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Adsorption Properties of Oxidized Gallium-Modified Zeolite ZSM-5 from Diffuse-Reflectance IR-Spectroscopic and Quantum-Chemical Data: II. Interaction with Carbon Monoxide and Water Научная публикация

Журнал Kinetics and Catalysis
ISSN: 0023-1584 , E-ISSN: 1608-3210
Вых. Данные Год: 2008, Том: 49, Номер: 1, Страницы: 149-155 Страниц : 7 DOI: 10.1134/S0023158408010199
Ключевые слова Zeolite; Gallium; Gallium Oxide; Cationic Position; Gallium Atom
Авторы Subbotina I.R. 1 , Sokolova N.A. 1 , Kuzʹmin I.V. 1 , Shubin A.A. 2 , Zhidomirov G.M. 1 , Kazanskii V.B. 1
Организации
1 Zelinskii Institute of Organic Chemistry, Russian Academy of Sciences, Moscow, 119991 Russia
2 Boreskov Institute of Catalysis, Siberian Branch, Russian Academy of Sciences, Novosibirsk, 630090 Russia

Информация о финансировании (3)

1 Российский фонд фундаментальных исследований 05-03-33103
2 Российский фонд фундаментальных исследований 07-03-00299
3 Совет по грантам Президента Российской Федерации НШ-5746.2006.3

Реферат: Diffuse-reflectance IR spectroscopy was used to study the adsorption and subsequent high-temperature transformations of water and carbon monoxide molecules on the oxidation-treated gallium-modified zeolite Ga/HZSM-5. The results were correlated with the corresponding quantum-chemical calculation data. Usually, it is thought that the oxo ions [Ga=O]+ are formed in the oxidation of Ga/HZSM-5. Based on the experimental and calculated data, the possible reactions of the gallium oxo ions with the above molecules are considered. The oxo ions were found highly reactive, and it is likely that polynuclear gallium oxide nanoclusters were formed in the oxidation of the gallium-substituted zeolite Ga/HZSM-5. The Ga+ ions, which appeared in the course of Ga/HZSM-5 reduction, were partially oxidized by water at 573 K; in turn, this could initiate the formation of polynuclear nanoclusters. It was found that ∼25% of the Ga+ ions were oxidized in the interaction with water to liberate molecular hydrogen. The thermal reduction of a nitrous oxide-preoxidized Ga/HZSM-5 sample with carbon monoxide was studied, and a conclusion on dissimilar states of oxygen bound to gallium was drawn.
Библиографическая ссылка: Subbotina I.R. , Sokolova N.A. , Kuzʹmin I.V. , Shubin A.A. , Zhidomirov G.M. , Kazanskii V.B.
Adsorption Properties of Oxidized Gallium-Modified Zeolite ZSM-5 from Diffuse-Reflectance IR-Spectroscopic and Quantum-Chemical Data: II. Interaction with Carbon Monoxide and Water
Kinetics and Catalysis. 2008. V.49. N1. P.149-155. DOI: 10.1134/S0023158408010199 WOS Scopus РИНЦ CAPlusCA OpenAlex
Оригинальная: Субботина И.Р. , Соколова Н.А. , Кузьмин И.В. , Шубин А.А. , Жидомиров Г.М. , Казанский В.Б.
Адсорбционные свойства модифицированного галлием цеолита ZSM-5 после окислительной обработки по данным ИК-спектроскопии диффузного отражения и квантово-химических расчетов II. Взаимодействие с CO и водой
Кинетика и катализ. 2008. Т.49. №1. С.157-163. РИНЦ
Даты:
Поступила в редакцию: 7 июн. 2006 г.
Принята к публикации: 17 июл. 2007 г.
Опубликована в печати: 1 янв. 2008 г.
Опубликована online: 19 янв. 2011 г.
Идентификаторы БД:
Web of science: WOS:000253546400019
Scopus: 2-s2.0-41049114410
РИНЦ: 13573285
Chemical Abstracts: 2008:342630
Chemical Abstracts (print): 150:451758
OpenAlex: W2020784395
Цитирование в БД:
БД Цитирований
Web of science 3
Scopus 3
РИНЦ 3
OpenAlex 3
Альметрики: