Oxygen adsorption on Pt(110)-(1x2):: new high-coverage structures

被引：40
作者：
Helveg, S
Lorensen, HT
Horch, S
Lægsgaard, E
Stensgaard, I
Jacobsen, KW
Norskow, JK
Besenbacher, F [1 ]
机构：
[1] Aarhus Univ, CAMP, DK-8000 Aarhus C, Denmark
[2] Aarhus Univ, Inst Phys & Astron, DK-8000 Aarhus, Denmark
[3] Tech Univ Denmark, CAMP, DK-2800 Lyngby, Denmark
[4] Tech Univ Denmark, Dept Phys, DK-2800 Lyngby, Denmark
来源：
SURFACE SCIENCE | 1999年 / 430卷 / 1-3期
关键词：
chemisorption; density functional theory calculations; oxygen; platinum; scanning tunneling microscopy; surface structure;
D O I：
10.1016/S0039-6028(99)00411-2
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：
From an interplay between scanning tunneling microscopy (STM) experiments and density functional theory (DFT) calculations, a comprehensive picture is obtained for oxygen adsorption on the Pt(110)-(1 x 2) surface, from single isolated oxygen atoms chemisorbed in FCC sites along the platinum ridges to the formation of a new high-coverage oxide-like structure with a local coverage of two oxygen atoms per platinum surface atom. We find that the repulsive O-O interactions for the O/Pt(110) system are compensated by an effective O-O attractive interaction originating from a strong coupling between oxygen adsorption and platinum lattice distortions. (C) 1999 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：L533 / L539
页数：7
相关论文
共 13 条
[1]   Scanning tunnelling microscopy studies of metal surfaces [J].
Besenbacher, F .
REPORTS ON PROGRESS IN PHYSICS, 1996, 59 (12) :1737-1802
[2]   OXYGEN-CHEMISORPTION ON METAL-SURFACES - GENERAL TRENDS FOR CU, NI AND AG [J].
BESENBACHER, F ;
NORSKOV, JK .
PROGRESS IN SURFACE SCIENCE, 1993, 44 (01) :5-66
[3]   Femtomole adsorption calorimetry on single-crystal surfaces [J].
Brown, WA ;
Kose, R ;
King, DA .
CHEMICAL REVIEWS, 1998, 98 (02) :797-831
[4]   OXYGEN-ADSORPTION ON PT(110)-(1 X-2) AND PT(110)-(1 X-1) [J].
FREYER, N ;
KISKINOVA, M ;
PIRUG, G ;
BONZEL, HP .
SURFACE SCIENCE, 1986, 166 (01) :206-220
[5]   Site symmetry dependence of repulsive interactions between chemisorbed oxygen atoms on Pt{100}-(1x1) [J].
Ge, Q ;
Hu, P ;
King, DA ;
Lee, MH ;
White, JA ;
Payne, MC .
JOURNAL OF CHEMICAL PHYSICS, 1997, 106 (03) :1210-1215
[6]   Efficient iterative schemes for ab initio total-energy calculations using a plane-wave basis set [J].
Kresse, G ;
Furthmuller, J .
PHYSICAL REVIEW B, 1996, 54 (16) :11169-11186
[7]   Effect of strain on the reactivity of metal surfaces [J].
Mavrikakis, M ;
Hammer, B ;
Norskov, JK .
PHYSICAL REVIEW LETTERS, 1998, 81 (13) :2819-2822
[8]   DISSOCIATION OF OXYGEN ADMOLECULES ON PLATINUM (110)(1 X-2) RECONSTRUCTED SURFACES AT LOW-TEMPERATURES [J].
OHNO, Y ;
MATSUSHIMA, T .
SURFACE SCIENCE, 1991, 241 (1-2) :47-53
[9]  
Rotermund H. H., 1997, Surface Science Reports, V29, P265, DOI 10.1016/S0167-5729(97)00012-5
[10]   OXYGEN-ADSORPTION ON THE PT(110)(1X2) SURFACE STUDIED WITH EELS [J].
SCHMIDT, J ;
STUHLMANN, C ;
IBACH, H .
SURFACE SCIENCE, 1993, 284 (1-2) :121-128
12