The Effect of H2O/SiO2 Ratio in Precursor Solution on the Crystal Size and Morphology of Zeolite ZSM-5 | Sciact - CRIS-система Института катализа

The Effect of H2O/SiO2 Ratio in Precursor Solution on the Crystal Size and Morphology of Zeolite ZSM-5 Научная публикация

Журнал

Microporous and Mesoporous Materials
ISSN: 1387-1811 , E-ISSN: 1873-3093

Вых. Данные

Год: 2017, Том: 244, Страницы: 93-100 Страниц : 8 DOI: 10.1016/j.micromeso.2017.02.060

Ключевые слова

Aggregate-like hollow crystals, Crystal size/morphology control, ZSM-5

Авторы

Sashkina Kseniya A. ^1,2 , Qi Zhiye ^2,3 , Wu Wei ³ , Ayupov Artem B. ¹ , Lysikov Anton I. ^1,2 , Parkhomchuk Ekaterina V. ^1,2

Организации

1	Boreskov Institute of Catalysis SB RAS, 5 Lavrentieva St., Novosibirsk 630090, Russia
2	Novosibirsk State University, 2 Pirogova St., Novosibirsk 630090, Russia
3	School of Chemistry and Material Sciences, Heilongjiang University, Harbin 150080, PR China

Информация о финансировании (1)

Российский фонд фундаментальных исследований

16-33-00523

A series of zeolites ZSM-5 has been synthesized in hydrothermal conditions under various ratios of H2O/SiO2 ranging from 10 to 300. Materials have been characterized by X-ray diffraction, scanning and transmission electron microscopy, nitrogen adsorption measurements, X-ray fluorescence spectrometry, inductively coupled plasma optical emission spectrometry and temperature-programmed desorption of ammonia. The effect of H2O/SiO2 ratio in precursor solution on ZSM-5 product yield, crystallinity, crystal size, crystal size distribution, morphology, texture and acidity has been studied. The increase of H2O/SiO2 ratio in precursor solution from 10 to 300 results in decreasing the average crystal size from 1250 to 180 nm, the higher H2O/SiO2 ratio, the wider crystal size distribution. Aggregate-like mesoporous/hollow ellipsoid crystals and smooth pill-shaped crystals have been produced from precursor solutions with H2O/SiO2 = 25–100 and H2O/SiO2 = 10; 300, respectively. The average size of domains forming aggregate-like crystals is 40−50 nm. The specific acidity of ZSM-5 samples, synthesized from precursor solutions with different H2O/SiO2 molar ratios and the same Si/Al, has a trend to decrease along with the average crystal size increase.

Sashkina K.A. , Qi Z. , Wu W. , Ayupov A.B. , Lysikov A.I. , Parkhomchuk E.V.
The Effect of H2O/SiO2 Ratio in Precursor Solution on the Crystal Size and Morphology of Zeolite ZSM-5
Microporous and Mesoporous Materials. 2017. V.244. P.93-100. DOI: 10.1016/j.micromeso.2017.02.060 WOS Scopus РИНЦ CAPlusCA OpenAlex

Поступила в редакцию:	7 дек. 2016 г.
Принята к публикации:	17 февр. 2017 г.
Опубликована online:	20 февр. 2017 г.
Опубликована в печати:	15 мая 2017 г.

Web of science:	WOS:000399515500013
Scopus:	2-s2.0-85013803999
РИНЦ:	29488041
Chemical Abstracts:	2017:345962
Chemical Abstracts (print):	166:320661
OpenAlex:	W2591369776

БД	Цитирований
Web of science	29
Scopus	31
РИНЦ	26
OpenAlex	30