Structural evolution of WO3 nanoclusters on ZrO2

被引:13
作者
Angeles-Chavez, C [1 ]
Cortes-Jácome, MA [1 ]
Torres-Garcia, E [1 ]
Toledo-Antonio, JA [1 ]
机构
[1] Inst Mexicano Petr, Prog Ingn Mol, Mexico City 07730, DF, Mexico
关键词
D O I
10.1557/JMR.2006.0100
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Direct evidence of the transformation of WOx species in WO3 nanoclusters on WOx -ZrO2 system was achieved by high-resolution transmission electron microscopy (HRTEM) and Raman spectroscopy on samples obtained by a conventional precipitation method and annealed from 560 to 800 degrees C. WO3 Nanoclusters with 2-nm crystal size orthorhombic structure were identified on the ZrO2 surface after annealing at 800 degrees C.
引用
收藏
页码:807 / 810
页数:4
相关论文
共 10 条
  • [1] ARATA K, 1988, P 9 INT C CAT CALG 1, P1727
  • [2] Structure and electronic properties of solid acids based on tungsten oxide nanostructures
    Barton, DG
    Shtein, M
    Wilson, RD
    Soled, SL
    Iglesia, E
    [J]. JOURNAL OF PHYSICAL CHEMISTRY B, 1999, 103 (04): : 630 - 640
  • [3] Structural and catalytic characterization of solid acids based on zirconia modified by tungsten oxide
    Barton, DG
    Soled, SL
    Meitzner, GD
    Fuentes, GA
    Iglesia, E
    [J]. JOURNAL OF CATALYSIS, 1999, 181 (01) : 57 - 72
  • [4] Crystallization behavior of tungstate on zirconia and its relationship to acidic properties .1. Effect of preparation parameters
    Boyse, RA
    Ko, EI
    [J]. JOURNAL OF CATALYSIS, 1997, 171 (01) : 191 - 207
  • [5] Microstructural properties of the Al-Mgx/TiC composites obtained by infiltration techniques
    Contreras, A
    Albiter, A
    Pérez, R
    [J]. JOURNAL OF PHYSICS-CONDENSED MATTER, 2004, 16 (22) : S2241 - S2249
  • [6] Solid solutions of WO3 into zirconia in WO3-ZrO2 catalysts
    Cortés-Jácome, MA
    Toledo-Antonio, JA
    Armendáriz, H
    Hernández, I
    Bokhimi, X
    [J]. JOURNAL OF SOLID STATE CHEMISTRY, 2002, 164 (02) : 339 - 344
  • [7] [001] TILT GRAIN-BOUNDARIES IN YBA2CU3O7-X THIN-FILMS
    GAO, Y
    MERKLE, KL
    BAI, G
    CHANG, HLM
    LAM, DJ
    [J]. ULTRAMICROSCOPY, 1991, 37 (1-4) : 326 - 340
  • [8] Hydroisomerization-cracking of n-octane on Pt/WO42--ZrO2 and Pt/SO42--ZrO2 -: Effect of Pt load on catalyst performance
    Grau, JM
    Yori, JC
    Parera, JM
    [J]. APPLIED CATALYSIS A-GENERAL, 2001, 213 (02) : 247 - 257
  • [9] Structural transformation in nanosized zirconium oxide -: art. no. 155404
    Jouanne, M
    Morhange, JF
    Kanehisa, MA
    Haro-Poniatowski, E
    Fuentes, GA
    Torres, E
    Hernández-Tellez, E
    [J]. PHYSICAL REVIEW B, 2001, 64 (15):
  • [10] WOx/ZrO2 catalysts prepared by anionic exchange:: In situ Raman investigation from the precursor solutions to the calcined catalysts
    Loridant, S
    Feche, C
    Essayem, N
    Figueras, F
    [J]. JOURNAL OF PHYSICAL CHEMISTRY B, 2005, 109 (12) : 5631 - 5637