Details
| Originalsprache | Englisch |
|---|---|
| Seiten (von - bis) | 73-78 |
| Seitenumfang | 6 |
| Fachzeitschrift | ULTRAMICROSCOPY |
| Jahrgang | 200 |
| Frühes Online-Datum | 27 Feb. 2019 |
| Publikationsstatus | Veröffentlicht - Mai 2019 |
Abstract
A near ambient pressure low-energy electron microscope (NAP-LEEM) has recently been constructed, that allows in situ imaging of surfaces up to a pressure of 10 −1 mbar. Here we report on pattern formation in catalytic CO oxidation on a Pt(110) single crystal surface and on a polycrystalline Pt foil in the 10 −2 mbar range, operating the microscope in the mirror electron microscopy (MEM) and in the LEEM mode. Excitations localized at structural defects and spiral wave fragments have been observed.
ASJC Scopus Sachgebiete
- Werkstoffwissenschaften (insg.)
- Elektronische, optische und magnetische Materialien
- Physik und Astronomie (insg.)
- Atom- und Molekularphysik sowie Optik
- Physik und Astronomie (insg.)
- Instrumentierung
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in: ULTRAMICROSCOPY, Jahrgang 200, 05.2019, S. 73-78.
Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review
}
TY - JOUR
T1 - Catalytic CO oxidation on Pt under near ambient pressure
T2 - A NAP-LEEM study
AU - Franz, Torsten
AU - von Boehn, Bernhard
AU - Marchetto, Helder
AU - Borkenhagen, Benjamin
AU - Lilienkamp, Gerhard
AU - Daum, Winfried
AU - Imbihl, Ronald
N1 - Funding information: This work was financially supported by the German Research Foundation ( DFG , project DA 396/6-2 ). This work was financially supported by the German Research Foundation (DFG, project DA 396/6-2).
PY - 2019/5
Y1 - 2019/5
N2 - A near ambient pressure low-energy electron microscope (NAP-LEEM) has recently been constructed, that allows in situ imaging of surfaces up to a pressure of 10 −1 mbar. Here we report on pattern formation in catalytic CO oxidation on a Pt(110) single crystal surface and on a polycrystalline Pt foil in the 10 −2 mbar range, operating the microscope in the mirror electron microscopy (MEM) and in the LEEM mode. Excitations localized at structural defects and spiral wave fragments have been observed.
AB - A near ambient pressure low-energy electron microscope (NAP-LEEM) has recently been constructed, that allows in situ imaging of surfaces up to a pressure of 10 −1 mbar. Here we report on pattern formation in catalytic CO oxidation on a Pt(110) single crystal surface and on a polycrystalline Pt foil in the 10 −2 mbar range, operating the microscope in the mirror electron microscopy (MEM) and in the LEEM mode. Excitations localized at structural defects and spiral wave fragments have been observed.
KW - CO oxidation
KW - NAP-LEEM
KW - Near ambient pressure low-energy electron microscopy
KW - Platinum
UR - http://www.scopus.com/inward/record.url?scp=85062217333&partnerID=8YFLogxK
U2 - 10.1016/j.ultramic.2019.02.024
DO - 10.1016/j.ultramic.2019.02.024
M3 - Article
C2 - 30836286
AN - SCOPUS:85062217333
VL - 200
SP - 73
EP - 78
JO - ULTRAMICROSCOPY
JF - ULTRAMICROSCOPY
SN - 0304-3991
ER -