The Influence of Mechanochemical Activation on Coke Formation on Aluminum Oxide Научная публикация
Журнал |
Kinetics and Catalysis
ISSN: 0023-1584 , E-ISSN: 1608-3210 |
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Вых. Данные | Год: 1995, Том: 36, Номер: 5, Страницы: 698-700 Страниц : 3 | ||
Авторы |
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Организации |
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Реферат:
Processes occurring during mechanochemical activation (MA) of γ-Al2O3 are studied by physicochemical methods. As a result of MA, the surface concentration of coordinatively unsaturated aluminum ions falls. The concentration of strong Lewis acid sites decreases by two orders of magnitude, and that of weak Lewis centers falls several times, whereas the bulk concentration of octahedrally and tetrahedrally coordinated aluminum ions remains unchanged. MA of γ-Al2O3 is shown to suppress coke formation. The reason behind this effect is the decrease in the concentration of acceptor sites involved in the active sites responsible for coke formation at the surface of alumina The strongest acceptor sites vanish at the initial stages of MA. The contribution of these centers in the coke formation on alumina is insignificant, whereas the weaker acceptor sites that are more resistant to MA make an essential contribution.
Библиографическая ссылка:
Chesnokov V.V.
, Molchanov V.V.
, Paukshtis E.A.
, Konovalova T.A.
The Influence of Mechanochemical Activation on Coke Formation on Aluminum Oxide
Kinetics and Catalysis. 1995. V.36. N5. P.698-700. WOS РИНЦ
The Influence of Mechanochemical Activation on Coke Formation on Aluminum Oxide
Kinetics and Catalysis. 1995. V.36. N5. P.698-700. WOS РИНЦ
Оригинальная:
Чесноков В.В.
, Молчанов В.В.
, Паукштис Е.А.
, Коновалова Т.А.
Влияние механохимической активации на зауглероживание оксида алюминия
Кинетика и катализ. 1995. Т.36. №5. С.759-762. РИНЦ
Влияние механохимической активации на зауглероживание оксида алюминия
Кинетика и катализ. 1995. Т.36. №5. С.759-762. РИНЦ
Даты:
Поступила в редакцию: | 27 июн. 1994 г. |
Идентификаторы БД:
Web of science | WOS:A1995TE83400022 |
РИНЦ | 29284550 |
Chemical Abstracts | 1995:947664 |
Chemical Abstracts (print) | 123:345175 |