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Title

Adsorption of water on O(2 × 2)/Ru(0001): Thermal stability and inhibition of dissociation

AuthorsMugarza, Aitor ; Shimizu, Tomoko K.; Cabrera-Sanfélix, Pepa ; Sánchez-Portal, Daniel ; Arnau, Andrés ; Salmerón, Miquel
Issue Date8-Aug-2008
PublisherAmerican Chemical Society
CitationJournal of Physical Chemistry C 112(36): 14052-14057 (2008)
AbstractThe effect of preadsorbed oxygen on the subsequent adsorption and reactions of water on Ru(0001) has been studied using low temperature scanning tunneling microscopy and DFT calculations. Experiments were carried out for O coverages close to 0.25 ML. It was found that no dissociation of water takes place up to the desorption temperature of ~180−230 K. DFT calculations show that intact water on O(2 × 2)/Ru(0001) is ~0.49 eV more stable than the dissociation products, H and OH, at their preferred fcc and top adsorption sites.
Description6 pages, 5 figures.
Publisher version (URL)http://dx.doi.org/10.1021/jp8026622
URIhttp://hdl.handle.net/10261/8435
DOI10.1021/jp8026622
ISSN1932-7447
Appears in Collections:(CFM) Artículos
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