Influence of metal coating methods on the activity of bimetal-containing zeolite catalysts of Co, Pd-ZSM-5 in carbon monoxide oxidation

It has been established that catalytic activity in the CO oxidation of bimetal-containing zeolite Co,Pd-systems based on ZSM-5 and obtained via ion exchange and impregnation at different orders of the introduction of metal cations is higher than that of monometal-containing systems Co-ZSM-5 and Pd—Z...

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Bibliographic Details
Published inRussian Journal of Physical Chemistry A Vol. 85; no. 7; pp. 1135 - 1139
Main Authors Oleksenko, L. P., Lutsenko, L. V., Yatsimirskii, V. K.
Format Journal Article
LanguageEnglish
Published Dordrecht SP MAIK Nauka/Interperiodica 01.07.2011
Subjects
Chemical Kinetics and Catalysis
Chemistry
Chemistry and Materials Science
Physical Chemistry
catalytic activity in CO oxidation
zeolite Co
Pd-catalysts
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Summary:It has been established that catalytic activity in the CO oxidation of bimetal-containing zeolite Co,Pd-systems based on ZSM-5 and obtained via ion exchange and impregnation at different orders of the introduction of metal cations is higher than that of monometal-containing systems Co-ZSM-5 and Pd—ZSM-5. Through TPD of NH 3 , it was determined that coordination-unsaturated bicationic associates are formed in Co,Pd/ZSM-5 zeolites obtained by ion exchange. It was found that the activity of bimetal-containing systems depends on the relation of the active components.
ISSN:0036-0244
1531-863X
DOI:10.1134/S0036024411070235