CO adsorption on Pd(110)

被引：13
|
作者：
Jones, IZ [1 ]
Bennett, RA [1 ]
Bowker, M [1 ]
机构：
[1] Univ Reading, Catalysis Res Ctr, Dept Chem, Reading RG6 6AD, Berks, England
来源：
SURFACE SCIENCE | 1998年 / 402卷 / 1-3期
基金：
英国工程与自然科学研究理事会;
关键词：
carbon monoxide; low index single crystal surfaces; palladium; sticking; surface relaxation and reconstruction; synchrotron radiation photoelectron spectroscopy; thermal desorption; X-ray photoelectron spectroscopy;
D O I：
10.1016/S0039-6028(98)00005-3
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：
CO sticking, adsorption and desorption on Pd(110) has been studied using a molecular beam reactor and real time temperature-programmed X-ray photoelectron spectroscopy (TPXPS). The initial sticking and total uptake decrease with increasing temperature. The C 1s and O 1s binding energies were followed during adsorption, and shifted to higher energy with increasing exposure. TPXPS reveals a decrease in C 1s and O 1s signal intensity at similar to 340 K which coincides with the alpha(3) CO desorption, associated with substrate reconstruction. Binding energy shifts in the C 1s region do not appear to be correlated with this reconstruction, and are thus only dependent upon coverage. (C) 1998 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：595 / 598
页数：4
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