Physicochemical Features of the Formation of Siliceous Porous Mesophases 4. Effect of Duration and Temperature of the Hydrothermal Treatment on the Structural and Textural Properties
Научная публикация
| Общее |
Язык:
Английский,
Жанр:
Статья (Full article),
Статус опубликования:
Опубликована,
Оригинальность:
Переводная
|
| Журнал |
Russian Chemical Bulletin
ISSN: 1066-5285
, E-ISSN: 1573-9171
|
| Вых. Данные |
Год: 2001,
Том: 50,
Номер: 2,
Страницы: 175-179
Страниц
: 5
DOI:
10.1023/A:1009562211012
|
| Ключевые слова |
Mesoporous mesophase materials, Optimization of synthesis conditions, Structural and textural parameters |
| Авторы |
Derevyankin A.Y.
1
,
Fenelonov V.B.
1
,
Shmakov A.N.
1
,
Romannikov V.N.
1
|
| Организации |
| 1 |
G. K. Boreskov Inst. of Catalysis, Siberian Branch, Russian Academy of Sciences, 5 prosp. Akad. Lavrent'eva, 630090 Novosibirsk, Russian Federation
|
|
Информация о финансировании (4)
|
1
|
Civilian Research and Development Foundation
|
REC-008
|
|
2
|
Российский фонд фундаментальных исследований
|
98-03-32390
|
|
3
|
International Association for the Promotion of Co-operation with Scientists from the New Independent States of the Former Soviet Union
|
IR-97-0676
|
|
4
|
Министерство образования и науки Российской Федерации
|
98-8-5.2-50
|
The results of investigation of mesoporous mesophase materials C12--SiO2--MMM and C16--SiO2--MMM prepared at the optimized composition of the reaction mixture and different durations of hydrothermal treatment (HTT) at 120 °C and 140 °C are presented. Hydrothermal treatment at 120 °C influences slightly the specific surface area and the volume of the mesopores but gives a more ordered structure. Prolonged HTT at 140 °C results in irreversible structure degradation. The samples obtained with the optimal HTT duration are characterized by the minimum width of X-ray reflections, the maximum surface and volume of mesopores, and the minimum external surface.