Template-Free Synthesis of ZSM-5: Effect of Precursor Composition on the Crystallinity and Crystal Morphology | Sciact - CRIS-система Института катализа

Template-Free Synthesis of ZSM-5: Effect of Precursor Composition on the Crystallinity and Crystal Morphology Научная публикация

Журнал

Petroleum Chemistry
ISSN: 0965-5441 , E-ISSN: 1531-8532

Вых. Данные

Год: 2024, DOI: 10.1134/s0965544124060033

Ключевые слова

zeolites; ZSM-5; template-free synthesis; crystal size; neural network

Авторы

Bragina A.A. ^1,2 , Babina K.A. ^1,2 , Kasyanov A.V. ^1,2 , Parkhomchuk E.V. ^1,2

Организации

1	Boreskov Institute of Catalysis, Siberian Branch of Russian Academy of Sciences (BIC SB RAS), 630090, Novosibirsk, Russia
2	Novosibirsk State University, 630090, Novosibirsk, Russia

Информация о финансировании (1)

Министерство науки и высшего образования Российской Федерации (с 15 мая 2018)

FWUR-2024-0036

A series of ZSM-5 samples were synthesized by template-free hydrothermal synthesis without adding seed crystals. When synthesis parameters such as temperature, duration, and molar ratio of components being equal, various silicas (specifically, Silica-Fumed from Sigma-Aldrich; Rosil-175 from the Bashkir Soda Company (BSC), Russia; Silica from the Salavat Catalyst Plant (SCP), Russia; and Aerosil-300 from Evonik, Germany) and of aluminum (Al(NO3)3∙9H2O and NaAlO2) were varied. In the presence of sodium aluminate, highly crystalline ZSM-5 samples were synthesized, whereas the use of aluminum nitrate led to an amorphous product due to accelerating aluminosilicate condensation. The ZSM-5 crystals prepared from various SiO2 sources have different morphology, including the crystal size (ranging from 5.9 to 12.2 µm) and the aspect ratio (from 1.9 to 2.6). The ZSM-5 samples synthesized from available Russian-manufactured SiO2 sources (Rosil-175 (BSC) and Silica (SCP)) in the presence of sodium aluminate consisted of crystals with average sizes of 5.9 and 6.9 μm, respectively, and a narrow particle size distribution (cv < 20%).

Bragina A.A. , Babina K.A. , Kasyanov A.V. , Parkhomchuk E.V.
Template-Free Synthesis of ZSM-5: Effect of Precursor Composition on the Crystallinity and Crystal Morphology
Petroleum Chemistry. 2024. DOI: 10.1134/s0965544124060033 WOS Scopus OpenAlex

Поступила в редакцию:	24 мая 2024 г.
Принята к публикации:	19 сент. 2024 г.
Опубликована online:	30 окт. 2024 г.

Web of science:	WOS:001346018200002
Scopus:	2-s2.0-85207961215
OpenAlex:	W4403894040

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