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7


Teoret. i eksperim. khimiya. 2006. Vol.42 No. 5. p. 300-305

Influence of Preparation Conditions of Iron Oxide Nanoparticles
on Their Catalytic Properties in the Reaction of CO Oxidation

 

G. R. Kosmambetova, P. E. Strizhak, K. S. Gavrilenko, V. I. Gritsenko


L. V. Pysarzhevsky Institute of Physical Chemistry, National Academy of Sciences of Ukraine
prosp. Nauky, 31, Kyiv 03028, Ukraine. E-mail: kosmambetova@yahoo.co.uk


Catalytic properties of systems prepared by mechanical mixing of iron oxides nanoparticles obtained in the process of carboxylates complexes thermolythis and alumina were studied in the reaction of CO oxi- dation. It was shown that the increase of iron oxide nanoparticle size leads to decrease of their catalytic activity. That was caused by the different structural and textural characteristics which depend from syn- thesis conditions.


Key word CO oxidation, nanoparticles, iron(III) oxides, carboxylate complexes, X-ray analysis.