PREPARATION AND CHARACTERIZATION BY ELECTROPHORETIC MIGRATION OF TIO2-AL2O3 CATALYTIC SUPPORTS

被引：14

作者：

LLIAMBAS, FJG

BOUYSSIERES, L

AGUDO, AL

机构：

[1] CSIC, INST CATALISIS & PETROLEOQUIM, SERRANO 119, E-28006 MADRID, SPAIN

[2] UNIV SANTIAGO CHILE, FAC CIENCIA, DEPT QUIM, SANTIAGO, CHILE

来源：

APPLIED CATALYSIS | 1990年 / 65卷 / 01期

关键词：

BET; catalyst characterization (AAS; catalyst preparation (vapour deposition; electrophoretic migration; isoelectric point; titania-alumina; wet impregnation); zeta potential);

D O I：

10.1016/S0166-9834(00)81587-0

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 dispersion of TiO2 on γ-Al2O3 in two series of TiO2-Al2O3 binary oxides prepared by vapour deposition and liquid-phase impregnation of TiCl4 was studied using electrophoretic migration measurements of the isoelectric point. Vapour-deposited titania was found to be highly dispersed, forming monolayers on the alumina surface at loadings below 7 wt.-% titanium; formation of TiO2 multilayers occurred at titanium loadings greater than 7 wt.-%. Liquid-phase impregnation produced lower surface coverage of TiO2 multilayers. © 1990.

引用

页码：45 / 52

页数：8

共 14 条

[1] THERMALLY STABLE SMSI SUPPORTS - IRIDIUM SUPPORTED ON TIO2-AL2O3 AND ON CE-STABILIZED ANATASE [J].