Adsorption of benzene on ordered Sn/Pt(111) surface alloys

被引：29
|
作者：
Breitbach, J [1 ]
Franke, D [1 ]
Hamm, G [1 ]
Becker, C [1 ]
Wandelt, K [1 ]
机构：
[1] Univ Bonn, Inst Phys Chem, D-53115 Bonn, Germany
来源：
SURFACE SCIENCE | 2002年 / 507卷
关键词：
platinum; tin; aromatics; electron energy loss spectroscopy (EELS); photoelectron spectroscopy; thermal desorption;
D O I：
10.1016/S0039-6028(02)01168-8
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 benzene (C6H6) on Pt(1 1 1) and two Sn/Pt(1 1 1) surface alloys has been investigated using high resolution electron energy loss spectroscopy, ultraviolet photoelectron spectroscopy and temperature programmed desorption. The two ordered Sn/Pt(1 1 1) alloys were prepared by annealing a thin Sri film deposited onto Pt(1 1 1). Depending on the temperature of annealing the surface exhibited a (2 x 2) or (root3 x root3)R30degrees LEED pattern corresponding to a surface composition of Pt3Sn and Pt2Sn, respectively. At temperatures below 350 K benzene adsorbs intact on the pure Pt(1 1 1) surface. The molecule is pi-bonded with its ring parallel to the substrate. Upon heating part of the benzene desorbs and the remaining amount dehydrogenates to carbon. On both Sn/Pt(1 1 1) alloys benzene is physisorbed and the decomposition is completely suppressed. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：18 / 22
页数：5
相关论文
共 50 条
  • [1] ADSORPTION OF CYCLOHEXANE AND BENZENE ON ORDERED SN/PT(111) SURFACE ALLOYS
    XU, C
    TSAI, YL
    KOEL, BE
    JOURNAL OF PHYSICAL CHEMISTRY, 1994, 98 (02): : 585 - 593
  • [2] The adsorption of benzene on Pd(111) and ordered Sn/Pd(111) surface alloys
    Hamm, G
    Schmidt, T
    Breitbach, J
    Franke, D
    Becker, C
    Wandelt, K
    SURFACE SCIENCE, 2004, 562 (1-3) : 170 - 182
  • [3] Adsorption of cyclopentene on Pt(111) and ordered PtnSn/Pt(111) surface alloys
    Becker, C
    Delbecq, F
    Breitbach, J
    Hamm, G
    Franke, D
    Jäger, F
    Wandelt, K
    JOURNAL OF PHYSICAL CHEMISTRY B, 2004, 108 (49): : 18960 - 18971
  • [4] Adsorption and reaction of acetaldehyde on Pt(111) and Sn/Pt(111) surface alloys
    Zhao, HB
    Kim, J
    Koel, BE
    SURFACE SCIENCE, 2003, 538 (03) : 147 - 159
  • [5] DEHYDROGENATION OF CYCLOHEXENE ON ORDERED SN/PT(111) SURFACE ALLOYS
    XU, C
    KOEL, BE
    SURFACE SCIENCE, 1994, 304 (03) : 249 - 266
  • [6] Deuterium dissociation on ordered Sn/Pt(111) surface alloys
    Samson, P
    Nesbitt, A
    Koel, BE
    Hodgson, A
    JOURNAL OF CHEMICAL PHYSICS, 1998, 109 (08): : 3255 - 3264
  • [7] CHEMISORPTION OF ETHYLENE ON ORDERED SN/PT(111) SURFACE ALLOYS
    PAFFETT, MT
    GEBHARD, SC
    WINDHAM, RG
    KOEL, BE
    SURFACE SCIENCE, 1989, 223 (03) : 449 - 464
  • [8] The Adsorption of Ethene on Pd(111) and Ordered Sn/Pd(111) Surface Alloys
    Hamm, G.
    Schmidt, T.
    Breitbach, J.
    Franke, D.
    Becker, C.
    Wandelt, K.
    ZEITSCHRIFT FUR PHYSIKALISCHE CHEMIE-INTERNATIONAL JOURNAL OF RESEARCH IN PHYSICAL CHEMISTRY & CHEMICAL PHYSICS, 2009, 223 (1-2): : 209 - 232
  • [9] New insights in adsorption and dehydrogenation of cyclohexene on Pt(111) and ordered Pt-Sn surface alloys:: Experiment and theory
    Delbecq, Francoise
    Vigne-Maeder, Fabienne
    Becker, Conrad
    Breitbach, Juergen
    Wandelt, Klaus
    JOURNAL OF PHYSICAL CHEMISTRY C, 2008, 112 (02): : 555 - 566
  • [10] Adsorption of thermal D atoms on Sn/Pt(111) surface alloys
    Voss, MR
    Busse, H
    Koel, BE
    SURFACE SCIENCE, 1998, 414 (03) : 330 - 340
12345