CHEMISORPTION OF NO ON PT(210) STUDIED BY UPS, XPS AND AES

被引：18
|
作者：
SUGAI, S [1 ]
SHIMIZU, K [1 ]
WATANABE, H [1 ]
MIKI, H [1 ]
KAWASAKI, K [1 ]
KIOKA, T [1 ]
机构：
[1] SCI UNIV TOKYO,FAC ENGN,SHINJUKU KU,TOKYO 162,JAPAN
来源：
SURFACE SCIENCE | 1993年 / 287卷
关键词：
D O I：
10.1016/0039-6028(93)90822-2
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：
The chemisorption of NO on the Pt(210) surface has been studied by photoelectron spectroscopy (UPS and XPS) and Auger electron spectroscopy (AES). The UPS results show that NO molecular orbitals appear at 2.8, 9.6, 11.3 and 14.8 eV below the Fermi level after full coverage of NO on the Pt(210) surface at room temperature. These molecular orbitals originate from 2pi, 1pi, 5sigma and 4sigma, respectively. The peak from the 1pi orbital shifts to the lower binding energy side by 0.6 eV with increasing temperature. The molecular levels disappear at around 450 K. The energy shift of the 1pi orbital is caused by the increase of the N-O bond length, which correlates with the change of adsorption state of NO; that is, from the terminal sites to the bridge sites.The disappearance temperature of the NO molecular orbitals, T(D), and the decreasing temperature of the N(KLL) Auger electron intensity, T(A), correlate with the surface activity for NO decomposition. From the UPS and AES results for the Pt surfaces, the order of activity for the NO decomposition is as follows: (410) > (310) > (100) > (210) > (110).
引用
收藏
页码：455 / 459
页数：5
相关论文
共 50 条
  • [1] CHEMISORPTION OF NO ON PT(410) SURFACE STUDIED BY AES, UPS AND XPS
    MIKI, H
    TAKEUCHI, K
    KIOKA, T
    SUGAI, S
    KAWASAKI, K
    [J]. VACUUM, 1990, 41 (1-3) : 105 - 108
  • [2] CHEMISORPTION OF NO ON MO(110) SURFACE STUDIED BY AES, UPS AND XPS
    KIOKA, T
    YOKOTA, M
    MIKI, H
    SUGAI, S
    KAWASAKI, K
    [J]. SURFACE SCIENCE, 1989, 216 (03) : 409 - 419
  • [3] CHEMISORPTION OF NO ON PD SINGLE-CRYSTALS STUDIED BY UPS, AES AND XPS
    SUGAI, S
    WATANABE, H
    MIKI, H
    KIOKA, T
    KAWASAKI, K
    [J]. VACUUM, 1990, 41 (1-3) : 90 - 92
  • [4] CHEMISORPTION OF NO ON POLYCRYSTALLINE PD SURFACE STUDIED BY TDS, AES, UPS AND XPS
    MIKI, H
    NAGASE, H
    NAGASE, T
    KIOKA, T
    SUGAI, S
    KAWASAKI, K
    [J]. APPLIED SURFACE SCIENCE, 1988, 33-4 : 292 - 300
  • [5] CHEMISORPTION OF NO ON PD(100), (111) AND (110) SURFACES STUDIED BY AES, UPS AND XPS
    SUGAI, SG
    WATANABE, H
    KIOKA, T
    MIKI, H
    KAWASAKI, K
    [J]. SURFACE SCIENCE, 1991, 259 (1-2) : 109 - 115
  • [6] CHEMISORPTION OF NO ON MO(100) AND MO(111) SURFACES STUDIED BY AES, UPS AND XPS
    KIOKA, T
    [J]. SURFACE SCIENCE, 1989, 222 (01) : 140 - 152
  • [7] ADSORPTION AND DISSOCIATION OF NO ON PT(100) AND (310) STUDIED BY AES, UPS AND XPS
    SUGAI, S
    TAKEUCHI, K
    BAN, T
    MIKI, H
    KAWASAKI, K
    KIOKA, T
    [J]. SURFACE SCIENCE, 1993, 282 (1-2) : 67 - 75
  • [8] CHEMISORPTION OF HYDROGEN ON CR(111) STUDIED BY XPS, UPS, AND HREELS
    FUKUDA, Y
    NAGOSHI, M
    [J]. APPLIED SURFACE SCIENCE, 1991, 48-9 : 147 - 150
  • [9] CHEMISORPTION OF CO ON (1011) TITANIUM STUDIED BY XPS, UPS, FDMS, AND AIB
    FUKUDA, Y
    LANCASTER, GM
    HONDA, F
    RABALAIS, JW
    [J]. JOURNAL OF CHEMICAL PHYSICS, 1978, 69 (08): : 3447 - 3452
  • [10] CHEMISORPTION OF NO ON W(100) AND W(110) SURFACES STUDIED BY AES AND UPS
    KIOKA, T
    KAWANA, A
    MIKI, H
    SUGAI, S
    KAWASAKI, K
    [J]. SURFACE SCIENCE, 1987, 182 (1-2) : 28 - 40
12345