Реферат: By means of electron microscopy, infrared spectroscopy of adsorbed CO, XPS, and ESR the state of the copper oxide component of the Cusingle bondAlsingle bondO system (CuO/γ-Al2O3 and bulk CuAl2O4 catalysts) has been investigated. Several types of coppersingle bondAlsingle bondoxygen entities were detected on the catalyst surfaces: isolated ions, weak magnetic associates, two- and three-dimensional clusters, defect CuO phase. The dependence of their distribution on composition, preparation, and pretreatment conditions and their reducibility by carbon monoxide have been analyzed. The enthalpy of oxygen adsorption on copper atoms in various structures has been calculated by a semiempirical, interacting-bond method. The most reactive species are three-dimensional clusters reducing to Cu0 by CO even at 163 K. Prolonged treatment in reaction media (CH3OH, CH2O, O2 at 673–873 K) annealed extended defects in CuO particles and destroyed the clusters, forming perfect CuO particles and bulk aluminate.

Библиографическая ссылка: Tikhov S.F. , Sadykov V.A. , Kryukova G.N. , Paukshtis E.A. , Popovskii V.V. , Starostina T.G. , Kharlamov G.V. , Anufrienko V.F. , Poluboyarov V.A. , Razdobarov V.A. , Bulgakov N.N. , Kalinkin A.V.
Microstructural and Spectroscopic Investigations of the Supported Copper-Alumina Oxide System: Nature of Aging in Oxidizing Reaction Media
Journal of Catalysis. 1992. V.134. N2. P.506-524. DOI: 10.1016/0021-9517(92)90338-I WOS Scopus РИНЦ CAPlusCA OpenAlex

Даты:

Поступила в редакцию:	4 июн. 1990 г.
Принята к публикации:	2 апр. 1991 г.
Опубликована в печати:	1 апр. 1992 г.
Опубликована online:	7 июн. 2004 г.

Идентификаторы БД:

Web of science:	WOS:A1992HK08500010
Scopus:	2-s2.0-0001248013
РИНЦ:	30889414
Chemical Abstracts:	1992:201858
Chemical Abstracts (print):	116:201858
OpenAlex:	W2006160173

Цитирование в БД:

БД	Цитирований
Web of science	67
Scopus	64
РИНЦ	70
OpenAlex	60

Альметрики: