Screw-Like Morphology of Silicoaluminophosphate-11 (SAPO-11) Crystallized in Ethanol Medium
Научная публикация
| Общая информация |
Язык:
Английский,
Жанр:
Статья (Full article),
Статус опубликования:
Опубликована,
Оригинальность:
Оригинальная
|
| Журнал |
Materials Letters
ISSN: 0167-577X
, E-ISSN: 1873-4979
|
| Вых. Данные |
Год: 2018,
Том: 228,
Страницы: 61-64
Страниц
: 4
DOI:
10.1016/j.matlet.2018.05.118
|
| Ключевые слова |
SAPO-11; Silicoaluminophosphate; Ethanol medium; Crystal morphology; Porous materials; Texture |
| Авторы |
Tiuliukova I.A.
1,2
,
Rudina N.A.
1
,
Lysikov A.I.
1,2
,
Cherepanova S.V.
1
,
Parkhomchuk E.V.
1,2
|
| Организации |
| 1 |
Boreskov Institute of Catalysis SB RAS, Lavrentiev Ave. 5, Novosibirsk 630090, Russia
|
| 2 |
Novosibirsk State University, Pirogova Str., 2, Novosibirsk 630090, Russia
|
|
Информация о финансировании (1)
|
1
|
Министерство образования и науки Российской Федерации
|
14.604.21.0159 (RFMEFI60417X0159)
|
Silicoaluminophosphate-11 (SAPO-11) crystals were synthesized in different media – water and ethanol – by the two-stage hydrothermal method using ultrasonic pretreatment of precursor mixture. Changing of the synthesis medium from water to ethanol leads to transformation of SAPO-11 morphology: from pseudo-spherical aggregative crystals to novel screw-like morphology. SAPO-11 crystals, synthesized in ethanol medium (Et-SAPO-11), have remarkable textural properties: the greater values of BET surface area and micropore/mesopores volume, compared with crystals, obtained in the water medium (W-SAPO-11). Besides, the acidity of Et-SAPO-11 is lower than that of W-SAPO-11 due to hindered incorporation of silicon into aluminophosphate lattice in ethanol medium.