Direct observation of key reaction intermediates on gold clusters

被引:195
作者
Stolcic, D
Fischer, M
Ganteför, G
Kim, YD [1 ]
Sun, Q
Jena, P
机构
[1] Univ Konstanz, Dept Phys, D-78457 Constance, Germany
[2] Virginia Commonwealth Univ, Dept Phys, Richmond, VA 23284 USA
关键词
D O I
10.1021/ja0293406
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Using ultraviolet photoelectron spectroscopy, we provide direct experimental evidence that di-oxygen species are stable on anionic gold dimer and tetramer clusters at room temperature. The stabilization of molecular oxygen is crucial for the high activities of the low-temperature reactions on gold catalysts. Copyright © 2003 American Chemical Society.
引用
收藏
页码:2848 / 2849
页数:2
相关论文
共 24 条
  • [1] FTIR study of CO oxidation on Au/TiO2 at 90 K and room temperature.: An insight into the nature of the reaction centers
    Boccuzzi, F
    Chiorino, A
    [J]. JOURNAL OF PHYSICAL CHEMISTRY B, 2000, 104 (23): : 5414 - 5416
  • [2] FTIR study of the electronic effects of CO adsorbed on gold nanoparticles supported on titania
    Boccuzzi, F
    Chiorino, A
    Manzoli, M
    [J]. SURFACE SCIENCE, 2000, 454 (01) : 942 - 946
  • [3] Oxygen adsorption on well-defined gold particles on TiO2(110)
    Bondzie, VA
    Parker, SC
    Campbell, CT
    [J]. JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A-VACUUM SURFACES AND FILMS, 1999, 17 (04): : 1717 - 1720
  • [4] NEW EXPERIMENTAL SETUP FOR PHOTOELECTRON-SPECTROSCOPY ON CLUSTER ANIONS
    CHA, CY
    GANTEFOR, G
    EBERHARDT, W
    [J]. REVIEW OF SCIENTIFIC INSTRUMENTS, 1992, 63 (12) : 5661 - 5666
  • [5] Engel T., 1979, ADV CATALYSIS VOLUME, V28, P1, DOI DOI 10.1016/S0360-0564(08)60133-9
  • [6] PURE METAL AND METAL-DOPED RARE-GAS CLUSTERS GROWN IN A PULSED-ARC CLUSTER ION-SOURCE
    GANTEFOR, G
    SIEKMANN, HR
    LUTZ, HO
    MEIWESBROER, KH
    [J]. CHEMICAL PHYSICS LETTERS, 1990, 165 (04) : 293 - 296
  • [7] Comparative study of Au/TiO2 and Au/ZrO2 catalysts for low-temperature CO oxidation
    Grunwaldt, JD
    Maciejewski, M
    Becker, OS
    Fabrizioli, P
    Baiker, A
    [J]. JOURNAL OF CATALYSIS, 1999, 186 (02) : 458 - 469
  • [8] Coadsorption of CO and O2 on small free gold cluster anions at cryogenic temperatures:: Model complexes for catalytic CO oxidation
    Hagen, J
    Socaciu, LD
    Elijazyfer, M
    Heiz, U
    Bernhardt, TM
    Wöste, L
    [J]. PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2002, 4 (10) : 1707 - 1709
  • [9] Gas-phase catalytic oxidation of CO by Au2-
    Häkkinen, H
    Landman, U
    [J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2001, 123 (39) : 9704 - 9705
  • [10] A COMPARISON OF PHOTOELECTRON-SPECTROSCOPY AND 2-PHOTON IONIZATION SPECTROSCOPY - EXCITED-STATES OF AU-2, AU-3, AND AU-4
    HANDSCHUH, H
    GANTEFOR, G
    BECHTHOLD, PS
    EBERHARDT, W
    [J]. JOURNAL OF CHEMICAL PHYSICS, 1994, 100 (10) : 7093 - 7100