Surface characterization of titania-silica composite oxides prepared by rapid hydrolysis

被引：5
作者：
Kanai, H [1 ]
Shono, M
Imamura, S
Kobayashi, H
机构：
[1] Kyoto Prefectural Univ, Dept Environm Informat, Sakyo Ku, Kyoto 606, Japan
[2] Kyoto Inst Technol, Dept Chem, Kyoto 606, Japan
[3] Kurashiki Univ Sci & Arts, Coll Sci & Ind Technol, Kurashiki, Okayama 712, Japan
来源：
JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL | 1998年 / 130卷 / 1-2期
关键词：
titania-silica; ESR; superoxide radical; sol-gel;
D O I：
10.1016/S1381-1169(97)00211-2
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 surface structures of TiO2-SiO2 composite oxides prepared by rapid hydrolysis were characterized by an ESR technique, The g(zz) value of O-2(-) adsorbed on titanium oxides gave a good indication for discriminating between tetrahedral and octahedral Ti sites. The tetrahedral Ti sites which predominates on the surface of low-loaded TiO2-SiO2 is closely related to the selectivity in the epoxidation of 1-octene with tert-butyl hydroperoxide catalyzed by TiO2-SiO2 composite oxides. (C) 1998 Elsevier Science B.V.
引用
收藏
页码：187 / 193
页数：7
相关论文
共 27 条
  • [1] ELECTRON-SPIN-RESONANCE STUDIES OF ACTIVE SURFACE TITANIUM IONS ON ANCHORED TI-OXIDE CATALYSTS
    ANPO, M
    SHIMA, T
    FUJII, T
    SUZUKI, S
    CHE, M
    [J]. CHEMISTRY LETTERS, 1987, (10) : 1997 - 2000
  • [2] STRUCTURE OF ONE-ATOMIC-LAYER TITANIUM-OXIDE ON SILICON-OXIDE AND ITS PALLADIUM-MEDIATED RESTRUCTURING
    ASAKURA, K
    INUKAI, J
    IWASAWA, Y
    [J]. JOURNAL OF PHYSICAL CHEMISTRY, 1992, 96 (02) : 829 - 834
  • [3] CHARACTERIZATION AND REACTIVITY OF MONONUCLEAR OXYGEN SPECIES ON OXIDE SURFACES
    CHE, M
    TENCH, AJ
    [J]. ADVANCES IN CATALYSIS, 1982, 31 : 77 - 133
  • [4] CHARACTERIZATION AND REACTIVITY OF MOLECULAR-OXYGEN SPECIES ON OXIDE SURFACES
    CHE, M
    TENCH, AJ
    [J]. ADVANCES IN CATALYSIS, 1983, 32 : 1 - 148
  • [5] THE ROLE OF THE O-17 ISOTOPE IN THE CHARACTERIZATION BY ELECTRON-PARAMAGNETIC-RES OF ADSORBED OXYGEN SPECIES ON OXIDE SURFACES
    CHE, M
    GIAMELLO, E
    TENCH, AJ
    [J]. COLLOIDS AND SURFACES, 1985, 13 (2-3): : 231 - 248
  • [6] SYNTHESIS OF PROPYLENE-OXIDE FROM PROPYLENE AND HYDROGEN-PEROXIDE CATALYZED BY TITANIUM SILICALITE
    CLERICI, MG
    BELLUSSI, G
    ROMANO, U
    [J]. JOURNAL OF CATALYSIS, 1991, 129 (01) : 159 - 167
  • [7] Davis M. E., 1993, ACS S SERIES, V517
  • [8] DINES TJ, 1992, CATALYSIS SURFACE CH
  • [9] EFFECT OF TETRAHEDRAL TI IN TITANIA-SILICA MIXED OXIDES ON EPOXIDATION ACTIVITY AND LEWIS ACIDITY
    IMAMURA, S
    NAKAI, T
    KANAI, H
    ITO, T
    [J]. JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS, 1995, 91 (08): : 1261 - 1266
  • [10] STATE OF TITANIUM IN TI-CONTAINING SILICA AND SILICALITE CATALYSTS IN RELATION TO THEIR OXIDATION ACTIVITY
    ITO, T
    KANAI, H
    NAKAI, T
    IMAMURA, S
    [J]. REACTION KINETICS AND CATALYSIS LETTERS, 1994, 52 (02): : 421 - 428
123