Study of the acid site structure on the WO3/ZrO2 surface

被引：9
作者：
Brei, VV
Melezhyk, OV
Prudius, SV
Tel'biz, GM
Oranska, OI
机构：
[1] Natl Acad Sci Ukraine, Inst Sorpt & Endoecol Problems, UA-252143 Kiev, Ukraine
[2] Natl Acad Sci Ukraine, Pysarzhevsky Inst Phys Chem, UA-252143 Kiev, Ukraine
[3] Natl Acad Sci Ukraine, Inst Surface Chem, UA-252143 Kiev, Ukraine
来源：
ADSORPTION SCIENCE & TECHNOLOGY | 2005年 / 23卷 / 02期
关键词：
D O I：
10.1260/0263617054037754
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
The IR and UV-vis diffuse reflectance spectra of mesoporous WO3/ZrO2 are discussed and a scheme proposed for the acid site structure on the WO3/ZrO2 surface. The high Brbnsted acidity of WO3/ZrO2 (H-0 <= -11.38) can be explained by the formation of large zirconium polytungstate species such as [ Zr61/2+W66+O202-](-) H+ on the WO3/ZrO2 surface.
引用
收藏
页码：109 / 114
页数：6
相关论文
共 13 条
[1]   Structure and electronic properties of solid acids based on tungsten oxide nanostructures [J].
Barton, DG ;
Shtein, M ;
Wilson, RD ;
Soled, SL ;
Iglesia, E .
JOURNAL OF PHYSICAL CHEMISTRY B, 1999, 103 (04) :630-640
[2]   Crystallization behavior of tungstate on zirconia and its relationship to acidic properties .1. Effect of preparation parameters [J].
Boyse, RA ;
Ko, EI .
JOURNAL OF CATALYSIS, 1997, 171 (01) :191-207
[3]  
Brei VV, 2002, STUD SURF SCI CATAL, V143, P387
[4]  
Godovikov A. A., 1977, ORBITAL RADII PROPER
[5]  
HINO M, 1987, J CHEM SOC CHEM COMM, P1259
[6]  
HUHEEY JE, 1987, INORGANIC CHEM
[7]   Structure and properties of tungstated zirconia catalysts for alkane conversion [J].
Kuba, S ;
Lukinskas, P ;
Grasselli, RK ;
Gates, BC ;
Knözinger, H .
JOURNAL OF CATALYSIS, 2003, 216 (1-2) :353-361
[8]   Sol-gel polymer-template synthesis of mesoporous WO3/ZrO2 [J].
Melezhyk, OV ;
Prudius, SV ;
Brei, VV .
MICROPOROUS AND MESOPOROUS MATERIALS, 2001, 49 (1-3) :39-44
[9]  
PAUKSHTIS EA, 1983, USP KHIM+, V52, P426
[10]   Influence of the preparative method on the activity of highly acidic WOx/ZrO2 and the relative acid activity compared with zeolites [J].
Santiesteban, JG ;
Vartuli, JC ;
Han, S ;
Bastian, RD ;
Chang, CD .
JOURNAL OF CATALYSIS, 1997, 168 (02) :431-441
12