S 89 Structure and Catalytic Properties of a Cu2+-Containing Hydrogel of Zirconium Dioxide [Текст] / E. G. Kovaleva, L. S. Molochnikov, V. G. Kharchuk, O. V. Kuznetsova, A. B. Shishmakov, M. Yu. Yanchenko, L. Yu. Buldakova, I. N. Zhdanov, Yu. V. Mikushina, L. A. Petrov // Kinetics and Catalysis (Translation of Kinetika i Kataliz). - 2004. - Vol. 45, № 5. - С. 752-758. - Библиогр. : с. 758 (17 назв.) Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): КАТАЛИТИЧЕСКИЕ СВОЙСТВА -- МЕДЬ ДВУХВАЛЕНТНАЯ -- ДИОКСИД ЦИРКОНИЯ Аннотация: The distribution of Cu2+ ions in ZrO2 and sulfated ZrO2 hydrogel phases was studied by EPR spectroscopy and voltammetry. The formation of the following three types of copper structures was observed mononuclear Cu2+ complexes (A), magnetic associates (B), and Cu2+ compounds (C) that gave no EPR signals under the conditions used in the spectroscopic measurements. The specific catalytic activity of various Cu2+ compounds in the liquid-phase reaction of 2,3,5-trimethyl-1,4-hydroquinone oxidation was determined. The copper complexes C were found to exhibit the highest catalytic activity Полный текст |