复合固体超强酸催化剂SO42-4-WO3-ZrO2的结构研究

被引：6

作者：

黄银燕

赵璧英

谢有畅

机构：

[1] 北京大学物理化学研究所!北京,北京大学物理化学研究所!北京,北京大学物理化学研究所!北京

来源：

物理化学学报 | 1995年 / 06期

关键词：

固体超强酸; SO42-4-WO3-ZrO2; 延迟晶化; ZrO2(t)稳定性;

D O I：

暂无

中图分类号：

O643 [化学动力学、催化作用];

学科分类号：

070304 ; 081704 ;

摘要：

Solid superacid catalyst SO4(2-)-WO3-ZrO2 was characterized by means of XRD,DTA-TG, and surface area measurement techniques. The dependence of the surface area, SO42- content of the catalyst on calcination temperature was measured. It was found that there is a synergy to a certain degree between SO42- and WO3 with respect to the delay of ZrO2 crystailization, the stabilization of the tetragonal ZrO2 and the enlargement of the surface area of the catalyst. The addition of WO3 is beneficial to the stabilization of SO42- and remarkably increases the stability of SO42- at high temperature.

引用

页码：547 / 552

页数：6