Pore Structure of USY Zeolites in Dependence on Steaming Condition Научная публикация
| Журнал |
Zeitschrift fur Anorganische und Allgemeine Chemie
ISSN: 0044-2313 , E-ISSN: 1521-3749 |
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| Вых. Данные | Год: 2014, Том: 640, Номер: 3-4, Страницы: 577-581 Страниц : 5 DOI: 10.1002/zaac.201300403 | ||||
| Ключевые слова | Dealumination, Pore analyses, Structure, Zeolites | ||||
| Авторы |
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| Организации |
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Реферат:
Thermo-chemical dealumination of zeolite Y is accompanied by formation of different mesopore types. Closed mesopores in the nuclei and open pores at the crystal surface occur due to decomposition of its corresponding frameworks which are unstable in steam. Third type of lattice mesopores is formed inside the microporous bulk after removal of aluminum atoms if the remaining hydroxyl nests dehydroxylate. This process leads to a rearrangement of the zeolite framework. In contrast to the observed phenomenon, the defects are healed by migrating of ortho-silicic acid (H4SiO4) from the surface to the hydroxyl nests under conditions of suitable steaming. Since mesopores in USY zeolites (ultra stable Y) reduce their catalytic activity and the sorption capacity, they could be minimized by a proper treatment.
Библиографическая ссылка:
Lutz W.
, Shutilov R.A.
, Gavrilov V.Y.
Pore Structure of USY Zeolites in Dependence on Steaming Condition
Zeitschrift fur Anorganische und Allgemeine Chemie. 2014. V.640. N3-4. P.577-581. DOI: 10.1002/zaac.201300403 WOS Scopus РИНЦ CAPlusCA OpenAlex
Pore Structure of USY Zeolites in Dependence on Steaming Condition
Zeitschrift fur Anorganische und Allgemeine Chemie. 2014. V.640. N3-4. P.577-581. DOI: 10.1002/zaac.201300403 WOS Scopus РИНЦ CAPlusCA OpenAlex
Даты:
| Поступила в редакцию: | 13 авг. 2013 г. |
| Принята к публикации: | 9 янв. 2014 г. |
| Опубликована online: | 9 янв. 2014 г. |
| Опубликована в печати: | 1 мар. 2014 г. |
Идентификаторы БД:
| Web of science: | WOS:000333192400008 |
| Scopus: | 2-s2.0-84902176532 |
| РИНЦ: | 21629662 |
| Chemical Abstracts: | 2014:52374 |
| Chemical Abstracts (print): | 160:672357 |
| OpenAlex: | W1544526038 |