Adsorption of water on O(2×2)/Ru(0001)

Thermal stability and inhibition of dissociation

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

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

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
Volume112
Issue number36
DOIs
Publication statusPublished - 2008 Sep 11
Externally publishedYes

Fingerprint

Thermodynamic stability
thermal stability
dissociation
Adsorption
Discrete Fourier transforms
adsorption
Water
water
Scanning tunneling microscopy
scanning tunneling microscopy
Desorption
desorption
Oxygen
Temperature
oxygen
products
Experiments
temperature

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Energy(all)
  • Surfaces, Coatings and Films
  • Physical and Theoretical Chemistry

Cite this

Mugarza, A., Shimizu, T., Cabrera-Sanfelix, P., Sánchez-Portal, D., Arnau, A., & Salmeron, M. (2008). Adsorption of water on O(2×2)/Ru(0001): Thermal stability and inhibition of dissociation. Journal of Physical Chemistry C, 112(36), 14052-14057. https://doi.org/10.1021/jp8026622

Adsorption of water on O(2×2)/Ru(0001) : Thermal stability and inhibition of dissociation. / Mugarza, Aitor; Shimizu, Tomoko; Cabrera-Sanfelix, Pepa; Sánchez-Portal, Daniel; Arnau, Andres; Salmeron, Miquel.

In: Journal of Physical Chemistry C, Vol. 112, No. 36, 11.09.2008, p. 14052-14057.

Research output: Contribution to journalArticle

Mugarza, A, Shimizu, T, Cabrera-Sanfelix, P, Sánchez-Portal, D, Arnau, A & Salmeron, M 2008, 'Adsorption of water on O(2×2)/Ru(0001): Thermal stability and inhibition of dissociation', Journal of Physical Chemistry C, vol. 112, no. 36, pp. 14052-14057. https://doi.org/10.1021/jp8026622
Mugarza, Aitor ; Shimizu, Tomoko ; Cabrera-Sanfelix, Pepa ; Sánchez-Portal, Daniel ; Arnau, Andres ; Salmeron, Miquel. / Adsorption of water on O(2×2)/Ru(0001) : Thermal stability and inhibition of dissociation. In: Journal of Physical Chemistry C. 2008 ; Vol. 112, No. 36. pp. 14052-14057.
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