Effect of the Nature of Silica on the Catalytic Properties of Immobilized Alkylimidazolium Chloroferrate in the Oxidation of Heterocyclic CompoundsстатьяИсследовательская статья
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Дата последнего поиска статьи во внешних источниках: 15 апреля 2026 г.
Аннотация:The paper describes results of studying the composition, structure, and catalytic properties of heterogeneoushybrid composites composed of an imidazole ionic liquid and iron(III) chloride supported on silicasof various structures, namely, silica gel, synthetic opal, and mesoporous SiO2 synthesized by treatingsodium borosilicate glass. The composition and structure of the hybrid materials are determined by adsorptionmethods, X-ray fluorescence (XRF) analysis, scanning electron microscopy (SEM), and X-ray photoelectronspectroscopy (XPS). The catalytic properties of the materials in model oxidation catalysis reactionsare determined. The results show that composites based on silica gel and opal exhibit high activity in thehydrogen peroxide-assisted oxidation of sulfur- and nitrogen-containing compounds