KFU. Card publication. Electronic interaction between Cr3+ ions in chromia-alumina catalysts for light alkane dehydrogenation

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FEDERAL UNIVERSITY

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ELECTRONIC INTERACTION BETWEEN CR3+ IONS IN CHROMIA-ALUMINA CATALYSTS FOR LIGHT ALKANE DEHYDROGENATION

Form of presentation

Articles in international journals and collections

Year of publication

2022

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Authors, employees of KFU

Bekmukhamedov Giyaz Eduardovich, author

Bukharov Mikhail Sergeevich, author

Egorova Svetlana Robertovna, author

Lamberov Aleksandr Adolfovich, author

Tuktarov Rustem Ramilovich, author

Yakhvarov Dmitriy Grigorevich, author

Other authors

Morozov Vladimir Ivanovich, author

Bibliographic description in the original language

Electronic interaction between Cr3+ ions in chromia-alumina catalysts for light alkane dehydrogenation / G.E. Bekmukhamedov, V.I. Morozov, R.R. Tuktarov, M.S. Bukharov, S.R. Egorova, A.A. Lamberov, D.G. Yakhvarov // Journal of Physics and Chemistry of Solids – 2022 – 167 – 110778. https://doi.org/10.1016/j.jpcs.2022.110778

Annotation

In this work chromia-alumina catalysts have been studied by the electron paramagnetic resonance (EPR) spectroscopy in the temperature range -120–200 ◦C. It was observed, that the activity of the catalysts in the dehydrogenation of n-butane and i-butane correlates with the amount of strongly interacting Cr3+ ions of the amorphous chromia phase. A disproportionate increase in the antiferromagnetic coupling energy ΔE between Cr3+ ions was shown in the concentration range 4.7–9.8%wt.Cr (from 210 to 420 cm− 1) and 9.8–13.3%wt.Cr (from 420 to 450 cm− 1). It was established, that an increase in the exchange interaction between Cr3+ ions is more favourable for the dehydrogenation of i-butane as compared to n-butane.

Keywords

Butane dehydrogenation, chromia-alumina catalyst, chromia, exchange interaction

The name of the journal

Journal of Physics and Chemistry of Solids

URL

https://www.sciencedirect.com/science/article/pii/S0022369722002062?via%3Dihub

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

https://repository.kpfu.ru/eng/?p_id=266672&p_lang=2

Full metadata record

Field DC	Value	Language
dc.contributor.author	Bekmukhamedov Giyaz Eduardovich	ru_RU
dc.contributor.author	Bukharov Mikhail Sergeevich	ru_RU
dc.contributor.author	Egorova Svetlana Robertovna	ru_RU
dc.contributor.author	Lamberov Aleksandr Adolfovich	ru_RU
dc.contributor.author	Tuktarov Rustem Ramilovich	ru_RU
dc.contributor.author	Yakhvarov Dmitriy Grigorevich	ru_RU
dc.contributor.author	Morozov Vladimir Ivanovich	ru_RU
dc.date.accessioned	2022-01-01T00:00:00Z	ru_RU
dc.date.available	2022-01-01T00:00:00Z	ru_RU
dc.date.issued	2022	ru_RU
dc.identifier.citation	Electronic interaction between Cr3+ ions in chromia-alumina catalysts for light alkane dehydrogenation / G.E. Bekmukhamedov, V.I. Morozov, R.R. Tuktarov, M.S. Bukharov, S.R. Egorova, A.A. Lamberov, D.G. Yakhvarov // Journal of Physics and Chemistry of Solids – 2022 – 167 – 110778. https://doi.org/10.1016/j.jpcs.2022.110778	ru_RU
dc.identifier.uri	https://repository.kpfu.ru/eng/?p_id=266672&p_lang=2	ru_RU
dc.description.abstract	Journal of Physics and Chemistry of Solids	ru_RU
dc.description.abstract	In this work chromia-alumina catalysts have been studied by the electron paramagnetic resonance (EPR) spectroscopy in the temperature range -120–200 ◦C. It was observed, that the activity of the catalysts in the dehydrogenation of n-butane and i-butane correlates with the amount of strongly interacting Cr3+ ions of the amorphous chromia phase. A disproportionate increase in the antiferromagnetic coupling energy ΔE between Cr3+ ions was shown in the concentration range 4.7–9.8%wt.Cr (from 210 to 420 cm− 1) and 9.8–13.3%wt.Cr (from 420 to 450 cm− 1). It was established, that an increase in the exchange interaction between Cr3+ ions is more favourable for the dehydrogenation of i-butane as compared to n-butane.	ru_RU
dc.language.iso	ru	ru_RU
dc.subject	Butane dehydrogenation	ru_RU
dc.subject	chromia-alumina catalyst	ru_RU
dc.subject	chromia	ru_RU
dc.subject	exchange interaction	ru_RU
dc.title	Electronic interaction between Cr3+ ions in chromia-alumina catalysts for light alkane dehydrogenation	ru_RU
dc.type	Articles in international journals and collections	ru_RU