Incorporation of Boron into the AlPO-11 Framework According to 11B and 27Al Solid-State NMR Spectroscopy and First-Principles Calculations Научная публикация
| Журнал |
Applied Magnetic Resonance
ISSN: 0937-9347 , E-ISSN: 1613-7507 |
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| Вых. Данные | Год: 2023, Том: 54, Страницы: 957–969 Страниц : 13 DOI: 10.1007/s00723-023-01581-4 | ||||
| Ключевые слова | Catalysts; Hydrothermal synthesis; Nuclear magnetic resonance spectroscopy; Quantum chemistry; Quantum theory; Zeolites | ||||
| Авторы |
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| Организации |
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Информация о финансировании (1)
| 1 | Российский научный фонд | 23-13-00151 |
Реферат:
Various aluminophosphates (AlPO-n) are a class of zeolite-like porous compounds built from alternating AlO4 and PO4 tetrahedra that demonstrate promising results as catalysts and catalyst supports. Their acid–base properties can be varied by substitution of different Al and P sites with different heteroatoms among which boron is of great interest. However, the ability to incorporate boron into the AlPO frameworks seems to be hindered since only very limited data are available on successful synthesis of BAPO (boron-substituted AlPO) materials. Here, we report the application of solid-state 27Al, 11B NMR techniques together with quantum chemical calculations for characterization of BAPO-11 obtained by hydrothermal synthesis. The coordination geometry of the B atoms in the framework is exclusively tetrahedral. However, the fraction of B atoms incorporated in the framework was very low and did not correspond to the B content in the initial composition. Extra-framework trigonal boron was also shown to be present in the sample. DFT calculations allowed us to suggest that boron replaced a small part of the Al1 site of the dehydrated AlPO-11 framework.
Библиографическая ссылка:
Yakovlev I.V.
, Toktarev A.V.
, Shubin A.A.
, Papulovskiy E.S.
, Cherepanova N.E.
, Lapina O.B.
Incorporation of Boron into the AlPO-11 Framework According to 11B and 27Al Solid-State NMR Spectroscopy and First-Principles Calculations
Applied Magnetic Resonance. 2023. V.54. P.957–969. DOI: 10.1007/s00723-023-01581-4 WOS Scopus РИНЦ CAPlus OpenAlex
Incorporation of Boron into the AlPO-11 Framework According to 11B and 27Al Solid-State NMR Spectroscopy and First-Principles Calculations
Applied Magnetic Resonance. 2023. V.54. P.957–969. DOI: 10.1007/s00723-023-01581-4 WOS Scopus РИНЦ CAPlus OpenAlex
Даты:
| Поступила в редакцию: | 7 июн. 2023 г. |
| Принята к публикации: | 22 июл. 2023 г. |
| Опубликована online: | 1 авг. 2023 г. |
| Опубликована в печати: | 1 окт. 2023 г. |
Идентификаторы БД:
| Web of science: | WOS:001040168900001 |
| Scopus: | 2-s2.0-85166180830 |
| РИНЦ: | 54919903 |
| Chemical Abstracts: | 2023:1585414 |
| OpenAlex: | W4385460120 |