Details
| Original language | English |
|---|---|
| Pages (from-to) | 347-355 |
| Number of pages | 9 |
| Journal | Journal of Electron Spectroscopy and Related Phenomena |
| Volume | 185 |
| Issue number | 10 |
| Publication status | E-pub ahead of print - 23 May 2012 |
Abstract
Recent progress in the study of selforganization phenomena in catalytic reactions on multi-component surfaces is reviewed. As chemically more complex systems a Rh(1 1 1) surface with ultra-thin vanadium oxide layers (θV < 0.5 MLE) and a bimetallic Rh(1 1 1)/Ni surface, both subjected to the H2 + O2 reaction, were chosen. Applying spatially resolving methods in situ, it is shown that under reaction conditions a reversible redistribution of the components of the catalyst occurs. The redistribution processes are essentially driven by the different chemical affinities of the components to reacting species.
Keywords
- Bimetallic catalysts, Catalysis, Chemical waves, Rhodium, Selforganization, Vanadium oxide
ASJC Scopus subject areas
- Materials Science(all)
- Electronic, Optical and Magnetic Materials
- Physics and Astronomy(all)
- Radiation
- Physics and Astronomy(all)
- Atomic and Molecular Physics, and Optics
- Physics and Astronomy(all)
- Condensed Matter Physics
- Chemistry(all)
- Spectroscopy
- Chemistry(all)
- Physical and Theoretical Chemistry
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In: Journal of Electron Spectroscopy and Related Phenomena, Vol. 185, No. 10, 23.05.2012, p. 347-355.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Chemical selforganization of composite catalysts during catalytic reactions
AU - Imbihl, Ronald
PY - 2012/5/23
Y1 - 2012/5/23
N2 - Recent progress in the study of selforganization phenomena in catalytic reactions on multi-component surfaces is reviewed. As chemically more complex systems a Rh(1 1 1) surface with ultra-thin vanadium oxide layers (θV < 0.5 MLE) and a bimetallic Rh(1 1 1)/Ni surface, both subjected to the H2 + O2 reaction, were chosen. Applying spatially resolving methods in situ, it is shown that under reaction conditions a reversible redistribution of the components of the catalyst occurs. The redistribution processes are essentially driven by the different chemical affinities of the components to reacting species.
AB - Recent progress in the study of selforganization phenomena in catalytic reactions on multi-component surfaces is reviewed. As chemically more complex systems a Rh(1 1 1) surface with ultra-thin vanadium oxide layers (θV < 0.5 MLE) and a bimetallic Rh(1 1 1)/Ni surface, both subjected to the H2 + O2 reaction, were chosen. Applying spatially resolving methods in situ, it is shown that under reaction conditions a reversible redistribution of the components of the catalyst occurs. The redistribution processes are essentially driven by the different chemical affinities of the components to reacting species.
KW - Bimetallic catalysts
KW - Catalysis
KW - Chemical waves
KW - Rhodium
KW - Selforganization
KW - Vanadium oxide
UR - http://www.scopus.com/inward/record.url?scp=84870057365&partnerID=8YFLogxK
U2 - 10.1016/j.elspec.2012.05.001
DO - 10.1016/j.elspec.2012.05.001
M3 - Article
AN - SCOPUS:84870057365
VL - 185
SP - 347
EP - 355
JO - Journal of Electron Spectroscopy and Related Phenomena
JF - Journal of Electron Spectroscopy and Related Phenomena
SN - 0368-2048
IS - 10
ER -