Hydrogen oxidation on stepped Rh surfaces: µm-scale versus nanoscale

Datler, Martin; Bespalov, Ivan; Buhr, Sebastian; Zeininger, Johannes; Stöger-Pollach, Michael; Bernardi, Johannes; Rupprechter, Günther; Suchorski, Yuri

doi:10.1007/s10562-016-1824-4

Datensatz Zitierlink:

https://resolver.obvsg.at/urn:nbn:at:at-ubtuw:3-2589
http://hdl.handle.net/20.500.12708/210

Titel:

Hydrogen oxidation on stepped Rh surfaces: µm-scale versus nanoscale

Zitat:

Datler, M., Bespalov, I., Buhr, S., Zeininger, J., Stöger-Pollach, M., Bernardi, J., Rupprechter, G., & Suchorski, Y. (2016). Hydrogen oxidation on stepped Rh surfaces: µm-scale versus nanoscale. Catalysis Letters. https://doi.org/10.1007/s10562-016-1824-4

Verlags-DOI:

10.1007/s10562-016-1824-4

CatalogPlus:

AC11360822

Publikationstyp:

Artikel - Forschungsartikel

Sprache:

Englisch

Autor_innen:

Datler, Martin
Bespalov, Ivan
Buhr, Sebastian
Zeininger, Johannes
Stöger-Pollach, Michael
Bernardi, Johannes
Rupprechter, Günther
Suchorski, Yuri

Organisationseinheit:

E165 - Institut für Materialchemie

Zeitschrift:

Catalysis Letters

ISSN:

1011-372X

Datum (veröffentlicht):

Okt-2016

Umfang:

Verlag:

Springer

Peer Reviewed:

Keywords:

Hydrogen oxidation; Photoemission electron microscopy; Field emission microscopy; Rhodium

Abstract:

The catalytic H2 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.

Lizenz:

CC BY 4.0