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Shedding Light on Surface Reactions

PEEM, EMSI and RAM probed chemistry on solid surfaces

Rotermund, H. H.

Abstract Different submonolayer adsorbate coverages on surfaces during reactions can be visualised by several non-destructive microscopies. By using photons as the incident particles the emitted photoelectrons may be imaged and the picture will reveal differences of the work function (PEEM). If the reflected light is exploited, either an ellipso microscope for surface imaging (EMSI) or a reflection anisotropy microscope (RAM) can be utilised. Pattern formation during the catalytic CO-oxidation is observed by these methods over a wide pressure range annihilating the “pressure gap” between ultra high vacuum (UHV) and ordinary atmospheric conditions.

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Shedding Light on Surface Reactions

PEEM, EMSI and RAM probed chemistry on solid surfaces

Rotermund, H. H.

Abstract Different submonolayer adsorbate coverages on surfaces during reactions can be visualised by several non-destructive microscopies. By using photons as the incident particles the emitted photoelectrons may be imaged and the picture will reveal differences of the work function (PEEM). If the reflected light is exploited, either an ellipso microscope for surface imaging (EMSI) or a reflection anisotropy microscope (RAM) can be utilised. Pattern formation during the catalytic CO-oxidation is observed by these methods over a wide pressure range annihilating the “pressure gap” between ultra high vacuum (UHV) and ordinary atmospheric conditions.

Shedding Light on Surface Reactions

PEEM, EMSI and RAM probed chemistry on solid surfaces

Rotermund, H. H.

Abstract Different submonolayer adsorbate coverages on surfaces during reactions can be visualised by several non-destructive microscopies. By using photons as the incident particles the emitted photoelectrons may be imaged and the picture will reveal differences of the work function (PEEM). If the reflected light is exploited, either an ellipso microscope for surface imaging (EMSI) or a reflection anisotropy microscope (RAM) can be utilised. Pattern formation during the catalytic CO-oxidation is observed by these methods over a wide pressure range annihilating the “pressure gap” between ultra high vacuum (UHV) and ordinary atmospheric conditions.

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Title:

Shedding Light on Surface Reactions

Subtitle:

PEEM, EMSI and RAM probed chemistry on solid surfaces

Contributors:

Rotermund, H. H. (author)

Published in:

Chemical, Structural and Electronic Analysis of Heterogeneous Surfaces on Nanometer Scale ; 103-129

NATO ASI Series ; 333

Publication date:

1997-01-01

Size:

27 pages

ISBN:

978-94-010-6414-9 , 978-94-011-5724-7

ISSN:

DOI:

https://doi.org/10.1007/978-94-011-5724-7_7

Type of media:

Article/Chapter (Book)

Type of material:

Electronic Resource

Language:

English

Keywords:

Surface Reaction , Pattern Formation , Ultra High Vacuum , Spiral Wave , Target Pattern Physics , Condensed Matter Physics , Surfaces and Interfaces, Thin Films , Physical Chemistry , Characterization and Evaluation of Materials , Measurement Science and Instrumentation

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