Studies on SO42- promoted mixed oxide superacids

被引：59

作者：

Miao, CX ^{[1
]}

Hua, WM ^{[1
]}

Chen, JM ^{[1
]}

Gao, Z ^{[1
]}

机构：

[1] FUDAN UNIV,DEPT CHEM,SHANGHAI 200433,PEOPLES R CHINA

来源：

CATALYSIS LETTERS | 1996年 / 37卷 / 3-4期

关键词：

solid superacids; sulfated binary and trinary oxides; butane isomerization; characterization;

D O I：

10.1007/BF00807752

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：

Sulfated binary and trinary oxide solid superacids were prepared and characterized. The incorporation of Cr, Fe, Mn and V into sulfated zirconia increases its superacidity and catalytic activity for n-butane isomerization at 35 degrees C significantly. The catalytic activity of sulfated oxides of Cr-Zr, Fe-Cr-Zr and Fe-V-Zr is 2-3 times greater than that of the well-known sulfated Fe-Mn-Zr oxide. A negative effect was observed in the cases of sulfated Mn-Zr, Sn-Zr, W-Zr and Mo-Zr oxides. The origin of the enhancement in superacidity and activity is discussed in the light of experimental results obtained by XRD, IR and chemical analysis.

引用

页码：187 / 191

页数：5

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