Реферат: An IR spectral study showed the existence of reversibly and irreversibly adsorbed forms of SO2 on oxidized surfaces of Sn-Mo oxide catalysts. The reversibly adsorbed species has IR bands at 1140 and 1340 cm-1 which vanish during sample evacuation at room temperature Most likely, this form is stabilized on the O2- of Mo-containing surface compounds At >373 K, SO2 adsorbs irreversibly as sulfite-sulfate species characterized by bands at 1080 and 1100-1140 cm-1 (stabilized by surface Sn4-). The preadsorption of H2O has little effect on SO2 adsorption at low temperatures, but increasing temperature to 573 K accelerators formation of surface sulfates. Formation of sulfates leads to a decrease in Lewis acid and to an increase in Broensted acid centers on the catalyst surface.

Библиографическая ссылка: Касумов Ф.Б. , Давыдов А.А. , Керимов И.Я.
Реакция Клауса. III. Изучение взаимодействия SO2 с поверхностью Sn-Mo оксидного катализатора методом ИК-спектроскопии
Кинетика и катализ. 1991. Т.32. №6. С.1425-1429. РИНЦ CAPlusCAРЖ ВИНИТИ

Переводная версия: Kasumov F.B. , Davydov A.A. , Kerimov I.Y.
The Claus Reaction. 3. IR Spectroscopic Study of the Reaction of SO2 with the Surface of an Sn-Mo Oxide Catalyst
Kinetics and Catalysis. 1992. V.32. N6. P.1273-1277. WOS РИНЦ

Даты:

Поступила в редакцию:	19 апр. 1990 г.
Опубликована в печати:	1 нояб. 1991 г.

Идентификаторы БД:

РИНЦ:	21964385
Chemical Abstracts:	1992:92303
Chemical Abstracts (print):	116:92303
РЖ ВИНИТИ:	92.9Б4218

Идентификаторы БД переводной версии:

Web of science:	WOS:A1991JB14200005
РИНЦ:	21753900