ACIDIC AND BASIC SITES OF MAIN GROUP MIXED METAL-OXIDES

被引：78

作者：

NOLLER, H

LERCHER, JA

VINEK, H

机构：

[1] Technische Univ Wien, Vienna, Austria, Technische Univ Wien, Vienna, Austria

来源：

MATERIALS CHEMISTRY AND PHYSICS | 1988年 / 18卷 / 5-6期

关键词：

ACIDS - Inorganic - ALCOHOLS - Chemical Reactions - OXIDES - Surface Properties;

D O I：

10.1016/0254-0584(88)90023-5

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The variation of the nature and strength of acidic and basic sites in mixed oxides (consisting mainly of silica, alumina and magnesia) is described and related to the catalytic behavior. The surface species are considered to be either Lewis acid or Lewis basic sites. X-ray photoelectron and infrared spectroscopy have been used for the evaluation of site strength. The site strength found with mixed oxides was always in between the limits found for the components. Dehydration and dehydrogenation of alkanols and formation of acetone from diacetonealcohol are discussed as typical Lewis acid-base catalyzed reactions.

引用

页码：577 / 593

页数：17

共 53 条

[1] THE GENERATION OF BRONSTED AND LEWIS ACID SITES ON THE SURFACE OF SILICA BY ADDITION OF DOPANT CATIONS [J].