ISSN:
1572-879X
Keywords:
freon decomposition
;
CFC-12
;
WO3/ZrO2
;
acid catalyst
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
Notes:
Abstract 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.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1023/A:1019029624351
Permalink
