Rapid and Effective Way to Synthesize Highly Crystalline Nanosized SAPO-34 Particles Научная публикация
| Журнал |
Nanomaterials
, E-ISSN: 2079-4991 |
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| Вых. Данные | Год: 2022, Том: 12, Номер: 22, Номер статьи : 4086, Страниц : 14 DOI: 10.3390/nano12224086 | ||
| Ключевые слова | SAPO-34; dry gel conversion; steam-assisted crystallization; nanocrystals; coated adsorber | ||
| Авторы |
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| Организации |
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Информация о финансировании (1)
| 1 | Российский научный фонд | 21-79-10183 |
Реферат:
SAPO-34 nanocrystals with sizes of 50–150 nm were obtained via steam-assisted crystallization (SAC) for 5 h at 200 °C from two types of aluminum precursors—aluminum isopropoxide and boehmite. A reaction mixture composition with a small amount of organic template tetraehylammonium hydroxide (TEAOH) was used with the molar ratio TEAOH/Al2O3 = 1/1. The alumina precursor type and duration of the SAC (5 and 24 h) on the crystal size, texture, and acid properties were investigated. The SAPO-34 nanocrystals that we obtained possess a large micropore volume of 0.22–0.24 cm3/g and a specific surface area of 651–695 m2/g. When the crystallization was prolonged for up to 24 h, a SAPO-18 structure appeared, but the micropore and mesopore volumes changed insignificantly. Using boehmite as the aluminum precursor led to higher mesoporosity of the material but a little bit lower acidity when compared with the samples prepared from aluminum isopropoxide. In addition, the method proposed was used for preparing a SAPO-34-coated aluminum adsorber heat exchanger. Thus, the synthesis method proposed is affordable and effective to prepare SAPO-34 highly crystalline nanoparticles, with no need for post-synthetic procedures as the mother liquor separation from nanocrystals.
Библиографическая ссылка:
Shamanaeva I.
, Strelova S.
, Solovyeva M.
, Grekova A.
Rapid and Effective Way to Synthesize Highly Crystalline Nanosized SAPO-34 Particles
Nanomaterials. 2022. V.12. N22. 4086 :1-14. DOI: 10.3390/nano12224086 WOS Scopus РИНЦ CAPlus PMID OpenAlex
Rapid and Effective Way to Synthesize Highly Crystalline Nanosized SAPO-34 Particles
Nanomaterials. 2022. V.12. N22. 4086 :1-14. DOI: 10.3390/nano12224086 WOS Scopus РИНЦ CAPlus PMID OpenAlex
Даты:
| Поступила в редакцию: | 31 окт. 2022 г. |
| Принята к публикации: | 17 нояб. 2022 г. |
| Опубликована в печати: | 20 нояб. 2022 г. |
| Опубликована online: | 20 нояб. 2022 г. |
Идентификаторы БД:
| Web of science: | WOS:000887722500001 |
| Scopus: | 2-s2.0-85142447669 |
| РИНЦ: | 50359120 |
| Chemical Abstracts: | 2022:3000610 |
| PMID (PubMed): | 36432371 |
| OpenAlex: | W4309737267 |