, Philipp
Raab, Maximilian
Suchorski, Yuri
Prieto, Mauricio J.
Tănase, Liviu C.
de Souza Caldas, Lucas
Tiwari, Aarti
Schmidt, Thomas
Stöger-Pollach, Michael
Steiger-Thirsfeld, Andreas
Roldan Cuenya, Beatriz
Rupprechter, Günther
Pattern Formation in Catalytic H(2) Oxidation on Rh: Zooming in by Correlative Microscopy
title Pattern Formation in Catalytic H(2) Oxidation on Rh: Zooming in by Correlative Microscopy
title_full Pattern Formation in Catalytic H(2) Oxidation on Rh: Zooming in by Correlative Microscopy
title_fullStr Pattern Formation in Catalytic H(2) Oxidation on Rh: Zooming in by Correlative Microscopy
title_full_unstemmed Pattern Formation in Catalytic H(2) Oxidation on Rh: Zooming in by Correlative Microscopy
title_short Pattern Formation in Catalytic H(2) Oxidation on Rh: Zooming in by Correlative Microscopy
title_sort pattern formation in catalytic h(2) oxidation on rh: zooming in by correlative microscopy
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9552168/
https://www.ncbi.nlm.nih.gov/pubmed/36249872
http://dx.doi.org/10.1021/acscatal.2c03692
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