Genesis of a highly active cerium oxide-supported gold catalyst for CO oxidation

被引:42
作者
Aguilar-Guerrero, Veronica [1 ]
Gates, Bruce C. [1 ]
机构
[1] Univ Calif Davis, Dept Chem Engn & Mat Sci, Davis, CA USA
关键词
D O I
10.1039/b705562e
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
X-Ray absorption spectra show that a CeO2-supported CO oxidation catalyst prepared from Au-III(CH3)(2)(C5H7O2) initially incorporated Au-III complexes that were catalytically active at 353 K; during operation in a flow reactor, the gold aggregated into clusters and the catalytic activity increased.
引用
收藏
页码:3210 / 3212
页数:3
相关论文
共 31 条
  • [1] The influence of the preparation methods on the catalytic activity of platinum and gold supported on TiO2 for CO oxidation
    Bamwenda, GR
    Tsubota, S
    Nakamura, T
    Haruta, M
    [J]. CATALYSIS LETTERS, 1997, 44 (1-2) : 83 - 87
  • [2] Catalysis by gold
    Bond, GC
    Thompson, DT
    [J]. CATALYSIS REVIEWS-SCIENCE AND ENGINEERING, 1999, 41 (3-4): : 319 - 388
  • [3] Supported gold catalyzes the homocoupling of phenylboronic acid with high conversion and selectivity
    Carrettin, S
    Guzman, J
    Corma, A
    [J]. ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2005, 44 (15) : 2242 - 2245
  • [4] Nanocrystalline CeO2 increases the activity of an for CO oxidation by two orders of magnitude
    Carrettin, S
    Concepción, P
    Corma, A
    Nieto, JML
    Puntes, VF
    [J]. ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2004, 43 (19) : 2538 - 2540
  • [5] Activation of Au/γ-Al2O3 catalysts for CO oxidation:: Characterization by X-ray absorption near edge structure and temperature programmed reduction
    Costello, CK
    Guzman, J
    Yang, JH
    Wang, YM
    Kung, MC
    Gates, BC
    Kung, HH
    [J]. JOURNAL OF PHYSICAL CHEMISTRY B, 2004, 108 (33) : 12529 - 12536
  • [6] Nature of the active site for CO oxidation on highly active Au/γ-Al2O3
    Costello, CK
    Kung, MC
    Oh, HS
    Wang, Y
    Kung, HH
    [J]. APPLIED CATALYSIS A-GENERAL, 2002, 232 (1-2) : 159 - 168
  • [7] Mononuclear AuIII and AuI complexes bonded to zeolite NaY:: Catalysts for CO oxidation at 298 K
    Fierro-Gonzalez, JC
    Gates, BC
    [J]. JOURNAL OF PHYSICAL CHEMISTRY B, 2004, 108 (44) : 16999 - 17002
  • [8] A highly active catalyst for CO oxidation at 298 K:: mononuclear AuIII complexes anchored to La2O3 nanoparticles
    Fierro-Gonzalez, JC
    Bhirud, VA
    Gates, BC
    [J]. CHEMICAL COMMUNICATIONS, 2005, (42) : 5275 - 5277
  • [9] Oxide- and zeolite-supported molecular metal complexes and clusters: Physical characterization and determination of structure, bonding, and metal oxidation state
    Fierro-Gonzalez, Juan C.
    Kuba, Stefan
    Hao, Yalin
    Gates, Bruce C.
    [J]. JOURNAL OF PHYSICAL CHEMISTRY B, 2006, 110 (27) : 13326 - 13351
  • [10] Spectroscopic evidence for the supply of reactive oxygen during CO oxidation catalyzed by gold supported on nanocrystalline CeO2
    Guzman, J
    Carrettin, S
    Corma, A
    [J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2005, 127 (10) : 3286 - 3287