Details
| Original language | English |
|---|---|
| Pages (from-to) | 22539-22546 |
| Number of pages | 8 |
| Journal | Journal of Physical Chemistry C |
| Volume | 125 |
| Issue number | 41 |
| Early online date | 12 Oct 2021 |
| Publication status | Published - 21 Oct 2021 |
Abstract
With LEEM (low-energy electron microscopy) and micro-LEED as in situ techniques we have studied the structural transitions in the excitation of traveling interface pulses (TIPs) in bistable methanol oxidation on a bare Rh(110) and on a Rh(110) surface covered with a 0.1 monolayer of V oxide in the 10-4 mbar range. Close to equistability, a (1×1) structure coexists with O-induced reconstructions of the "missing row"type at the interface. An oxidation pulse traveling along the interface exhibits a substructure consisting of various reconstructions of the "missing row"type; on the reduced surface, the slow development of a c(2×2) structure is accompanied by a strong loss of the (0,0)-beam intensity. The addition of 0.1 monolayer of V oxide increases structural disorder but causes no qualitative changes in the structural transitions.
ASJC Scopus subject areas
- Materials Science(all)
- Electronic, Optical and Magnetic Materials
- Energy(all)
- General Energy
- Chemistry(all)
- Physical and Theoretical Chemistry
- Materials Science(all)
- Surfaces, Coatings and Films
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In: Journal of Physical Chemistry C, Vol. 125, No. 41, 21.10.2021, p. 22539-22546.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Structural Transitions Driving Interface Pulses in Methanol Oxidation on Rh(110) and VOx/Rh(110)
T2 - A LEEM Study
AU - von Boehn, Bernhard
AU - Krisponeit, Jon-Olaf
AU - Falta, Jens
AU - Imbihl, Ronald
N1 - Funding Information: The authors are indebted to the Deutsche Forschungsgemeinschaft (DFG) for financial support through projects: 409299786 and 408002857. B.v.B. would like to thank the Department of Inorganic Chemistry of the Fritz Haber Institute of the Max Planck Society for financial support.
PY - 2021/10/21
Y1 - 2021/10/21
N2 - With LEEM (low-energy electron microscopy) and micro-LEED as in situ techniques we have studied the structural transitions in the excitation of traveling interface pulses (TIPs) in bistable methanol oxidation on a bare Rh(110) and on a Rh(110) surface covered with a 0.1 monolayer of V oxide in the 10-4 mbar range. Close to equistability, a (1×1) structure coexists with O-induced reconstructions of the "missing row"type at the interface. An oxidation pulse traveling along the interface exhibits a substructure consisting of various reconstructions of the "missing row"type; on the reduced surface, the slow development of a c(2×2) structure is accompanied by a strong loss of the (0,0)-beam intensity. The addition of 0.1 monolayer of V oxide increases structural disorder but causes no qualitative changes in the structural transitions.
AB - With LEEM (low-energy electron microscopy) and micro-LEED as in situ techniques we have studied the structural transitions in the excitation of traveling interface pulses (TIPs) in bistable methanol oxidation on a bare Rh(110) and on a Rh(110) surface covered with a 0.1 monolayer of V oxide in the 10-4 mbar range. Close to equistability, a (1×1) structure coexists with O-induced reconstructions of the "missing row"type at the interface. An oxidation pulse traveling along the interface exhibits a substructure consisting of various reconstructions of the "missing row"type; on the reduced surface, the slow development of a c(2×2) structure is accompanied by a strong loss of the (0,0)-beam intensity. The addition of 0.1 monolayer of V oxide increases structural disorder but causes no qualitative changes in the structural transitions.
UR - http://www.scopus.com/inward/record.url?scp=85118214079&partnerID=8YFLogxK
U2 - 10.1021/acs.jpcc.1c06106
DO - 10.1021/acs.jpcc.1c06106
M3 - Article
AN - SCOPUS:85118214079
VL - 125
SP - 22539
EP - 22546
JO - Journal of Physical Chemistry C
JF - Journal of Physical Chemistry C
SN - 1932-7447
IS - 41
ER -