THE EFFECT OF K, CS AND O ATOMS ON ETHYLENE ADSORPTION ON THE PT(111) SURFACE

被引：49

作者：

CASSUTO, A

MANE, M

HUGENSCHMIDT, M

DOLLE, P

JUPILLE, J

机构：

[1] CNRS, Laboratoire Maurice Letort, associé à l'Université de Nancy I

来源：

SURFACE SCIENCE | 1990年 / 237卷 / 1-3期

关键词：

D O I：

10.1016/0039-6028(90)90519-E

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The adsorption of C2H4 on bare and Cs-, K-, O-precovered Pt(111) surfaces has been investigated, using UPS and TDS. All coadsorbates induce the appearance of more loosely (π-bonded) adsorbed species. In the presence of alkali adatoms, these new species are almost undistorted compared to gaseous, multilayered ethylene and ethylene adsorbed as a monolayer at 37 K. However, some distortion exists when ethylene is coadsorbed with oxygen atoms. The C2H4 valence-level shifts observed in the presence of K (Cs) are consistent with the electrostatic field existing in the vicinity of the alkali metal adatoms. © 1990.

引用

页码：63 / 71

页数：9

共 52 条

[1] THE CHARACTERIZATION OF SURFACE ACETYLENE AND ETHYLENE SPECIES ON PT(111) BY ANGLE RESOLVED PHOTOEMISSION USING SYNCHROTRON RADIATION [J].