Structure and characteristics of chitosan cobalt-containing hybrid systems, the catalysts of olefine oxidation

Abstract

Cobalt-containing hybrid organo-inorganic materials based on the chitosan-SiO2, chitosan-Al2O3, and chitosan-cellulose systems were obtained. The surface structure and processes that occur during the formation of metal-containing materials, the catalytic properties of which were studied in the oxidation reactions of alkene, were investigated by EPR spectroscopy using a stable pH-sensitive nitroxyl radical, 4-dimethylamino-2-ethyl-5,5-dimethyl-2-(pyridin-4-yl)-2,5-dihydro-1H-imidazole- 1-oxyl, as the adsorbed probe molecules. © 2011 Pleiades Publishing, Ltd.