Surface electronic structure of α-Mo2C(0001)

被引：11
|
作者：
Kato, M
Sato, T
Ozawa, K
Edamoto, K
Otani, S
机构：
[1] Rikkyo Univ, Dept Chem, Toshima Ku, Tokyo 1718501, Japan
[2] Tokyo Inst Technol, Dept Chem & Mat Sci, Tokyo 1520033, Japan
[3] Natl Inst Mat Sci, Tsukuba, Ibaraki 3050044, Japan
来源：
SURFACE SCIENCE | 2006年 / 600卷 / 02期
关键词：
angle-resolved photoemission; surface electronic phenomena (work function; surface potential; surface states; etc.); carbides; low index single crystal surfaces;
D O I：
10.1016/j.susc.2005.10.043
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 electronic structure of alpha-Mo2C(0001) has been investigated by angle-resolved photoemission spectroscopy utilizing synchrotron radiation. A sharp peak is observed at 3.3 eV in normal-emission spectra. Since the peak shows no dispersion as a function of photon energy and is sensitively attenuated by oxygen adsorption, the initial state of the peak is attributed to a surface state. Resonant photoemission study shows that the state includes substantial contribution of 4d orbitals of the Mo atoms in the second layer. The emissions with constant kinetic energies of 22 and 31 eV above the Fermi level (E-F) are found in normal-emission spectra, and these emissions are interpreted as originating from the Mo N1N23V and N23VV Auger transitions, respectively. (c) 2005 Elsevier B.V. All rights reserved.
引用
收藏
页码：448 / 452
页数：5
相关论文
共 50 条
  • [41] A first-principles study on structural and electronic properties of Mo2C
    Liu, Hailiang
    Zhu, Jingchuan
    Lai, Zhonghong
    Zhao, Rongda
    He, Dong
    SCRIPTA MATERIALIA, 2009, 60 (11) : 949 - 952
  • [42] C(Mo2C) and Pt-C(Mo2C) based mixed catalysts for oxygen reduction reaction
    Jaeger, Rutha
    Haerk, Eneli
    Romann, Tavo
    Joost, Urmas
    Lust, Enn
    JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 2016, 761 : 89 - 97
  • [43] Effects of potassium on the chemisorption of CO2 and CO on the Mo2C/Mo(100) surface
    Solymosi, F
    Bugyi, L
    CATALYSIS LETTERS, 2000, 66 (04) : 227 - 230
  • [44] Conversion of methane to benzene over Mo2C and Mo2C/ZSM-5 catalysts
    Solymosi, F.
    Szoeke, A.
    Cserenyi, J.
    Catalysis Letters, 39 (3-4):
  • [45] High resolution images of Mo2C(0001)-(√3 x √3)R30° structure by scanning tunneling microscopy
    Lo, RL
    Fukui, K
    Otani, S
    Iwasawa, Y
    SURFACE SCIENCE, 1999, 440 (03) : L857 - L862
  • [46] Assessing the role of surface carbon on the surface stability and reactivity of β-Mo2C catalysts
    Tacey, Sean A.
    Jankousky, Matthew
    Farberow, Carrie A.
    APPLIED SURFACE SCIENCE, 2022, 593
  • [47] DECREASE IN CARBON CONCENTRATION IN MO2C AND W2C SURFACE LAYERS
    SOTNIKOV, VT
    REDKIN, VS
    ZASHKVAR.VV
    CHAIKOVS.EF
    KORSUNSK.MI
    SOVIET PHYSICS SOLID STATE,USSR, 1971, 13 (04): : 878 - &
  • [48] Effects of potassium on the chemisorption of CO2 and CO on the Mo2C/Mo(100) surface
    F. Solymosi
    L. Bugyi
    Catalysis Letters, 2000, 66 : 227 - 230
  • [49] Conversion of methane to benzene over Mo2C and Mo2C/ZSM-5 catalysts
    Solymosi, F
    Szoke, A
    Cserenyi, J
    CATALYSIS LETTERS, 1996, 39 (3-4) : 157 - 161
  • [50] Comparative DFT study of methanol decomposition on Mo2C(001) and Mo2C(101) surfaces
    Shi, Yun
    JOURNAL OF MOLECULAR MODELING, 2023, 29 (08)
12345