Physicochemical and Catalytic Properties of Micro-Mesoporous Zeolite Materials Full article
Journal |
Russian Journal of Physical Chemistry A
ISSN: 0036-0244 , E-ISSN: 1531-863X |
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Output data | Year: 2011, Volume: 85, Number: 12, Pages: 2103-2108 Pages count : 6 DOI: 10.1134/S0036024411120260 | ||||
Tags | alkylation, benzene, dodecene-1, linear alkyl benzenes, micro-mesoporous materials, zeolites | ||||
Authors |
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Affiliations |
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Funding (1)
1 | Russian Foundation for Basic Research | 10-03-00829 |
Abstract:
Micro-mesoporous zeolite materials differing in their content of micro- and mesopores are obtained by the recrystallization of modernite zeolite. Using physicochemical methods such as scanning electron microscopy, transmission electron microscopy, X-ray powder diffraction analysis, small-angle X-ray scattering analysis, low-temperature adsorption of nitrogen, temperature-programmed desorption of NH3, and IR spectroscopy, it is shown that recrystallization leads first to the formation of mesopores with sizes of 20–30 Å in zeolite crystals, then to the appearance of zeolite/MCM-41 nanocomposite, and finally to the complete conversion of zeolite into mesoporous MCM-41. During this process, the concentration of strong Brønsted acid sites accessible to pyridine bases first increases then drops. The catalytic properties of the synthesized materials are studied in the reaction of alkylation of benzene by dodecene-1. It is shown that the creation of transport pores and the increase in the accessibility of acid sites due to recrystallization under soft conditions facilitate the alkylation reaction.
Cite:
Ponomareva O.V.
, Timoshin S.E.
, Knyazeva E.E.
, Ordomskii V.V.
, Yushchenko V.V.
, Kulikov N.S.
, Zaikovskii V.I.
, Ivanova I.I.
Physicochemical and Catalytic Properties of Micro-Mesoporous Zeolite Materials
Russian Journal of Physical Chemistry A. 2011. V.85. N12. P.2103-2108. DOI: 10.1134/S0036024411120260 WOS Scopus РИНЦ
Physicochemical and Catalytic Properties of Micro-Mesoporous Zeolite Materials
Russian Journal of Physical Chemistry A. 2011. V.85. N12. P.2103-2108. DOI: 10.1134/S0036024411120260 WOS Scopus РИНЦ
Original:
Пономарева О.
, Тимошин С.Е.
, Князева Е.Е.
, Ордомский В.В.
, Ющенко В.В.
, Куликов Н.С.
, Зайковский В.И.
, Иванова И.И.
Физико-химические и каталитические свойства цеолитных материалов с комбинированной микро-мезопористой структурой
Журнал физической химии. 2011. Т.85. №12. С.2253-2259. РИНЦ
Физико-химические и каталитические свойства цеолитных материалов с комбинированной микро-мезопористой структурой
Журнал физической химии. 2011. Т.85. №12. С.2253-2259. РИНЦ
Dates:
Submitted: | Dec 13, 2010 |
Published online: | Oct 28, 2011 |
Published print: | Dec 1, 2011 |
Identifiers:
Web of science | WOS:000297925700009 |
Scopus | 2-s2.0-80455141479 |
Elibrary | 18012252 |
Chemical Abstracts | 2011:1374073 |
Chemical Abstracts (print) | 156:102424 |
OpenAlex | W2010527820 |