KFU. Card publication. Quantitative Analysis of Lewis Acid Centers ofγ‑Alumina by Using EPR of the Adsorbed Anthraquinone as a Probe Molecule: Comparison with the Pyridine, Carbon Monoxide IR, and TPD of Ammonia.

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QUANTITATIVE ANALYSIS OF LEWIS ACID CENTERS OFγ‑ALUMINA BY USING EPR OF THE ADSORBED ANTHRAQUINONE AS A PROBE MOLECULE: COMPARISON WITH THE PYRIDINE, CARBON MONOXIDE IR, AND TPD OF AMMONIA.

Form of presentation

Articles in international journals and collections

Year of publication

2015

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Authors, employees of KFU

Gafurov Marat Revgerovich, author

Lamberov Aleksandr Adolfovich, author

Mamin Georgiy Vladimirovich, author

Mukhambetov Ildar Nikolaevich, author

Orlinskiy Sergey Borisovich, author

Yavkin Boris Vladimirovich, author

Bibliographic description in the original language

Marat R. Gafurov, Ildar N. Mukhambetov, Boris V. Yavkin, Georgy V. Mamin, Alexander A. Lamberov, Sergei B. Orlinskii. Quantitative Analysis of Lewis Acid Centers ofγ‑Alumina by Using EPR of the Adsorbed Anthraquinone as a Probe Molecule: Comparison with the Pyridine, Carbon Monoxide IR, and TPD of Ammonia. J. Phys. Chem. C 2015, 119 (49), 27410−27415

Annotation

Quantitative electron paramagnetic resonance (EPR) meas-urements 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.

Keywords

alumina, surface characterization, EPR, ESR

The name of the journal

Journal of Physical Chemistry C

URL

http://pubs.acs.org/doi/10.1021/acs.jpcc.5b09759

Please use this ID to quote from or refer to the card

https://repository.kpfu.ru/eng/?p_id=121264&p_lang=2

Full metadata record

Field DC	Value	Language
dc.contributor.author	Gafurov Marat Revgerovich	ru_RU
dc.contributor.author	Lamberov Aleksandr Adolfovich	ru_RU
dc.contributor.author	Mamin Georgiy Vladimirovich	ru_RU
dc.contributor.author	Mukhambetov Ildar Nikolaevich	ru_RU
dc.contributor.author	Orlinskiy Sergey Borisovich	ru_RU
dc.contributor.author	Yavkin Boris Vladimirovich	ru_RU
dc.date.accessioned	2015-01-01T00:00:00Z	ru_RU
dc.date.available	2015-01-01T00:00:00Z	ru_RU
dc.date.issued	2015	ru_RU
dc.identifier.citation	Marat R. Gafurov, Ildar N. Mukhambetov, Boris V. Yavkin, Georgy V. Mamin, Alexander A. Lamberov, Sergei B. Orlinskii. Quantitative Analysis of Lewis Acid Centers ofγ‑Alumina by Using EPR of the Adsorbed Anthraquinone as a Probe Molecule: Comparison with the Pyridine, Carbon Monoxide IR, and TPD of Ammonia. J. Phys. Chem. C 2015, 119 (49), 27410−27415	ru_RU
dc.identifier.uri	https://repository.kpfu.ru/eng/?p_id=121264&p_lang=2	ru_RU
dc.description.abstract	Journal of Physical Chemistry C	ru_RU
dc.description.abstract	Quantitative electron paramagnetic resonance (EPR) meas-urements 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.	ru_RU
dc.language.iso	ru	ru_RU
dc.subject	alumina	ru_RU
dc.subject	surface characterization	ru_RU
dc.subject	EPR	ru_RU
dc.subject	ESR	ru_RU
dc.title	Quantitative Analysis of Lewis Acid Centers ofγ‑Alumina by Using EPR of the Adsorbed Anthraquinone as a Probe Molecule: Comparison with the Pyridine, Carbon Monoxide IR, and TPD of Ammonia.	ru_RU
dc.type	Articles in international journals and collections	ru_RU