Shedding Light on Surface Reactions: PEEM, EMSI and RAM probed chemistry on 
solid surfaces

Rotermund, Harm-Hinrich

doi:10.1007/978-94-011-5724-7_7

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Shedding Light on Surface Reactions: PEEM, EMSI and RAM probed chemistry on solid surfaces

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Rotermund, Harm-Hinrich
Physical Chemistry, Fritz Haber Institute, Max Planck Society;

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Citation

Rotermund, H.-H. (1997). Shedding Light on Surface Reactions: PEEM, EMSI and RAM probed chemistry on solid surfaces. In R. Rosei (Ed.), Chemical, Structural and Electronic Analysis of Heterogeneous Surfaces on Nanometer Scale (pp. 103-129). Dordrecht: Springer.

Cite as: https://hdl.handle.net/21.11116/0000-0008-B67E-E

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.