Infrared reflection absorption spectroscopy study of CO adsorption and reaction on oxidized Pd(100)

被引：14
|
作者：
Gao, Feng [1 ]
Lundwall, Matthew [1 ]
Goodman, D. Wayne [1 ]
机构：
[1] Texas A&M Univ, Dept Chem, College Stn, TX 77842 USA
来源：
JOURNAL OF PHYSICAL CHEMISTRY C | 2008年 / 112卷 / 15期
关键词：
D O I：
10.1021/jp710713r
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, desorption, and reaction of CO on the (root 5x root 5)R27 degrees surface oxide on Pd(100) grown by two methods was investigated with infrared reflection absorption spectroscopy. CO multilayer desorbs at similar to 40 K, whereas monolayer desorption is complete at similar to 210 K. The surface oxide formed at 575 K with a 600 Langmuir (L) exposure of O-2 exhibits a stronger interaction with CO compared with a surface oxide formed at 575 K with a 4500 L O-2 exposure, presumably due to defects in the former. The surface oxide formed with a lower exposure of O-2 exhibits enhanced reactivity with CO at 400 K. Below 60 K, O-2 blocks CO adsorption on the monolayer oxide.
引用
收藏
页码：6057 / 6064
页数：8
相关论文
共 50 条
  • [1] THE ADSORPTION OF CO ON PD(100) STUDIED BY IR REFLECTION ABSORPTION-SPECTROSCOPY
    ORTEGA, A
    HOFFMAN, FM
    BRADSHAW, AM
    SURFACE SCIENCE, 1982, 119 (01) : 79 - 94
  • [2] ADSORPTION OF CO ON RH(100) STUDIED BY INFRARED REFLECTION ABSORPTION-SPECTROSCOPY
    LEUNG, LWH
    HE, JW
    GOODMAN, DW
    JOURNAL OF CHEMICAL PHYSICS, 1990, 93 (11): : 8328 - 8336
  • [3] Adsorption and reaction of NO on Cu(100): An infrared reflection absorption spectroscopic study at 25 K
    Kim, CM
    Yi, CW
    Goodman, DW
    JOURNAL OF PHYSICAL CHEMISTRY B, 2002, 106 (28): : 7065 - 7068
  • [4] Infrared reflection absorption spectral study for CO adsorption on Pd/Pt(111) bimetallic surfaces
    Todoroki, N.
    Osano, H.
    Maeyama, T.
    Yoshida, H.
    Wadayama, T.
    APPLIED SURFACE SCIENCE, 2009, 256 (04) : 943 - 947
  • [5] THE ADSORPTION AND REACTION OF METHANOL ON OXIDIZED COPPER(111) STUDIED BY FOURIER-TRANSFORM REFLECTION ABSORPTION INFRARED-SPECTROSCOPY
    CHESTERS, MA
    MCCASH, EM
    SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY, 1987, 43 (12): : 1625 - 1630
  • [6] Polarization modulation infrared reflection absorption spectroscopy at elevated pressures: CO adsorption on Pd(111) at atmospheric pressures
    Ozensoy, E
    Meier, DC
    Goodman, DW
    JOURNAL OF PHYSICAL CHEMISTRY B, 2002, 106 (36): : 9367 - 9371
  • [7] A COMPARATIVE-STUDY OF THE COADSORPTION OF CO AND NO ON PD(100), PD(111), AND SILICA-SUPPORTED PALLADIUM PARTICLES WITH INFRARED REFLECTION-ABSORPTION SPECTROSCOPY
    XU, XP
    CHEN, PJ
    GOODMAN, DW
    JOURNAL OF PHYSICAL CHEMISTRY, 1994, 98 (37): : 9242 - 9246
  • [8] Photoelastic modulation-reflection absorption infrared spectroscopy of CO on Pd(111)
    Stacchiola, D
    Thompson, AW
    Kaltchev, M
    Tysoe, WT
    JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A, 2002, 20 (06): : 2101 - 2105
  • [9] STUDY OF THE ADSORPTION OF TRIETHYLGALLIUM, AMMONIA, AND HYDRAZINE ON MGO(100) USING INFRARED REFLECTION-ABSORPTION SPECTROSCOPY
    BERMUDEZ, VM
    JOURNAL OF PHYSICAL CHEMISTRY, 1994, 98 (09): : 2469 - 2477
  • [10] THE ADSORPTION OF CO ON PT(111) STUDIED BY INFRARED REFLECTION-ABSORPTION SPECTROSCOPY
    HAYDEN, BE
    BRADSHAW, AM
    SURFACE SCIENCE, 1983, 125 (03) : 787 - 802
12345