Catalytic hydrolysis of chlorofluorocarbon (CFC-12) over WO3/ZrO2

被引：14

作者：

Hua, WM ^{[1
]}

Zhang, F ^{[1
]}

Ma, Z ^{[1
]}

Tang, Y ^{[1
]}

Gao, Z ^{[1
]}

机构：

[1] Fudan Univ, Dept Chem, Shanghai 200433, Peoples R China

来源：

CATALYSIS LETTERS | 2000年 / 65卷 / 1-3期

关键词：

freon decomposition; CFC-12; WO3/ZrO2; acid catalyst;

D O I：

10.1023/A:1019029624351

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 catalytic decomposition of CFC-12 (CCl2F2) in the presence of water vapor was investigated over a series of solid acids WO3/ZrO2. Compared with tungstic acid, ammonium metatungstate is a better source of tungsten oxide for the preparation of WO3/ZrO2 catalysts. CFC-12 decomposition activities of WO3/ZrO2 catalysts are in good agreement with their acidities. Enhancing the acidities of catalysts is favorable to increase their CFC-12 decomposition activities. WO3/ZrO2 catalysts calcined at higher temperature exhibit good catalytic activity and stability for the hydrolysis of CFC-12, and show better structural stability during the reaction.

引用

页码：85 / 89

页数：5

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