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 language | English |
|---|---|
| Pages (from-to) | 14052-14057 |
| Number of pages | 6 |
| Journal | Journal of Physical Chemistry C |
| Volume | 112 |
| Issue number | 36 |
| DOIs | |
| Publication status | Published - 2008 Sep 11 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Energy(all)
- Surfaces, Coatings and Films
- Physical and Theoretical Chemistry
Cite this
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 journal › Article
}
TY - JOUR
T1 - Adsorption of water on O(2×2)/Ru(0001)
T2 - Thermal stability and inhibition of dissociation
AU - Mugarza, Aitor
AU - Shimizu, Tomoko
AU - Cabrera-Sanfelix, Pepa
AU - Sánchez-Portal, Daniel
AU - Arnau, Andres
AU - Salmeron, Miquel
PY - 2008/9/11
Y1 - 2008/9/11
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=52649166182&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=52649166182&partnerID=8YFLogxK
U2 - 10.1021/jp8026622
DO - 10.1021/jp8026622
M3 - Article
VL - 112
SP - 14052
EP - 14057
JO - Journal of Physical Chemistry C
JF - Journal of Physical Chemistry C
SN - 1932-7447
IS - 36
ER -