'Magic' island formation of CO coadsorbed with H on Ru(0001)

被引：20
|
作者：
Riedmüller, B
Papageorgopoulos, DC
Berenbak, B
van Santen, RA
Kleyn, AW
机构：
[1] Leiden Univ, Leiden Inst Chem Gorlaeus Labs, NL-2300 RA Leiden, Netherlands
[2] FOM, Inst Atom & Mol Phys, NL-1098 SJ Amsterdam, Netherlands
[3] Univ Liverpool, Surface Sci Res Ctr, Liverpool L69 3BX, Merseyside, England
[4] Free Univ Amsterdam, Fac Exact Sci, Dept Chem Phys, NL-1081 HV Amsterdam, Netherlands
[5] Eindhoven Univ Technol, Schuit Inst Catalysis, NL-5600 MB Eindhoven, Netherlands
来源：
SURFACE SCIENCE | 2002年 / 515卷 / 2-3期
关键词：
carbon monoxide; ruthenium; hydrogen atom; growth; clusters;
D O I：
10.1016/S0039-6028(02)01912-X
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 mutual interaction between carbon monoxide and hydrogen coadsorbed on Ru(0001) has been studied by thermal desorption spectroscopy and thermal He-atom scattering. At 250 K, the hydrogen of a fully hydrogenated Ru surface is displaced by CO. During displacement CO segregates into islands already at very low coverages. At a low exposure pressure (1.5 x 10(-9) mbar) small islands with a 'magic' size of seven molecules are formed, whilst higher exposure pressures (2 x 10(-8) mbar) lead to larger islands. This behavior is in contradiction with a mean field description of island growth introduced by Venables [Rep. Prog. Phys. 47 (1984) 399]. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：323 / 336
页数：14
相关论文
共 50 条
  • [1] Vibrational analysis of Cs + CO coadsorbed on Ru(0001)
    Fritz-Haber-Inst der, Max-Planck-Gesellschaft, Berlin, Germany
    Surf Sci, (1-4):
  • [2] Interaction of Coadsorbed CO and Deuterium on a Bimetallic, Pt Monolayer Island Modified Ru(0001) Surface
    Hartmann, H.
    Bansmann, J.
    Diemant, T.
    Behm, R. J.
    JOURNAL OF PHYSICAL CHEMISTRY C, 2014, 118 (50): : 28948 - 28958
  • [3] Vibrational analysis of Cs+CO coadsorbed on Ru(0001)
    He, PM
    Xu, YB
    Jacobi, K
    SURFACE SCIENCE, 1996, 352 : 1 - 4
  • [4] STRUCTURAL-ANALYSES OF CS+CO COADSORBED ON RU(0001)
    OVER, H
    BLUDAU, H
    KOSE, R
    ERTL, G
    PHYSICAL REVIEW B, 1995, 51 (07): : 4661 - 4664
  • [5] Electronic properties of Cs+CO coadsorbed on the Ru(0001) surface
    Fichtner-Endruschat, S
    De Renzi, V
    Morgante, A
    Schwegmann, S
    Bludau, H
    Schuster, R
    Bottcher, A
    Over, H
    JOURNAL OF CHEMICAL PHYSICS, 1998, 108 (02): : 774 - 779
  • [6] Electronic properties of Cs+CO coadsorbed on the Ru(0001) surface
    J Chem Phys, 2 (774):
  • [7] CO overlayers on Ru(0001) studied by helium atom scattering: Structure, dynamics, and the influence of coadsorbed H and O
    Braun, J
    Kostov, KL
    Witte, G
    Woll, C
    JOURNAL OF CHEMICAL PHYSICS, 1997, 106 (19): : 8262 - 8273
  • [8] CS AND CO COADSORBED ON RU(0001) - LOW-ENERGY-ELECTRON DIFFRACTION ANALYSIS
    OVER, H
    BLUDAU, H
    KOSE, R
    ERTL, G
    SURFACE SCIENCE, 1995, 331 (pt A) : 62 - 68
  • [9] INTERACTIONS OF CO AND SODIUM COADSORBED ON RU(1010)
    KISKINOVA, M
    SURFACE SCIENCE, 1987, 182 (1-2) : 150 - 160
  • [10] THE ROLE OF COADSORBED OXYGEN IN NCO FORMATION ON RU(001)
    KOSTOV, KL
    RAUSCHER, H
    MENZEL, D
    SURFACE SCIENCE, 1993, 287 (pt A) : 283 - 287
12345