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Experimental evidence for a partially dissociated water bilayer on Ru{0001}

Weissenrieder, Jonas LU ; Mikkelsen, Anders LU ; Andersen, Jesper N LU ; Feibelman, PJ and Held, G (2004) In Physical Review Letters 93(19).
Abstract
Core-level photoelectron spectra, in excellent agreement with ab initio calculations, confirm that the stable wetting layer of water on Ru{0001} contains O-H and H2O in roughly 3:5 proportion, for OHx coverages between 0.25 and 0.7 ML, and T<170 K. Proton disorder explains why the wetting structure looks to low energy electron diffraction (LEED) to be an ordered p(root3xroot3)R30degrees adlayer, even though approximate to3/8 of its molecules are dissociated. Complete dissociation to atomic oxygen starts near 190 K. Low photon flux in the synchrotron experiments ensured that the diagnosis of the nature of the wetting structure quantified by LEED is free of beam-induced damage.
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Physical Review Letters
volume
93
issue
19
publisher
American Physical Society
external identifiers
  • wos:000224924900043
  • scopus:19744369198
ISSN
1079-7114
DOI
10.1103/PhysRevLett.93.196102
language
English
LU publication?
yes
id
b0de6eab-0cbc-4b36-8079-51b4feb65817 (old id 262301)
date added to LUP
2007-11-05 13:07:29
date last changed
2017-08-27 04:11:56
@article{b0de6eab-0cbc-4b36-8079-51b4feb65817,
  abstract     = {Core-level photoelectron spectra, in excellent agreement with ab initio calculations, confirm that the stable wetting layer of water on Ru{0001} contains O-H and H2O in roughly 3:5 proportion, for OHx coverages between 0.25 and 0.7 ML, and T&lt;170 K. Proton disorder explains why the wetting structure looks to low energy electron diffraction (LEED) to be an ordered p(root3xroot3)R30degrees adlayer, even though approximate to3/8 of its molecules are dissociated. Complete dissociation to atomic oxygen starts near 190 K. Low photon flux in the synchrotron experiments ensured that the diagnosis of the nature of the wetting structure quantified by LEED is free of beam-induced damage.},
  articleno    = {196102},
  author       = {Weissenrieder, Jonas and Mikkelsen, Anders and Andersen, Jesper N and Feibelman, PJ and Held, G},
  issn         = {1079-7114},
  language     = {eng},
  number       = {19},
  publisher    = {American Physical Society},
  series       = {Physical Review Letters},
  title        = {Experimental evidence for a partially dissociated water bilayer on Ru{0001}},
  url          = {http://dx.doi.org/10.1103/PhysRevLett.93.196102},
  volume       = {93},
  year         = {2004},
}