EFFECT OF TEMPERATURE OF HEAT-TREATMENT OF HYDRATED TIN DIOXIDE USED AS A SUPPORT FOR PALLADIUM CATALYST ON THE ACTIVITY OF THE LATTER IN OXIDATION OF CARBON-MONOXIDE

Citation
Tp. Chistova et al., EFFECT OF TEMPERATURE OF HEAT-TREATMENT OF HYDRATED TIN DIOXIDE USED AS A SUPPORT FOR PALLADIUM CATALYST ON THE ACTIVITY OF THE LATTER IN OXIDATION OF CARBON-MONOXIDE, Russian journal of applied chemistry, 66(10), 1993, pp. 1672-1674
Citations number
9
Categorie Soggetti
Chemistry Applied
ISSN journal
10704272
Volume
66
Issue
10
Year of publication
1993
Part
1
Pages
1672 - 1674
Database
ISI
SICI code
1070-4272(1993)66:10<1672:EOTOHO>2.0.ZU;2-9
Abstract
The effect of temperature of heat treatment of hydrated tin dioxide (H TD) used as a support for palladium catalyst on porous structure and t he catalutic activity in oxidation of carbon monoxide is studied. The most active catalysts based on HTD with an effective pore radii of 0.8 -1.0 nm are prepared by palladium coating of HTD pretreated at 150-deg rees-C. Heat treatment at temperatures higher than 300-degrees-C accom panied by decrease in the specific surface and increase in the effecti ve radii of the HTD pores, significantly lowers the activity of the ca talysts.