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

Aitor Mugarza, Tomoko K. Shimizu, Pepa Cabrera-Sanfelix, Daniel Sánchez-Portal, Andres Arnau, Miquel Salmeron

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)


The 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 fee and top adsorption sites.

Original languageEnglish
Pages (from-to)14052-14057
Number of pages6
JournalJournal of Physical Chemistry C
Issue number36
Publication statusPublished - 2008 Sept 11
Externally publishedYes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • General Energy
  • Physical and Theoretical Chemistry
  • Surfaces, Coatings and Films


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