Displacement of ethene and cyclohexene from polycrystalline Pt and Pt(110)electrodes

Authors
Muller, U Baltruschat, H
Citation
U. Muller et H. Baltruschat, Displacement of ethene and cyclohexene from polycrystalline Pt and Pt(110)electrodes, J PHYS CH B, 104(24), 2000, pp. 5762-5767
Citations number
27
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
JOURNAL OF PHYSICAL CHEMISTRY B
ISSN journal
15206106 → ACNP
Volume
104
Issue
24
Year of publication
2000
Pages
5762 - 5767
Database
ISI
SICI code
1520-6106(20000622)104:24<5762:DOEACF>2.0.ZU;2-A
Abstract
The adsorbate formed after adsorption of cyclohexene on Pt(110) and polycry stalline Pt electrodes is displaced by competitive adsorption of UPD copper . Since it desorbs as benzene, cyclohexene is dehydrogenated during adsorpt ion. After adsorption of ethene on polycrystalline Pt, only 10% of the adso rbate are displaced by Cu, leaving the surface as ethene. This corresponds to weakly adsorbed species, probably pi-bound ethene.