Details
| Original language | English |
|---|---|
| Pages (from-to) | 182-189 |
| Number of pages | 8 |
| Journal | CHAOS |
| Volume | 12 |
| Issue number | 1 |
| Publication status | Published - 21 Feb 2002 |
Abstract
Microstructured bimetallic Pt/Rh and Pt/Ti surfaces have been employed to study the dynamics of catalytic NO reduction and the O2 + H2 reaction at low pressure (p<10-3 mbar). Photoelectron emission microscopy and scanning photoelectron microscopy were used as spatially resolved in situ methods to image the local work function changes and to identify chemical changes in the substrate and in the adsorbate layer. It is shown that diffusional coupling leads to dynamic effects which are dependent on the macroscopic size (μm range). With alkali metals on the surface, stationary patterns form whose mechanism of formation has been studied in detail.
ASJC Scopus subject areas
- Physics and Astronomy(all)
- Statistical and Nonlinear Physics
- Mathematics(all)
- Mathematical Physics
- Physics and Astronomy(all)
- General Physics and Astronomy
- Mathematics(all)
- Applied Mathematics
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In: CHAOS, Vol. 12, No. 1, 21.02.2002, p. 182-189.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Catalysis on microstructured bimetallic surfaces
AU - Imbihl, R.
PY - 2002/2/21
Y1 - 2002/2/21
N2 - Microstructured bimetallic Pt/Rh and Pt/Ti surfaces have been employed to study the dynamics of catalytic NO reduction and the O2 + H2 reaction at low pressure (p<10-3 mbar). Photoelectron emission microscopy and scanning photoelectron microscopy were used as spatially resolved in situ methods to image the local work function changes and to identify chemical changes in the substrate and in the adsorbate layer. It is shown that diffusional coupling leads to dynamic effects which are dependent on the macroscopic size (μm range). With alkali metals on the surface, stationary patterns form whose mechanism of formation has been studied in detail.
AB - Microstructured bimetallic Pt/Rh and Pt/Ti surfaces have been employed to study the dynamics of catalytic NO reduction and the O2 + H2 reaction at low pressure (p<10-3 mbar). Photoelectron emission microscopy and scanning photoelectron microscopy were used as spatially resolved in situ methods to image the local work function changes and to identify chemical changes in the substrate and in the adsorbate layer. It is shown that diffusional coupling leads to dynamic effects which are dependent on the macroscopic size (μm range). With alkali metals on the surface, stationary patterns form whose mechanism of formation has been studied in detail.
UR - http://www.scopus.com/inward/record.url?scp=0036489709&partnerID=8YFLogxK
U2 - 10.1063/1.1450564
DO - 10.1063/1.1450564
M3 - Article
AN - SCOPUS:0036489709
VL - 12
SP - 182
EP - 189
JO - CHAOS
JF - CHAOS
SN - 1054-1500
IS - 1
ER -