Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
9582176 | Chemical Physics Letters | 2005 | 5 Pages |
Abstract
When water is coadsorbed with oxygen at coverages above 0.25ML an intact water species is observed in high resolution X-ray photoelectron spectroscopy up to 220Â K, which is significantly more stable than intact water on the clean surface. The presence of this species causes a shift in the OÂ 1s binding energy of the pre-adsorbed oxygen, which indicates the formation of hydrogen bonds between the two adsorbates. Low coverages of oxygen induce partial dissociation and recombinative desorption in the same temperature range, which illustrates that desorption temperatures alone cannot be used to determine whether water is molecularly intact or not.
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Authors
M.J. Gladys, A. Mikkelsen, J.N. Andersen, G. Held,