Water adsorption on O-covered Ru{0001}: coverage-dependent change from dissociation to molecular adsorptionGladys, M. J., Mikkelsen, A., Andersen, J. N. and Held, G. (2005) Water adsorption on O-covered Ru{0001}: coverage-dependent change from dissociation to molecular adsorption. Chemical Physics Letters, 414 (4-6). pp. 311-315. ISSN 0009-2614 Full text not archived in this repository. It is advisable to refer to the publisher's version if you intend to cite from this work. See Guidance on citing. To link to this item DOI: 10.1016/j.cplett.2005.08.077 Abstract/SummaryWhen 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 220 K, which is significantly more stable than intact water on the clean surface. The presence of this species causes a shift in the O 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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