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Quantitative Analysis of Lewis Acid Centers of γ-Alumina by Using EPR of the Adsorbed Anthraquinone as a Probe Molecule: Comparison with the Pyridine, Carbon Monoxide IR, and TPD of Ammonia Научная публикация

Журнал The Journal of Physical Chemistry C
ISSN: 1932-7447 , E-ISSN: 1932-7455
Вых. Данные Год: 2015, Том: 119, Номер: 49, Страницы: 27410-27415 Страниц : 6 DOI: 10.1021/acs.jpcc.5b09759
Авторы Gafurov Marat R. 1 , Mukhambetov Ildar N. 2 , Yavkin Boris V. 1 , Mamin Georgy V. 1 , Lamberov Alexander A. 2 , Orlinskii Sergei B. 1
Организации
1 Kazan Federal University, Institute of Physics, 420008 Kazan, Russia
2 Kazan Federal University, A. Butlerov Institute of Chemistry, 420008 Kazan, Russia
Реферат: Quantitative electron paramagnetic resonance (EPR) measurements were done on the alumina oxide surface by using 9,10-anthraquinone probe (AQ) with the AQ amount in the range of (0.5–20) wt %. The nature of three paramagnetic centers observed simultaneously is ascribed to the strong, medium, and weak Al Lewis acid sites on the basis of combined EPR study/infrared (IR) spectroscopy of the adsorbed CO and pyridine/temperature-programmed desorption (TPD) of ammonia. It is shown how the optimal concentration of AQ probe molecule for the exhaustive quantitative examination of alumina surface can be determined directly from EPR. A possibility to characterize the surface distribution of Lewis acid centers by AQ molecules is discussed.
Библиографическая ссылка: Gafurov M.R. , Mukhambetov I.N. , Yavkin B.V. , Mamin G.V. , Lamberov A.A. , Orlinskii S.B.
Quantitative Analysis of Lewis Acid Centers of γ-Alumina by Using EPR of the Adsorbed Anthraquinone as a Probe Molecule: Comparison with the Pyridine, Carbon Monoxide IR, and TPD of Ammonia
The Journal of Physical Chemistry C. 2015. V.119. N49. P.27410-27415. DOI: 10.1021/acs.jpcc.5b09759 WOS Scopus РИНЦ OpenAlex
Идентификаторы БД:
Web of science: WOS:000366339000027
Scopus: 2-s2.0-84949580106
РИНЦ: 26923505
OpenAlex: W2338760259
Цитирование в БД:
БД Цитирований
OpenAlex 45
Scopus 46
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