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Journal Article

Investigation of the NO + H2 reaction on Pt{100} with low-energy emission and reflection microscopy: PEEM studies

MPS-Authors
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Rausenberger,  Bernd
Fritz Haber Institute, Max Planck Society;

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Mundschau,  Michael V.
Fritz Haber Institute, Max Planck Society;

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Swiech,  W.
Fritz Haber Institute, Max Planck Society;

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Engel,  Wilfried
Fritz Haber Institute, Max Planck Society;

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Bradshaw,  Alexander M.
Fritz Haber Institute, Max Planck Society;

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Citation

Rausenberger, B., Mundschau, M. V., Swiech, W., Engel, W., & Bradshaw, A. M. (1996). Investigation of the NO + H2 reaction on Pt{100} with low-energy emission and reflection microscopy: PEEM studies. Journal of the Chemical Society, Faraday Transactions, 92(23), 4815-4821. doi:10.1039/FT9969204815.


Cite as: https://hdl.handle.net/21.11116/0000-0009-AAFE-A
Abstract
Using the technique of photoemission electron microscopy (PEEM) we have examined the reaction between NO and hydrogen on Pt{100} during transient changes in the partial pressures of the reactants. On switching to a hydrogen-rich ambient, reaction–diffusion fronts are formed, the nucleation, velocity and shape of which vary strongly with temperature and the rate of change in partial pressure. Behind the fronts an adsorbate, probably NH3, produces low workfunction areas on the surface. Below 370 K, however, a different adsorbate, possibly HNO, is formed.