CO adsorption on Pt-Ru surface alloys and on the surface of Pt-Ru bulk alloy

Authors
Ge, Q Desai, S Neurock, M Kourtakis, K
Citation
Q. Ge et al., CO adsorption on Pt-Ru surface alloys and on the surface of Pt-Ru bulk alloy, J PHYS CH B, 105(39), 2001, pp. 9533-9536
Citations number
26
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
JOURNAL OF PHYSICAL CHEMISTRY B
ISSN journal
15206106 → ACNP
Volume
105
Issue
39
Year of publication
2001
Pages
9533 - 9536
Database
ISI
SICI code
1520-6106(20011004)105:39<9533:CAOPSA>2.0.ZU;2-L
Abstract
We present results of first-principle studies for energetics and structural properties of CO adsorbed on the Pt-Ru surface alloys and on the surface o f a bulk Pt-Ru alloy. The results showed that the Ru-CO bond strength was i ncreased from 2.0 to 2.1 eV, whereas the Pt-CO bond was weakened from 1.54 to 1.36 eV after Ru alloying with Pt for the bulk Pt-Ru alloy. On the other hand, both Ru-CO and Pt-CO bonds are strengthened on the surface alloys.