Field-assisted oxidation of rhodium

Jean-Sabin Mc Ewen; P. Gaspard; Florian Mittendorfer; Thierry Visart de Bocarme; Norbert Kruse

doi:10.1016/j.cplett.2007.12.031

Field-assisted oxidation of rhodium

Jean-Sabin Mc Ewen (Korresp. Autor*in), P. Gaspard, Florian Mittendorfer, Thierry Visart de Bocarme, Norbert Kruse

Computergestützte Materialphysik

Veröffentlichungen: Beitrag in Fachzeitschrift › Artikel › Peer Reviewed

Abstract

The oxidation of nanosized rhodium facets is investigated in the presence of a high external electric field with field ion microscopy experiments (FIM). Corresponding density functional theory (DFT) calculations were done on Rh(0 0 1), Rh(0 1 1) and Rh(1 1 1). A cross-like granular structure is obtained with FIM when the electric field is increased from 11 to 12.3 V/nm, which strongly indicates that the field promotes the oxidation of the tip. The DFT calculations confirm this scenario with a corresponding reduction of the activation barrier for oxygen incorporation into the surface of an oxide layer. © 2007 Elsevier B.V. All rights reserved

Originalsprache	Englisch
Seiten (von - bis)	133-138
Seitenumfang	6
Fachzeitschrift	Chemical Physics Letters
Jahrgang	452
Ausgabenummer	1-3
DOIs	https://doi.org/10.1016/j.cplett.2007.12.031
Publikationsstatus	Veröffentlicht - 2008

ÖFOS 2012

1030 Physik, Astronomie

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10.1016/j.cplett.2007.12.031

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title = "Field-assisted oxidation of rhodium",

abstract = "The oxidation of nanosized rhodium facets is investigated in the presence of a high external electric field with field ion microscopy experiments (FIM). Corresponding density functional theory (DFT) calculations were done on Rh(0 0 1), Rh(0 1 1) and Rh(1 1 1). A cross-like granular structure is obtained with FIM when the electric field is increased from 11 to 12.3 V/nm, which strongly indicates that the field promotes the oxidation of the tip. The DFT calculations confirm this scenario with a corresponding reduction of the activation barrier for oxygen incorporation into the surface of an oxide layer. {\textcopyright} 2007 Elsevier B.V. All rights reserved",

author = "{Mc Ewen}, Jean-Sabin and P. Gaspard and Florian Mittendorfer and {Visart de Bocarme}, Thierry and Norbert Kruse",

note = "DOI: 10.1016/j.cplett.2007.12.031",

year = "2008",

doi = "10.1016/j.cplett.2007.12.031",

language = "English",

volume = "452",

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journal = "Chemical Physics Letters",

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TY - JOUR

T1 - Field-assisted oxidation of rhodium

AU - Mc Ewen, Jean-Sabin

AU - Gaspard, P.

AU - Mittendorfer, Florian

AU - Visart de Bocarme, Thierry

AU - Kruse, Norbert

N1 - DOI: 10.1016/j.cplett.2007.12.031

PY - 2008

Y1 - 2008

N2 - The oxidation of nanosized rhodium facets is investigated in the presence of a high external electric field with field ion microscopy experiments (FIM). Corresponding density functional theory (DFT) calculations were done on Rh(0 0 1), Rh(0 1 1) and Rh(1 1 1). A cross-like granular structure is obtained with FIM when the electric field is increased from 11 to 12.3 V/nm, which strongly indicates that the field promotes the oxidation of the tip. The DFT calculations confirm this scenario with a corresponding reduction of the activation barrier for oxygen incorporation into the surface of an oxide layer. © 2007 Elsevier B.V. All rights reserved

AB - The oxidation of nanosized rhodium facets is investigated in the presence of a high external electric field with field ion microscopy experiments (FIM). Corresponding density functional theory (DFT) calculations were done on Rh(0 0 1), Rh(0 1 1) and Rh(1 1 1). A cross-like granular structure is obtained with FIM when the electric field is increased from 11 to 12.3 V/nm, which strongly indicates that the field promotes the oxidation of the tip. The DFT calculations confirm this scenario with a corresponding reduction of the activation barrier for oxygen incorporation into the surface of an oxide layer. © 2007 Elsevier B.V. All rights reserved

U2 - 10.1016/j.cplett.2007.12.031

DO - 10.1016/j.cplett.2007.12.031

M3 - Article

SN - 0009-2614

VL - 452

SP - 133

EP - 138

JO - Chemical Physics Letters

JF - Chemical Physics Letters

IS - 1-3

ER -

Field-assisted oxidation of rhodium

Abstract

ÖFOS 2012

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