CO on Pt(111):: binding site assignment from the interplay between measured and calculated STM images

被引:63
作者
Pedersen, MO [1 ]
Bocquet, ML
Sautet, P
Lægsgaard, E
Stensgaard, I
Besenbacher, F
机构
[1] Aarhus Univ, Inst Phys & Astron, DK-8000 Aarhus, Denmark
[2] Ecole Normale Super Lyon, Chim Theor Lab, F-69364 Lyon 07, France
[3] Inst Rech Catalyse, CNRS, F-69626 Villeurbanne, France
关键词
D O I
10.1016/S0009-2614(98)01318-9
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 CO on Pt(111) has been studied with variable temperature scanning tunnelling microscopy (STM). The well-known c(4 x 2)-CO structure formed at saturation has been used as a test system for the determination of molecular adsorption sites in an overlayer structure from comparison between theoretical and experimental STM images. By calculating the STM images of the c(4 x 2)-CO structure with CO placed in different adsorption sites on the surface, only the structure with CO in on-top and bridge sites agrees with the experimental images. (C) 1999 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:403 / 409
页数:7
相关论文
共 20 条
[1]   MIX OF MOLECULAR ADSORPTION SITES DETECTED FOR DISORDERED CO ON PT(111) BY DIFFUSE LOW-ENERGY ELECTRON-DIFFRACTION [J].
BLACKMAN, GS ;
XU, ML ;
OGLETREE, DF ;
VANHOVE, MA ;
SOMORJAI, GA .
PHYSICAL REVIEW LETTERS, 1988, 61 (20) :2352-2355
[2]   STM and chemistry: A qualitative molecular orbital understanding of the image of CO oil a Pt surface [J].
Bocquet, ML ;
Sautet, P .
SURFACE SCIENCE, 1996, 360 (1-3) :128-136
[3]   The role of surface relaxations in determining the STM images of sulfur adatoms and clusters on Re(0001): theory versus experiment [J].
Cerda, J ;
Van Hove, MA ;
Sautet, P ;
Salmeron, M .
SURFACE SCIENCE, 1998, 409 (02) :145-159
[4]  
Clementi E., 1974, Atomic Data and Nuclear Data Tables, V14, P177, DOI 10.1016/S0092-640X(74)80016-1
[5]   TIP-DEPENDENT CONTRAST IN STM IMAGING OF ADSORBED SULFUR LAYERS - THEORY AND EXPERIMENT [J].
DUNPHY, JC ;
OGLETREE, DF ;
SALMERON, MB ;
SAUTET, P ;
BOCQUET, ML ;
JOACHIM, C .
ULTRAMICROSCOPY, 1992, 42 :490-497
[6]   ADSORPTION OF CO ON PT(111) AND PT 6(111) X (111) STUDIED BY HIGH-RESOLUTION ELECTRON-ENERGY LOSS SPECTROSCOPY AND THERMAL DESORPTION SPECTROSCOPY [J].
HOPSTER, H ;
IBACH, H .
SURFACE SCIENCE, 1978, 77 (01) :109-117
[7]   ELECTRICAL RESISTANCE OF DISORDERED ONE-DIMENSIONAL LATTICES [J].
LANDAUER, R .
PHILOSOPHICAL MAGAZINE, 1970, 21 (172) :863-&
[8]  
McLean A. D., 1981, Atomic Data and Nuclear Data Tables, V26, P197, DOI 10.1016/0092-640X(81)90012-7
[9]   LEED INTENSITY ANALYSIS OF THE STRUCTURES OF CLEAN PT(111) AND OF CO ADSORBED ON PT(111) IN THE C(4X2) ARRANGEMENT [J].
OGLETREE, DF ;
VANHOVE, MA ;
SOMORJAI, GA .
SURFACE SCIENCE, 1986, 173 (2-3) :351-365
[10]   Is CO chemisorbed on Pt anomalous compared with Ni and Pd? An example of surface chemistry dominated by relativistic effects [J].
Pacchioni, G ;
Chung, SC ;
Kruger, S ;
Rosch, N .
SURFACE SCIENCE, 1997, 392 (1-3) :173-184