| Форма представления | Статьи в зарубежных журналах и сборниках |
| Год публикации | 2022 |
| Язык | английский |
|
Бекмухамедов Гияз Эдуардович, автор
Егорова Светлана Робертовна, автор
Ламберов Александр Адольфович, автор
Туктаров Рустем Рамилович, автор
Яхваров Дмитрий Григорьевич, автор
|
|
Иго Александр Владимирович, автор
Кожевин Александр Евгеньевич, автор
Морозов Владимир Иванович, автор
|
| Библиографическое описание на языке оригинала |
Spectroscopy analysis of the active component of chromia-alumina dehydrogenation catalysts / G. Bekmukhamedov, A. Igo, R. Tuktarov, V. Morozov, S. Egorova, A. Kozhevin, A. Lamberov and D. Yakhvarov // New Journal of Chemistry, 2022, 46, 4974-4978, DOI: 10.1039/D1NJ06117H |
| Аннотация |
The active component of chromia-alumina dehydrogenation catalysts has been studied by Raman and photoluminescence spectroscopy. The stress state at the Al2O3–Cr2O3 interface has been determined by photoluminescence spectroscopy. A model of the spatial distribution of the stresses in Cr2O3 crystals of the catalysts was developed on the basis of the Raman spectroscopy data. Two parameters characterizing this distribution have been determined: PM and α – maximum stress and the rate of the stress drop in Cr2O3 crystals, respectively. It was shown that decrease in the stress at the surface of the Cr2O3 crystals from 0.9 to 0.5 GPa is accompanied by decreasing of the catalytic activity in the dehydrogenation process – the conversion of n-butane to unsaturated derivatives decreases from 27.4% to 23.0%. |
| Ключевые слова |
catalyst, dehydrogenation, chromia, Raman spectroscopy |
| Название журнала |
NEW JOURNAL OF CHEMISTRY
|
| URL |
https://pubs.rsc.org/en/content/articlelanding/2022/nj/d1nj06117h/unauth |
| Пожалуйста, используйте этот идентификатор, чтобы цитировать или ссылаться на эту карточку |
https://repository.kpfu.ru/?p_id=263124 |
Полная запись метаданных  |
| Поле DC |
Значение |
Язык |
| dc.contributor.author |
Бекмухамедов Гияз Эдуардович |
ru_RU |
| dc.contributor.author |
Егорова Светлана Робертовна |
ru_RU |
| dc.contributor.author |
Ламберов Александр Адольфович |
ru_RU |
| dc.contributor.author |
Туктаров Рустем Рамилович |
ru_RU |
| dc.contributor.author |
Яхваров Дмитрий Григорьевич |
ru_RU |
| dc.contributor.author |
Иго Александр Владимирович |
ru_RU |
| dc.contributor.author |
Кожевин Александр Евгеньевич |
ru_RU |
| dc.contributor.author |
Морозов Владимир Иванович |
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 |
Spectroscopy analysis of the active component of chromia-alumina dehydrogenation catalysts / G. Bekmukhamedov, A. Igo, R. Tuktarov, V. Morozov, S. Egorova, A. Kozhevin, A. Lamberov and D. Yakhvarov // New Journal of Chemistry, 2022, 46, 4974-4978, DOI: 10.1039/D1NJ06117H |
ru_RU |
| dc.identifier.uri |
https://repository.kpfu.ru/?p_id=263124 |
ru_RU |
| dc.description.abstract |
NEW JOURNAL OF CHEMISTRY |
ru_RU |
| dc.description.abstract |
The active component of chromia-alumina dehydrogenation catalysts has been studied by Raman and photoluminescence spectroscopy. The stress state at the Al2O3–Cr2O3 interface has been determined by photoluminescence spectroscopy. A model of the spatial distribution of the stresses in Cr2O3 crystals of the catalysts was developed on the basis of the Raman spectroscopy data. Two parameters characterizing this distribution have been determined: PM and α – maximum stress and the rate of the stress drop in Cr2O3 crystals, respectively. It was shown that decrease in the stress at the surface of the Cr2O3 crystals from 0.9 to 0.5 GPa is accompanied by decreasing of the catalytic activity in the dehydrogenation process – the conversion of n-butane to unsaturated derivatives decreases from 27.4% to 23.0%. |
ru_RU |
| dc.language.iso |
ru |
ru_RU |
| dc.subject |
catalyst |
ru_RU |
| dc.subject |
dehydrogenation |
ru_RU |
| dc.subject |
chromia |
ru_RU |
| dc.subject |
Raman spectroscopy |
ru_RU |
| dc.title |
Spectroscopy analysis of the active component of chromia-alumina dehydrogenation catalysts |
ru_RU |
| dc.type |
Статьи в зарубежных журналах и сборниках |
ru_RU |
|
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