Hydrogen Oxidation on Stepped Rh Surfaces: µm-Scale versus Nanoscale

ABSTRACT: The catalytic H(2) oxidation reaction on stepped Rh surfaces in the 10(−6) mbar pressure range was studied in situ on individual high-Miller-index domains of a polycrystalline Rh foil by PEEM (photoemission electron microscopy) and on a Rh nanotip by FIM/FEM (field-ion/field-emission micro...

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Autores principales: Datler, M., Bespalov, I., Buhr, S., Zeininger, J., Stöger-Pollach, M., Bernardi, J., Rupprechter, G., Suchorski, Y.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer US 2016
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7175702/
https://www.ncbi.nlm.nih.gov/pubmed/32355436
http://dx.doi.org/10.1007/s10562-016-1824-4
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author Datler, M.
Bespalov, I.
Buhr, S.
Zeininger, J.
Stöger-Pollach, M.
Bernardi, J.
Rupprechter, G.
Suchorski, Y.
author_facet Datler, M.
Bespalov, I.
Buhr, S.
Zeininger, J.
Stöger-Pollach, M.
Bernardi, J.
Rupprechter, G.
Suchorski, Y.
author_sort Datler, M.
collection PubMed
description ABSTRACT: The catalytic H(2) oxidation reaction on stepped Rh surfaces in the 10(−6) mbar pressure range was studied in situ on individual high-Miller-index domains of a polycrystalline Rh foil by PEEM (photoemission electron microscopy) and on a Rh nanotip by FIM/FEM (field-ion/field-emission microscopy). The activity, particularly the tolerance to poisoning by oxygen, was found to strongly depend on the density of steps and defects, as well as on the size of the catalytically active surfaces. GRAPHICAL ABSTRACT: [Image: see text]
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spelling pubmed-71757022020-04-28 Hydrogen Oxidation on Stepped Rh Surfaces: µm-Scale versus Nanoscale Datler, M. Bespalov, I. Buhr, S. Zeininger, J. Stöger-Pollach, M. Bernardi, J. Rupprechter, G. Suchorski, Y. Catal Letters Article ABSTRACT: The catalytic H(2) oxidation reaction on stepped Rh surfaces in the 10(−6) mbar pressure range was studied in situ on individual high-Miller-index domains of a polycrystalline Rh foil by PEEM (photoemission electron microscopy) and on a Rh nanotip by FIM/FEM (field-ion/field-emission microscopy). The activity, particularly the tolerance to poisoning by oxygen, was found to strongly depend on the density of steps and defects, as well as on the size of the catalytically active surfaces. GRAPHICAL ABSTRACT: [Image: see text] Springer US 2016-08-23 2016 /pmc/articles/PMC7175702/ /pubmed/32355436 http://dx.doi.org/10.1007/s10562-016-1824-4 Text en © The Author(s) 2016 Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
spellingShingle Article
Datler, M.
Bespalov, I.
Buhr, S.
Zeininger, J.
Stöger-Pollach, M.
Bernardi, J.
Rupprechter, G.
Suchorski, Y.
Hydrogen Oxidation on Stepped Rh Surfaces: µm-Scale versus Nanoscale
title Hydrogen Oxidation on Stepped Rh Surfaces: µm-Scale versus Nanoscale
title_full Hydrogen Oxidation on Stepped Rh Surfaces: µm-Scale versus Nanoscale
title_fullStr Hydrogen Oxidation on Stepped Rh Surfaces: µm-Scale versus Nanoscale
title_full_unstemmed Hydrogen Oxidation on Stepped Rh Surfaces: µm-Scale versus Nanoscale
title_short Hydrogen Oxidation on Stepped Rh Surfaces: µm-Scale versus Nanoscale
title_sort hydrogen oxidation on stepped rh surfaces: µm-scale versus nanoscale
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7175702/
https://www.ncbi.nlm.nih.gov/pubmed/32355436
http://dx.doi.org/10.1007/s10562-016-1824-4
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AT stogerpollachm hydrogenoxidationonsteppedrhsurfacesμmscaleversusnanoscale
AT bernardij hydrogenoxidationonsteppedrhsurfacesμmscaleversusnanoscale
AT rupprechterg hydrogenoxidationonsteppedrhsurfacesμmscaleversusnanoscale
AT suchorskiy hydrogenoxidationonsteppedrhsurfacesμmscaleversusnanoscale

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