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The effect of water on the formation of strongly bound oxygen on silver surfaces

MPS-Authors
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Bao,  Xinhe
Physical Chemistry, Fritz Haber Institute, Max Planck Society;

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Muhler,  Martin
Physical Chemistry, Fritz Haber Institute, Max Planck Society;

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Pettinger,  Bruno
Chemical Physics, Fritz Haber Institute, Max Planck Society;

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Uchida,  Yuji
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;

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Lehmpfuhl,  Günter
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;

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Schloegl,  R.
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;

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Ertl,  Gerhard
Physical Chemistry, Fritz Haber Institute, Max Planck Society;

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Citation

Bao, X., Muhler, M., Pettinger, B., Uchida, Y., Lehmpfuhl, G., Schloegl, R., et al. (1995). The effect of water on the formation of strongly bound oxygen on silver surfaces. Catalysis Letters, 32(1-2), 171-183. doi:10.1007/BF00806112.


Cite as: https://hdl.handle.net/21.11116/0000-0009-5636-A
Abstract
Interaction of water with an oxygenated Ag(111) surface leads to an enhancement of the surface restructuring and an activated formation of hydroxyl groups (OH) located stably on the surface and incorporated in the subsurface region, as evidenced by means of reflection electron microscopy (REM) and in situ Raman spectroscopy. Dehydroxylation of OHads at elevated temperatures releases the strongly bound oxygen species labelled Oy at the surface, and offers an alternative to the energetically less favorable pathway for the direct formation of the Oy species from molecular oxygen.